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Bausch L, Probst M, Fritsch L, Mehl J, Siebenlist S, Willinger L. Bilateral juvenile osteochondrosis dissecans in monozygotic twins: a case report. J Orthop Surg Res 2024; 19:208. [PMID: 38561825 PMCID: PMC10983665 DOI: 10.1186/s13018-024-04683-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/05/2023] [Accepted: 03/15/2024] [Indexed: 04/04/2024] Open
Abstract
INTRODUCTION The etiology of osteochondrosis dissecans (OCD), a chondropathy associated with detachment of the subchondral bone and the overlaying cartilage, is not yet fully understood. While repetitive physical exercise-related stress is usually assumed to be the main risk factor for the occurrence of OCD, genetic predisposition could have an underestimated influence on the development of the disease. CASE REPORT We report a case of monozygotic twins with almost identical stages of bilateral osteochondrosis dissecans of the knee joint. In both patients, initially, a unilateral lesion occurred; despite restricted physical exercise, in the further course of the disease a lesion also developed on the contralateral side. While the lesion found most recently demonstrated an ongoing healing process at a 6-month follow-up, the other three lesions showed a natural course of healing under conservative treatment with significant clinical as well as radiological improvements after one year and complete consolidation in magnetic resonance imaging (MRI) after 2 years. CONCLUSION There could be a genetic component to the development of OCD, although this has not yet been proven. Based on a two-year MRI follow-up, we were able to show the self-limiting characteristics of juvenile osteochondrosis dissecans.
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Affiliation(s)
- Luca Bausch
- Department of Sports Orthopaedics, Technical University Munich, Ismaninger Str. 22, 81675, Munich, Germany
| | - Monika Probst
- Department of Diagnostic and Interventional Neuroradiology, Klinikum rechts der Isar, Technical University Munich, Munich, Germany
| | - Lorenz Fritsch
- Department of Sports Orthopaedics, Technical University Munich, Ismaninger Str. 22, 81675, Munich, Germany
| | - Julian Mehl
- Department of Sports Orthopaedics, Technical University Munich, Ismaninger Str. 22, 81675, Munich, Germany
| | - Sebastian Siebenlist
- Department of Sports Orthopaedics, Technical University Munich, Ismaninger Str. 22, 81675, Munich, Germany.
| | - Lukas Willinger
- Department of Sports Orthopaedics, Technical University Munich, Ismaninger Str. 22, 81675, Munich, Germany
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Hinz M, Weyer M, Brunner M, Fritsch L, Otto A, Siebenlist S, Achtnich A. Varus osteotomy as a salvage procedure for young patients with symptomatic patellofemoral arthritis and valgus malalignment at short- to mid-term follow-up: a case series. Arch Orthop Trauma Surg 2024; 144:1667-1673. [PMID: 38386061 PMCID: PMC10965738 DOI: 10.1007/s00402-024-05212-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/27/2023] [Accepted: 01/24/2024] [Indexed: 02/23/2024]
Abstract
PURPOSE The purpose of the study was to report the clinical, functional and radiological outcome following varus osteotomy as a salvage procedure in young to middle-aged patients with patellofemoral arthritis (PFA) and associated valgus malalignment. It was hypothesized that a significant improvement in knee function and reduction in pain would be achieved. Moreover, no conversion to patellofemoral joint arthroplasty could be observed. MATERIAL AND METHODS Patients (< 50 years of age) that underwent varus osteotomy between 08/2012 and 01/2020 for the treatment of symptomatic PFA and associated valgus malalignment were consecutively included (minimum follow-up: 24 months). Patient-reported outcome measures (PROM; International Knee Documentation Committee subjective knee form [IKDC]), Visual Analog Scale [VAS] for pain, Tegner Activity Scale [TAS], and satisfaction with the postoperative results (1-10-scale, 10 = highest satisfaction) and weight-bearing whole-leg anteroposterior radiographs were conducted pre- and postoperatively. The change in PROM and femorotibial angle (FTA) were tested for statistical significance. RESULTS In total, 12 patients (14 knees) were included (66.7% female; mean age: 33.8 ± SD 6.6 years). In ten cases, lateral opening-wedge distal femoral osteotomies (DFO) were performed, of which three cases included a concomitant femoral derotation. Three medial closing-wedge DFO and one medial closing-wedge high tibial osteotomy were performed. At follow-up (55.3 ± 29.3 months), a significant improvement in knee function (IKDC: 56.4 ± 14.4 to 69.1 ± 11.2, p = 0.015) and reduction in pain (VAS for pain: 3.5 [interquartile range 2.3-5.8] to 0.5 [0-2.0], p = 0.018) were observed. Patients were able to reach their preoperative sporting activity level (TAS: 3.0 [3.0-4.0] to 3.5 [3.0-4.0], p = 0.854) and were highly satisfied with the postoperative result (9.0 [6.5-10]). Additionally, a significant correction of valgus malalignment was observed (5.0° ± 2.9° valgus to 0.7° ± 3.2° varus, p < 0.001). Regarding complications, two re-osteosyntheses were performed due to loss of correction and delayed union. No conversion to patellofemoral arthroplasty occurred. CONCLUSION In patients with symptomatic PFA and associated valgus malalignment, varus osteotomy as a salvage procedure achieved a significant improvement in knee function and reduction in pain. No conversion to patellofemoral joint arthroplasty occurred at short- to mid-term follow-up. LEVEL OF EVIDENCE Retrospective case series, Level IV.
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Affiliation(s)
- Maximilian Hinz
- Department of Sports Orthopaedics, Technical University of Munich, Ismaninger Strasse 22, 81675, Munich, Germany.
| | - Maximilian Weyer
- Department of Sports Orthopaedics, Technical University of Munich, Ismaninger Strasse 22, 81675, Munich, Germany
| | - Moritz Brunner
- Department of Sports Orthopaedics, Technical University of Munich, Ismaninger Strasse 22, 81675, Munich, Germany
| | - Lorenz Fritsch
- Department of Sports Orthopaedics, Technical University of Munich, Ismaninger Strasse 22, 81675, Munich, Germany
| | - Alexander Otto
- Department of Sports Orthopaedics, Technical University of Munich, Ismaninger Strasse 22, 81675, Munich, Germany
| | - Sebastian Siebenlist
- Department of Sports Orthopaedics, Technical University of Munich, Ismaninger Strasse 22, 81675, Munich, Germany
| | - Andrea Achtnich
- Department of Sports Orthopaedics, Technical University of Munich, Ismaninger Strasse 22, 81675, Munich, Germany
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Wilhelm NJ, von Schacky CE, Lindner FJ, Feucht MJ, Ehmann Y, Pogorzelski J, Haddadin S, Neumann J, Hinterwimmer F, von Eisenhart-Rothe R, Jung M, Russe MF, Izadpanah K, Siebenlist S, Burgkart R, Rupp MC. Multicentric development and validation of a multi-scale and multi-task deep learning model for comprehensive lower extremity alignment analysis. Artif Intell Med 2024; 150:102843. [PMID: 38553152 DOI: 10.1016/j.artmed.2024.102843] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2023] [Revised: 03/11/2024] [Accepted: 03/11/2024] [Indexed: 04/02/2024]
Abstract
Osteoarthritis of the knee, a widespread cause of knee disability, is commonly treated in orthopedics due to its rising prevalence. Lower extremity misalignment, pivotal in knee injury etiology and management, necessitates comprehensive mechanical alignment evaluation via frequently-requested weight-bearing long leg radiographs (LLR). Despite LLR's routine use, current analysis techniques are error-prone and time-consuming. To address this, we conducted a multicentric study to develop and validate a deep learning (DL) model for fully automated leg alignment assessment on anterior-posterior LLR, targeting enhanced reliability and efficiency. The DL model, developed using 594 patients' LLR and a 60%/10%/30% data split for training, validation, and testing, executed alignment analyses via a multi-step process, employing a detection network and nine specialized networks. It was designed to assess all vital anatomical and mechanical parameters for standard clinical leg deformity analysis and preoperative planning. Accuracy, reliability, and assessment duration were compared with three specialized orthopedic surgeons across two distinct institutional datasets (136 and 143 radiographs). The algorithm exhibited equivalent performance to the surgeons in terms of alignment accuracy (DL: 0.21 ± 0.18°to 1.06 ± 1.3°vs. OS: 0.21 ± 0.16°to 1.72 ± 1.96°), interrater reliability (ICC DL: 0.90 ± 0.05 to 1.0 ± 0.0 vs. ICC OS: 0.90 ± 0.03 to 1.0 ± 0.0), and clinically acceptable accuracy (DL: 53.9%-100% vs OS 30.8%-100%). Further, automated analysis significantly reduced analysis time compared to manual annotation (DL: 22 ± 0.6 s vs. OS; 101.7 ± 7 s, p ≤ 0.01). By demonstrating that our algorithm not only matches the precision of expert surgeons but also significantly outpaces them in both speed and consistency of measurements, our research underscores a pivotal advancement in harnessing AI to enhance clinical efficiency and decision-making in orthopaedics.
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Affiliation(s)
- Nikolas J Wilhelm
- Department of Orthopedics and Sports Orthopedics, Klinikum rechts der Isar, School of Medicine, Munich, Germany; Munich Institute of Robotics and Machine Intelligence, Department of Electrical and Computer Engineering, Technical University of Munich, Munich, Germany.
| | - Claudio E von Schacky
- Department of Radiology, Klinikum rechts der Isar, School of Medicine, Munich, Germany
| | - Felix J Lindner
- Department of Orthopedic Sports Medicine , Klinikum rechts der Isar, School of Medicine, Munich, Germany
| | - Matthias J Feucht
- Department of Orthopedics and Trauma Surgery, Medical Center, Faculty of Medicine, Albert-Ludwigs-University of Freiburg, Freiburg, Germany; Orthopedic Clinic Paulinenhilfe, Diakonie-Hospital, Stuttgart, Germany
| | - Yannick Ehmann
- Department of Orthopedic Sports Medicine , Klinikum rechts der Isar, School of Medicine, Munich, Germany
| | - Jonas Pogorzelski
- Department of Orthopedic Sports Medicine , Klinikum rechts der Isar, School of Medicine, Munich, Germany
| | - Sami Haddadin
- Munich Institute of Robotics and Machine Intelligence, Department of Electrical and Computer Engineering, Technical University of Munich, Munich, Germany
| | - Jan Neumann
- Department of Radiology, Klinikum rechts der Isar, School of Medicine, Munich, Germany
| | - Florian Hinterwimmer
- Department of Orthopedics and Sports Orthopedics, Klinikum rechts der Isar, School of Medicine, Munich, Germany
| | - Rüdiger von Eisenhart-Rothe
- Department of Orthopedics and Sports Orthopedics, Klinikum rechts der Isar, School of Medicine, Munich, Germany
| | - Matthias Jung
- Department of Radiology, Medical Center, Faculty of Medicine, Albert-Ludwigs-University of Freiburg, Freiburg, Germany
| | - Maximilian F Russe
- Department of Radiology, Medical Center, Faculty of Medicine, Albert-Ludwigs-University of Freiburg, Freiburg, Germany
| | - Kaywan Izadpanah
- Department of Radiology, Medical Center, Faculty of Medicine, Albert-Ludwigs-University of Freiburg, Freiburg, Germany
| | - Sebastian Siebenlist
- Department of Orthopedic Sports Medicine , Klinikum rechts der Isar, School of Medicine, Munich, Germany
| | - Rainer Burgkart
- Department of Orthopedics and Sports Orthopedics, Klinikum rechts der Isar, School of Medicine, Munich, Germany
| | - Marco-Christopher Rupp
- Department of Orthopedic Sports Medicine , Klinikum rechts der Isar, School of Medicine, Munich, Germany
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Lappen S, Siebenlist S, Leschinger T, Kadantsev P, Geyer S, Wegmann K, Müller LP, Hackl M. The importance of interdigitating screw fixation of the trochlea in double plate osteosynthesis of low transcondylar distal humerus fractures: A biomechanical study. Injury 2024; 55:111486. [PMID: 38447478 DOI: 10.1016/j.injury.2024.111486] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/02/2024] [Revised: 02/05/2024] [Accepted: 02/25/2024] [Indexed: 03/08/2024]
Abstract
OBJECTIVE The trochlea is of great importance for the stability of the elbow and its fixation in low transcondylar fractures of the distal humerus is especially challenging. The aim of this study was to determine the optimal trochlea fixation in double plate osteosynthesis of intraarticular distal humerus fractures. METHODS A low transcondylar, C3-type distal humerus fracture was created in 20 fresh-frozen human cadaveric humeri. The samples were then randomly divided into two groups of 10 specimens each. Double plate osteosynthesis was performed in both groups. In group A, the two most distal screws of the lateral plate were inserted into the trochlea fragment. In group B, these screws did not extend into the trochlea. Displacement under cyclic loading and ultimate failure loads were determined for all specimens. RESULTS Group A showed significantly less displacement under cyclic loading in each measurement interval (0.92 mm vs. 1.53 mm after 100 cycles, p = 0 0.006; 1.10 mm vs. 1.84 mm after 1000 cycles, p = 0.007; 1.18 mm vs. 1.98 mm after 2000 cycles, p = 0.008). The ultimate failure load was significantly higher in group A than in group B (345.61 ± 120.389 N vs. 238.42 ± 131.61 N, p = 0.037). CONCLUSIONS Fixation of the trochlea with interdigitating screws in double plate osteosynthesis of low-condylar type C distal humerus fractures results in superior construct stability. LEVEL OF EVIDENCE not applicable (biomechanical).
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Affiliation(s)
- Sebastian Lappen
- Department of Sports Orthopeadics, Technical University of Munich, Klinikum rechts der Isar, Munich, Germany.
| | - Sebastian Siebenlist
- Department of Sports Orthopeadics, Technical University of Munich, Klinikum rechts der Isar, Munich, Germany
| | - Tim Leschinger
- Faculty of Medicine and University Hospital, Center for Orthopedic and Trauma Surgery, University of Cologne, Cologne, Germany
| | - Pavel Kadantsev
- Department of Sports Orthopeadics, Technical University of Munich, Klinikum rechts der Isar, Munich, Germany
| | - Stephanie Geyer
- Department of Sports Orthopeadics, Technical University of Munich, Klinikum rechts der Isar, Munich, Germany; Department for Orthopedics, St. Vinzenz Klinik, Pfronten, Germany
| | - Kilian Wegmann
- Faculty of Medicine and University Hospital, Center for Orthopedic and Trauma Surgery, University of Cologne, Cologne, Germany; OCM (Orthopädische Chirurgie München) Clinic, München, Germany
| | - Lars-Peter Müller
- Faculty of Medicine and University Hospital, Center for Orthopedic and Trauma Surgery, University of Cologne, Cologne, Germany
| | - Michael Hackl
- Faculty of Medicine and University Hospital, Center for Orthopedic and Trauma Surgery, University of Cologne, Cologne, Germany
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Willinger L, Runer A, Vieider R, Muench LN, Siebenlist S, Winkler PW. Noninvasive and Reliable Quantification of Anteromedial Rotatory Knee Laxity: A Pilot Study on Healthy Individuals. Am J Sports Med 2024; 52:1229-1237. [PMID: 38506950 PMCID: PMC10986148 DOI: 10.1177/03635465241234263] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/14/2023] [Accepted: 12/18/2023] [Indexed: 03/22/2024]
Abstract
BACKGROUND Anteromedial rotatory instability (AMRI) of the knee is a complex and severe condition caused by injury to the anterior cruciate ligament and/or the medial collateral ligament. Clinical studies dealing with AMRI are rare, and objective measurements are nonexistent. PURPOSE/HYPOTHESIS The objectives of this study were, first, to quantify anteromedial rotatory knee laxity in healthy individuals using a noninvasive image analysis software and, second, to assess intra- and interrater reliability and equivalence in measuring anteromedial knee translation (AMT). It was hypothesized that AMT could be reliably quantified using a noninvasive image analysis software. STUDY DESIGN Cohort study; Level of evidence, 3. METHODS This prospective proof-of-concept study included healthy individuals aged 16 to 40 years with no history of knee injury or surgery. Three adhesive surface markers were placed on predefined landmarks on the medial side of the knee. Three independent investigators examined anteromedial rotatory knee laxity with an anterior drawer test in different tibial rotations (neutral tibial rotation, 15° of external tibial rotation, and 15° of internal tibial rotation). The entire examination of each knee was recorded, and AMT including the side-to-side difference (SSD) was assessed using a freely available and validated image analysis software (PIVOT iPad application). Group comparisons were performed using a 1-way analysis of variance with Bonferroni-adjusted post hoc analysis. Intraclass correlation coefficients (ICCs) were calculated to assess inter- and intrarater reliability of AMT measurements. Equivalence of measurements was evaluated using the 2 one-sided t-test procedure. RESULTS Anteromedial rotatory knee laxity was assessed in 30 knees of 15 participants (53% male) with a mean age of 26.2 ± 3.5 years. In all 3 raters, the highest AMT was observed in neutral tibial rotation (range of means, 2.2-3.0 mm), followed by external tibial rotation (range of means, 2.0-2.4 mm) and internal tibial rotation (range of means, 1.8-2.2 mm; P < .05). Intrarater reliability of AMT (ICC, 0.88-0.96) and SSD (ICC, 0.61-0.96) measurements was good to excellent and moderate to excellent, respectively. However, interrater reliability was poor to moderate for AMT (ICC, 0.44-0.73) and SSD (ICC, 0.12-0.69) measurements. Statistically significant equivalence of AMT and SSD measurements was observed between and within raters for almost all testing conditions. CONCLUSION Anteromedial rotatory knee laxity could be quantified using a noninvasive image analysis software, with the highest AMT observed during neutral tibial rotation in uninjured individuals. Reliability and equivalence of measurements were good to excellent within raters and moderate between raters.
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Affiliation(s)
- Lukas Willinger
- Department of Sports Orthopaedics, Technical University of Munich, Munich, Germany
| | - Armin Runer
- Department of Sports Orthopaedics, Technical University of Munich, Munich, Germany
| | - Romed Vieider
- Department of Sports Orthopaedics, Technical University of Munich, Munich, Germany
| | - Lukas N. Muench
- Department of Sports Orthopaedics, Technical University of Munich, Munich, Germany
- Department of Trauma and Reconstructive Surgery, Artemed Klinikum München Süd, Munich, Germany
| | - Sebastian Siebenlist
- Department of Sports Orthopaedics, Technical University of Munich, Munich, Germany
| | - Philipp W. Winkler
- Department of Sports Orthopaedics, Technical University of Munich, Munich, Germany
- Department of Orthopaedics and Traumatology, Kepler University Hospital Linz, Linz, Austria
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Ebrahimi Ardjomand S, Meurer F, Ehmann Y, Pogorzelski J, Waschulzik B, Makowski MR, Siebenlist S, Heuck A, Woertler K, Neumann J. Evaluation of Conventional MR Imaging of the Shoulder in the Diagnosis of Lesions of the Biceps Pulley. Acad Radiol 2024:S1076-6332(24)00062-X. [PMID: 38448326 DOI: 10.1016/j.acra.2024.01.040] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2023] [Revised: 01/20/2024] [Accepted: 01/29/2024] [Indexed: 03/08/2024]
Abstract
RATIONALE AND OBJECTIVES To determine the diagnostic accuracy and reproducibility of conventional MR imaging (MRI) of the shoulder in evaluating biceps pulley lesions using arthroscopy as the standard of reference. METHODS In a retrospective study, MR examinations of 68 patients with arthroscopically proven torn or intact biceps pulley were assessed for the presence of pulley lesions by three radiologists. The following criteria were evaluated: displacement of the long head of the biceps tendon (LHBT) relative to the subscapularis tendon (displacement sign), subluxation/dislocation of the LHBT, the integrity of the superior glenohumeral ligament (SGHL) and the coracohumeral ligament (CHL), lesions of the supraspinatus (SSP) and subscapularis (SSC) tendons adjacent to the rotator interval, presence of biceps tendinopathy and subacromial bursitis. RESULTS There were 42 patients with pulley lesions in the study group. Conventional MR imaging showed an overall sensitivity of 95.2%, 88.1% and 92.9%, a specificity of 61.5%, 73.1%, and 80.8% and an accuracy of 82.4%, 82.4% and 88.2% in the diagnosis of pulley lesions. Interobserver agreement was substantial (multirater k = 0.75). Biceps tendinopathy (97.6%, 95.2%, 97.6%), defects of the SGHL (86.3%, 81.0%, 88.1%) and the displacement sign (88.1%, 81.0%, 85.7%) were the most sensitive diagnostic criteria. Subluxation/dislocation of the LHBT was insensitive (78.6%, 42.9%, 33.3%), but specific (69.2%, 100,0%, 96.2%). CONCLUSION In the diagnosis of pulley lesions, conventional MR imaging is reproducible and shows high sensitivity and accuracy but moderate specificity.
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Affiliation(s)
- Saba Ebrahimi Ardjomand
- Department of Radiology, Klinikum Rechts der Isar, School of Medicine, Technical University of Munich, Ismaninger Strasse 22, 81675 Munich, Germany.
| | - Felix Meurer
- Department of Radiology, Klinikum Rechts der Isar, School of Medicine, Technical University of Munich, Ismaninger Strasse 22, 81675 Munich, Germany; Musculoskeletal Radiology Section, Klinikum Rechts der Isar, School of Medicine, Technical University of Munich, Ismaninger Strasse 22, 81675 Munich, Germany
| | - Yannick Ehmann
- Department of Orthopaedic Sports Medicine, Klinikum Rechts der Isar, School of Medicine, Technical University of Munich, Ismaninger Strasse 22, 81675 Munich, Germany
| | - Jonas Pogorzelski
- Department of Orthopaedic Sports Medicine, Klinikum Rechts der Isar, School of Medicine, Technical University of Munich, Ismaninger Strasse 22, 81675 Munich, Germany
| | - Birgit Waschulzik
- Institute for AI and Informatics in Medicine, Klinikum Rechts der Isar, School of Medicine, Technical University of Munich, Ismaninger Strasse 22, 81675 Munich, Germany
| | - Marcus R Makowski
- Department of Radiology, Klinikum Rechts der Isar, School of Medicine, Technical University of Munich, Ismaninger Strasse 22, 81675 Munich, Germany
| | - Sebastian Siebenlist
- Department of Orthopaedic Sports Medicine, Klinikum Rechts der Isar, School of Medicine, Technical University of Munich, Ismaninger Strasse 22, 81675 Munich, Germany
| | - Andreas Heuck
- Clinic and Polyclinic of Radiology, Ludwig-Maximilian-University Hospital, Marchioninistraße 15, 81377 Munich, Germany
| | - Klaus Woertler
- Department of Radiology, Klinikum Rechts der Isar, School of Medicine, Technical University of Munich, Ismaninger Strasse 22, 81675 Munich, Germany; Musculoskeletal Radiology Section, Klinikum Rechts der Isar, School of Medicine, Technical University of Munich, Ismaninger Strasse 22, 81675 Munich, Germany
| | - Jan Neumann
- Department of Radiology, Klinikum Rechts der Isar, School of Medicine, Technical University of Munich, Ismaninger Strasse 22, 81675 Munich, Germany; Musculoskeletal Radiology Section, Klinikum Rechts der Isar, School of Medicine, Technical University of Munich, Ismaninger Strasse 22, 81675 Munich, Germany
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Thiele K, Unmann A, Geyer S, Siebenlist S, Scheibel M, Seemann R, Lerchbaumer M, Schoch C, Mader K. Evaluation of the efficiency of an ultrasound-supported infiltration technique in patients with tennis elbow applying the ITEC medical device: a multicenter study. JSES Int 2024; 8:361-370. [PMID: 38464435 PMCID: PMC10920118 DOI: 10.1016/j.jseint.2023.11.006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/12/2024] Open
Abstract
Background The treatment of lateral epicondylitis remains unsatisfactory in certain cases. The aim of this study is to investigate the efficiency of an ultrasound-guided infiltration combined with fenestration of the extensor tendon postulating a 50% reduction in pain on exertion within 6 months. Methods In a prospective, nonrandomized, multicenter study design, 68 patients with chronic lateral epicondylitis and symptoms lasted for at least 6 weeks were included. Each hospital has been assigned for Traumeel (A), autologous whole blood (B), or dextrose (C) in advance. Preinterventional, 6 weeks, 12 weeks, 6 and 12 months after infiltration, patient-related outcome parameter, and dorsal wrist extension strength were documented. Preinterventional (obligate) and after 6 months (optional) radiological evaluation (magnetic resonance imaging) was performed. Results The Visual Analog Scale showed a significant reduction after 6 months in all groups (A. 4.8-2.5, B. 6.2-2.3, C. 5.8-2.4). Similar results could be observed with Subjective elbow value, Disabilities of Arm, Shoulder, and Hand Score, Mayo Elbow Performance Score, and Patient Rated Tennis Elbow Evaluation. The loss of strength could be completely compensated after about 6 months. Magnetic resonance imaging did not fully reflect clinical convalescence. Re-infiltrations were sometimes necessary for final reduction of symptoms (A = 11, B = 8, C = 4). Switching to surgical intervention was most frequently observed in group C (A = 2, B = 1, C = 5). In 14.5% of the cases, no improvement of the symptoms could be achieved with this method. Conclusion The primary hypothesis of a significant long-term pain reduction of at least 50% could be achieved regardless of the medication chosen.
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Affiliation(s)
- Kathi Thiele
- Center for Musculoskeletal Surgery, Charité–University of Berlin, Berlin, Germany
| | - Annemarie Unmann
- Center for Musculoskeletal Surgery, Charité–University of Berlin, Berlin, Germany
- Trauma Department, LKH Feldbach, Feldbach, Austria
| | - Stephanie Geyer
- Department of Shoulder and Elbow Surgery, St. Vinzenz Klinik Pfronten, Pfronten, Germany
- Sektion Sportorthopädie, Klinikum rechts der Isar, München, Germany
| | | | - Markus Scheibel
- Center for Musculoskeletal Surgery, Charité–University of Berlin, Berlin, Germany
- Department of Shoulder and Elbow Surgery, Schulthess Klinik, Zürich, Switzerland
| | - Ricarda Seemann
- Center for Musculoskeletal Surgery, Charité–University of Berlin, Berlin, Germany
- Zentrum für Orthopädie&Unfallchirurgie Tettnang, Tettnang, Germany
| | | | - Christian Schoch
- Sektion Sportorthopädie, Klinikum rechts der Isar, München, Germany
| | - Konrad Mader
- Zentrum für Orthopädie&Unfallchirurgie Tettnang, Tettnang, Germany
- Division Hand, Forearm and Elbow Surgery, Department of Trauma and Orthopaedic Surgery, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
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Rupp MC, Hochberger F, Berthold DP, Muench LN, Imhoff AB, Siebenlist S, Willinger L. Tibiofemoral Subluxation on Radiograph as a Predictor of Location and Size of Osteochondritis Dissecans Lesions of the Knee. Orthop J Sports Med 2024; 12:23259671241232397. [PMID: 38455152 PMCID: PMC10919139 DOI: 10.1177/23259671241232397] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/20/2023] [Accepted: 08/18/2023] [Indexed: 03/09/2024] Open
Abstract
Background Lower limb malalignment has been associated with osteochondritis dissecans (OCD). However, the location of the OCD lesion often is not concordant with the mechanical leg axis. Other potentially modifiable alignment parameters may influence the propensity for impingement of the femoral condyles. Purpose To assess differences in lower limb alignment (LLA) and relative tibiofemoral position between patients with medial (MFC-OCD) or lateral OCD (LFC-OCD) of the femoral condyle. Study Design Cohort study; Level of evidence, 3. Methods Patients ≤30 years old who were diagnosed with unicondylar OCD between January 2010 and January 2020 were eligible for this study. Included were 55 patients (age, 20.8 ± 4.5 years)-46 with MFC-OCD and 9 with LFC-OCD. Preoperative standing long-leg radiographs were studied to obtain primary outcomes-including LLA and mechanical alignment analyses-and secondary outcomes-including knee joint obliquity angle; rotation angle; medial, central (c-subluxation), and lateral subluxation (L-subluxation) of the tibia relative to the femur in the coronal plane; and tibiofemoral joint line center distance (TFJCD). Results With regard to primary outcomes, LLA was significantly different between MFC-OCD (1.7°± 3.1° varus) and LFC-OCD (2.7 ± 3.1° valgus) (P < .001), and 78% (36/46) of patients with MFC-OCD had varus alignment, whereas 78% (7/9) of patients with LFC-OCD had valgus alignment (P < 0.002). With regard to secondary outcomes, patients with MFC-OCD had a more medial tibial position in relation to the femur, with a significantly smaller rotation angle (5.6°± 2.4° vs 9.6°± 3.6°; P < .001), a smaller C-subluxation (7.2 ± 6.6 vs 14.9 ± 8.8 mm; P < .01), a smaller L-subluxation (2.3 ± 2.6 vs 4.4 ± 2.7 mm; P < .05), and reduced TFJCD (3.5 ± 1.7 vs 6.6 ± 1.8 mm; P < .001) compared with the LFC-OCD group. For patients with MFC-OCD, the size of the OCD was significantly correlated with C-subluxation (r = 0.412; P = .006). Conclusion LLA was significantly different according to OCD location. In patients with MFC-OCD, the tibia was subluxated medially, resulting in a change of joint geometry by approximation of the medial tibial eminence toward the medial femoral condyle, potentially causing excessive pressure overload and microtrauma of the cartilage. Interestingly, the extent of subluxation was correlated with OCD size.
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Affiliation(s)
| | - Felix Hochberger
- Department of Sports Orthopaedics, Technical University Munich, Munich, Germany
| | - Daniel P. Berthold
- Department of Sports Orthopaedics, Technical University Munich, Munich, Germany
- Department of Orthopaedics and Trauma Surgery, Musculoskeletal University Center Munich (MUM), University Hospital, Ludwig Maximilian University of Munich (LMU Munich), Munich, Germany
| | - Lukas N. Muench
- Department of Sports Orthopaedics, Technical University Munich, Munich, Germany
| | - Andreas B. Imhoff
- Department of Sports Orthopaedics, Technical University Munich, Munich, Germany
| | | | - Lukas Willinger
- Department of Sports Orthopaedics, Technical University Munich, Munich, Germany
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9
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Berthold DP, Rupp MC, Obopilwe E, Siebenlist S, Elhassan BT, Mazzocca AD, Muench LN. Anterior Latissimus Dorsi Transfer for Irreparable Subscapularis Tears Improves Shoulder Kinematics in a Dynamic Biomechanical Cadaveric Shoulder Model. Am J Sports Med 2024; 52:624-630. [PMID: 38294257 PMCID: PMC10905977 DOI: 10.1177/03635465231223514] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/17/2023] [Accepted: 11/08/2023] [Indexed: 02/01/2024]
Abstract
BACKGROUND In young patients with irreparable subscapularis deficiency (SSC-D) and absence of severe osteoarthritis, anterior latissimus dorsi transfer (aLDT) has been proposed as a treatment option to restore the anteroposterior muscular force couple to regain sufficient shoulder function. However, evidence regarding the biomechanical effect of an aLDT on glenohumeral kinematics remains sparse. PURPOSE/HYPOTHESIS The purpose of this study was to investigate the effects of an aLDT on range of glenohumeral abduction motion, superior migration of the humeral head (SM), and cumulative deltoid force (cDF) in a simulated SSC-D model using a dynamic shoulder model. It was hypothesized that an aLDT would restore native shoulder kinematics by reestablishing the insufficient anteroposterior force couple. STUDY DESIGN Controlled laboratory study. METHODS Eight fresh-frozen cadaveric shoulders were tested using a validated shoulder simulator. Glenohumeral abduction angle (gAA), SM, and cDF were compared across 3 conditions: (1) native, (2) SSC-D, and (3) aLDT. gAA and SM were measured using 3-dimensional motion tracking, while cDF was recorded in real time during dynamic abduction motion by load cells connected to actuators. RESULTS The SSC-D significantly decreased gAA (Δ-9.8°; 95% CI, -14.1° to -5.5°; P < .001) and showed a significant increase in SM (Δ2.0 mm; 95% CI, 0.9 to 3.1 mm; P = .003), while cDF was similar (Δ7.8 N; 95% CI, -9.2 to 24.7 N; P = .586) when compared with the native state. Performing an aLDT resulted in a significantly increased gAA (Δ3.8°; 95% CI, 1.8° to 5.7°; P < .001), while cDF (Δ-36.1 N; 95% CI, -48.7 to -23.7 N; P < .001) was significantly reduced compared with the SSC-D. For the aLDT, no anterior subluxation was observed. However, the aLDT was not able to restore native gAA (Δ-6.1°; 95% CI, -8.9° to -3.2°; P < .001). CONCLUSION In this cadaveric study, performing an aLDT for an irreparable subscapularis insufficiency restored the anteroposterior force couple and prevented superior and anterior humeral head migration, thus improving glenohumeral kinematics. Furthermore, compensatory deltoid forces were reduced by performing an aLDT. CLINICAL RELEVANCE Given the favorable effect of the aLDT on shoulder kinematics in this dynamic shoulder model, performing an aLDT may be considered as a treatment option in patients with irreparable SSC-D.
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Affiliation(s)
- Daniel P. Berthold
- Department of Orthopaedics and Trauma Surgery, Musculoskeletal University Center Munich (MUM), University Hospital, LMU Munich, Munich, Germany
- Department of Sports Orthopaedics, Technical University of Munich, Munich, Germany
| | | | - Elifho Obopilwe
- Department of Orthopaedic Surgery, University of Connecticut, Farmington, Connecticut, USA
| | - Sebastian Siebenlist
- Department of Sports Orthopaedics, Technical University of Munich, Munich, Germany
| | - Bassem T. Elhassan
- Department of Orthopaedic Surgery, Massachusetts General Hospital, Boston, Massachusetts, USA
| | - Augustus D. Mazzocca
- Department of Orthopaedic Surgery, Massachusetts General Hospital, Boston, Massachusetts, USA
| | - Lukas N. Muench
- Department of Sports Orthopaedics, Technical University of Munich, Munich, Germany
- Department of Trauma Surgery, Armed Klinikum München Süd, Munich, Germany
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10
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Breulmann FL, Krenn C, Fraißler L, Kindermann H, Gattringer M, Gruber MS, Siebenlist S, Mattiassich GP, Bischofreiter M. Recreational athletes during downhill-mountain biking (DMB) show high incidence of upper extremity fractures in combination with soft-tissue injuries. Sci Rep 2024; 14:4170. [PMID: 38378971 PMCID: PMC10879515 DOI: 10.1038/s41598-024-54774-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2023] [Accepted: 02/16/2024] [Indexed: 02/22/2024] Open
Abstract
Downhill-mountain biking (DMB) is a high-risk sport and often leads to several injuries, especially in non-professional athletes. We retrospectively analyzed the most common injuries and profiled the injury mechanism. Until now, there is no such analysis of injuries by non-professional mountain bike athletes. We collected patient data from patients who suffered from an injury during DMB. The inclusion criteria were (1) injury during the summer season of 2020 and 2021, (2) injury during off-road and downhill mountain bike sports activity, and (3) treatment at the Department of Traumatology of the Klinik Diakonissen Schladming. Patient data was analyzed regarding the type of injury, location of the injury, patient age and gender of the patients. Most patients with injury are at the age of 26-35. Second most are between 36 and 71 years old. The type of injury differs between age and gender. Mostly upper-extremity injuries occur with a high probability of shoulder injuries. In the elderly patients, we found additional injuries of the thorax and chest. To conclude, most common types of injuries are soft-tissue injuries, often in combination with fractures. The risk for injuries is higher for recreational athletes with different injury characteristics than professional athletes.
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Affiliation(s)
- Franziska Lioba Breulmann
- Department of Sports Orthopedics, Klinikum rechts der Isar, Technical University of Munich, 81675, Munich, Germany.
| | - Claudia Krenn
- Department of Orthopedics and Traumatology, Klinik Diakonissen Schadming, 8970, Schladming, Austria
- Teaching Hospital of the Paracelsus Medical University Salzburg, 5020, Salzburg, Austria
| | - Lukas Fraißler
- Department of Orthopedics and Traumatology, Klinik Diakonissen Schadming, 8970, Schladming, Austria
- Teaching Hospital of the Paracelsus Medical University Salzburg, 5020, Salzburg, Austria
| | - Harald Kindermann
- Department of Marketing and Electronic Business, University of Applied Sciences Upper Austria, 4400, Steyr, Austria
| | - Michael Gattringer
- Teaching Hospital of the Paracelsus Medical University Salzburg, 5020, Salzburg, Austria
- Department of Orthopedic Surgery, Ordensklinikum Linz, Barmherzige Schwestern, Vinzenzgruppe, Center of Orthopedic Excellence, 4020, Linz, Austria
| | - Michael Stephan Gruber
- Teaching Hospital of the Paracelsus Medical University Salzburg, 5020, Salzburg, Austria
- Department of Orthopedic Surgery, Ordensklinikum Linz, Barmherzige Schwestern, Vinzenzgruppe, Center of Orthopedic Excellence, 4020, Linz, Austria
| | - Sebastian Siebenlist
- Department of Sports Orthopedics, Klinikum rechts der Isar, Technical University of Munich, 81675, Munich, Germany
| | - Georg Philipp Mattiassich
- Department of Orthopedics and Traumatology, Klinik Diakonissen Schadming, 8970, Schladming, Austria
- Teaching Hospital of the Paracelsus Medical University Salzburg, 5020, Salzburg, Austria
| | - Martin Bischofreiter
- Department of Orthopedics and Traumatology, Klinik Diakonissen Schadming, 8970, Schladming, Austria
- Teaching Hospital of the Paracelsus Medical University Salzburg, 5020, Salzburg, Austria
- Department of Orthopedic Surgery, Ordensklinikum Linz, Barmherzige Schwestern, Vinzenzgruppe, Center of Orthopedic Excellence, 4020, Linz, Austria
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Breulmann FL, Lappen S, Ehmann Y, Bischofreiter M, Lacheta L, Siebenlist S. Treatment strategies for simple elbow dislocation - a systematic review. BMC Musculoskelet Disord 2024; 25:148. [PMID: 38365699 PMCID: PMC10874000 DOI: 10.1186/s12891-024-07260-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/22/2023] [Accepted: 02/04/2024] [Indexed: 02/18/2024] Open
Abstract
BACKGROUND Current treatment concepts for simple elbow dislocation involve conservative and surgical approaches. The aim of this systematic review was to identify the superiority of one treatment strategy over the other by a qualitative analysis in adult patients who suffered simple elbow luxation. STUDY DESIGN A systematic review in accordance with the PRISMA guidelines and following the suggestions for reporting on qualitative summaries was performed. A literature search was conducted using PubMed and Scopus, including variations and combinations of the following keywords: elbow, radiohumeral, ulnohumeral, radioulnar, luxation, and therapy. Seventeen studies that performed a randomized controlled trial to compare treatment strategies as conservative or surgical procedures were included. Reviews are not selected for further qualitative analysis. The following outcome parameters were compared: range of motion (ROM), Mayo Elbow Performance Score (MEPS), Disabilities of the Arm, Shoulder and Hand outcome measure (Quick-DASH), recurrent instability, pain measured by visual analog scale (VAS) and time to return to work (RW). RESULTS Early mobilization after conservative treatment strategies showed improved ROM compared to immobilization for up to 3 weeks after surgery with less extension deficit in the early mobilization group (16° ± 13°. vs. 19.5° ± 3°, p < 0.05), as well as excellent clinical outcome scores. Surgical approaches showed similar results compared to conservative treatment, leading to improved ROM (115 vs. 118 ± 2.8) and MEPS: 95 ± 7 vs. 92 ± 4. CONCLUSION Conservative treatment with early functional training of the elbow remains the first-line therapy for simple elbow dislocation. The surgical procedure provides similar outcomes compared to conservative treatment regarding MEPS and ROM for patients with slight initial instability in physical examination and radiographs. People with red flags for persistent instability, such as severe bilateral ligament injuries and moderate to severe instability during initial physical examination, should be considered for a primary surgical approach to prevent recurrent posterolateral and valgus instability. Postoperative early mobilization and early mobilization for conservatively treated patients is beneficial to improve patient outcome and ROM.
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Affiliation(s)
- Franziska Lioba Breulmann
- Department of Sports Orthopedics, Klinikum Rechts Der Isar, Technical University of Munich, Ismaningerstraße 22, Munich, 81675, Germany
| | - Sebastian Lappen
- Department of Sports Orthopedics, Klinikum Rechts Der Isar, Technical University of Munich, Ismaningerstraße 22, Munich, 81675, Germany
| | - Yannick Ehmann
- Department of Sports Orthopedics, Klinikum Rechts Der Isar, Technical University of Munich, Ismaningerstraße 22, Munich, 81675, Germany
| | - Martin Bischofreiter
- Department of Orthopedic Surgery, Ordensklinikum Barmherzige Schwestern Linz, Linz, 4010, Austria
- Department of Orthopedics and Traumatology, Klinik Diakonissen Schladming, Schladming, 8970, Austria
| | - Lucca Lacheta
- Department of Sports Orthopedics, Klinikum Rechts Der Isar, Technical University of Munich, Ismaningerstraße 22, Munich, 81675, Germany
| | - Sebastian Siebenlist
- Department of Sports Orthopedics, Klinikum Rechts Der Isar, Technical University of Munich, Ismaningerstraße 22, Munich, 81675, Germany.
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12
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Mehl J, Siebenlist S. [Influence of the bony alignment on the ligaments of the knee joint]. Unfallchirurgie (Heidelb) 2024; 127:27-34. [PMID: 37610469 DOI: 10.1007/s00113-023-01363-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Accepted: 07/28/2023] [Indexed: 08/24/2023]
Abstract
In recent years biomechanical and clinical studies have shown that the three-dimensional bony alignment of the lower extremities has a relevant influence on the ligamentous structures of the knee and consequently on the stability of the knee joint. Therefore, in the case of pathological ligamentous damage of the knee joint, a possible malalignment must always be thoroughly evaluated and if necessary, included in the treatment planning. Varus malalignment plays an important role especially with respect to the cruciate ligaments as well as the posterolateral ligamentous structures and has been identified as a significant risk factor for failure after surgical reconstruction of these ligamentous structures. Similar data have also been published for valgus malalignment particularly with respect to its negative influence on the anterior cruciate ligament and the medial capsuloligamentous complex. Alignment deviations in the sagittal plane, especially the inclination of the tibial articular surface (slope), have been extensively investigated in several recent studies. It has been demonstrated that the tibial slope has a relevant influence on the anteroposterior stability of the knee joint and hence on the cruciate ligaments. First clinical studies on the surgical correction of the axis in selected patients showed very promising results with the potential of protecting ligament reconstructions against repeated failure; however, further data especially regarding the importance and the exact indications for an additional alignment correction are necessary.
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Affiliation(s)
- Julian Mehl
- Sektion Sportorthopädie, Klinikum rechts der Isar, Technische Universität München, Ismaninger Str. 22, 81675, München, Deutschland.
| | - Sebastian Siebenlist
- Sektion Sportorthopädie, Klinikum rechts der Isar, Technische Universität München, Ismaninger Str. 22, 81675, München, Deutschland
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13
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Kleim BD, Zolotar A, Hinz M, Nadjar R, Siebenlist S, Brunner UH. Pyrocarbon hemiprostheses show little glenoid erosion and good clinical function at 5.5 years of follow-up. J Shoulder Elbow Surg 2024; 33:55-64. [PMID: 37385424 DOI: 10.1016/j.jse.2023.05.027] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/30/2023] [Revised: 05/02/2023] [Accepted: 05/13/2023] [Indexed: 07/01/2023]
Abstract
BACKGROUND The success of traditional shoulder hemiarthroplasty (HA) with cobalt-chromium heads is limited by painful glenoid erosion with problematic bone loss. Hemiprostheses with pyrolytic carbon (PyC) heads have shown reduced glenoid erosion in experimental laboratory studies. Few in vivo data are available. METHODS We performed a single-center consecutive cohort study of 31 of 34 patients (91%) who underwent PyC HA between September 2013 and June 2018. In 11 of these patients, concentric glenoid reaming was additionally performed. The mean follow-up period was 5.5 years (range, 3.5-7 years). Standardized radiographs were taken, and clinical function (Constant score) and pain (visual analog scale score) were recorded. Anteroposterior radiographs were analyzed according to an established method by 2 independent observers: A line parallel to the superior and inferior glenoid rim was translated to the most medial point of the glenoid surface. A further parallel line was placed on the spinoglenoid notch. The distance between these 2 lines was measured. Measurements were scaled using the known diameter of the implanted humeral head component. To assess eccentric erosion, anteroposterior and axial images were classified according to Favard and Walch, respectively. RESULTS Mean medial glenoid erosion measured 1.4 mm at an average of 5.5 years of follow-up. In the first year, 0.8 mm of erosion was observed, significantly more than the average erosion per year of 0.3 mm (P < .001). Mean erosion per year was 0.4 mm in patients with glenoid reaming vs. 0.2 mm in those without reaming (P = .09). An evolution of glenoid morphology was observed in 6 patients, of whom 4 had a progression of the erosion grade. The prosthesis survival rate was 100%. The Constant score improved from 45.0 preoperatively to 78.0 at 2-3 years postoperatively and 78.8 at latest follow-up (5.5 years postoperatively) (P < .001). The pain score on a visual analog scale decreased from 6.7 (range, 3-9) preoperatively to 2.2 (range, 0-8) at latest follow-up (P < .001). There was a weak correlation (r = 0.37) between erosion and pain improvement (P = .039) and no correlation between erosion and change in Constant score (r = 0.06). CONCLUSION PyC HA caused little glenoid erosion and a sustained improvement in clinical function in our cohort at mid-term follow-up. PyC demonstrates a biphasic development of glenoid erosion, with a reduced rate after the first year. PyC HA should therefore be considered as an alternative to cobalt-chromium HA and to anatomical total shoulder arthroplasty for patients with a high risk of glenoid component complications.
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Affiliation(s)
- Benjamin D Kleim
- Department of Sports Orthopaedics, Technical University of Munich, Munich, Germany; Department for Trauma and Orthopaedic Surgery, Agatharied Hospital, Hausham, Germany.
| | - Aleksei Zolotar
- Department for Trauma and Orthopaedic Surgery, Agatharied Hospital, Hausham, Germany
| | - Maximilian Hinz
- Department of Sports Orthopaedics, Technical University of Munich, Munich, Germany
| | - Rudolf Nadjar
- Department for Trauma and Orthopaedic Surgery, Agatharied Hospital, Hausham, Germany
| | - Sebastian Siebenlist
- Department of Sports Orthopaedics, Technical University of Munich, Munich, Germany
| | - Ulrich H Brunner
- Department for Trauma and Orthopaedic Surgery, Agatharied Hospital, Hausham, Germany
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14
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Mehl J, Vieider RP, Siebenlist S. Osteoarticular Open Flake Fracture Refixation: The "Parachute" Technique. Arthrosc Tech 2024; 13:102805. [PMID: 38312865 PMCID: PMC10837770 DOI: 10.1016/j.eats.2023.08.010] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/11/2023] [Accepted: 08/20/2023] [Indexed: 02/06/2024] Open
Abstract
Osteochondral fractures of the patella, also known as "flake fractures," frequently occur after patellar dislocation. In such fractures, a piece of patellar cartilage with subchondral bone breaks off due to patellar dislocation or subsequent reposition. Various surgical techniques have evolved for surgical therapy with the goal of realigning the patellar cartilage. This article presents a cost-effective surgical technique for achieving stable refixation of large osteochondral fragments in patellar flake fractures. The proposed technique entails creating transosseous tunnels in a confluent fashion at the margins, exactly between the fragment and the natural cartilage. Sutures are passed through the established tunnels for flake refixation. This refixation method ensures evenly distributed pressure without penetration of the fragment itself, resulting in the formation of a characteristic parachute configuration composed of confluent bone tunnels and absorbable sutures. The suitability of flake refixation is assessed through an algorithm, allowing for appropriate patient selection. The described technique offers several advantages, including its simplicity and cost-effectiveness, a flexible configuration of the sutures, and the ability to provide stable refixation for large osteochondral fragments.
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Affiliation(s)
- Julian Mehl
- Department of Sports Orthopaedics, Technical University of Munich, Munich, Germany
| | - Romed P. Vieider
- Department of Sports Orthopaedics, Technical University of Munich, Munich, Germany
| | - Sebastian Siebenlist
- Department of Sports Orthopaedics, Technical University of Munich, Munich, Germany
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15
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Siebenlist S, Mehl J. [Ligamentous injuries of the knee]. Unfallchirurgie (Heidelb) 2024; 127:6-7. [PMID: 38214729 DOI: 10.1007/s00113-023-01393-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Accepted: 10/31/2023] [Indexed: 01/13/2024]
Affiliation(s)
- Sebastian Siebenlist
- Sektion Sportorthopädie, Technische Universität München, Ismaninger Str. 22, 81675, München, Deutschland.
| | - Julian Mehl
- Sektion Sportorthopädie, Technische Universität München, Ismaninger Str. 22, 81675, München, Deutschland.
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Breulmann F, Mehl J, Otto A, Lappen S, Siebenlist S, Rab P. [Treatment of osteochondritis dissecans]. Orthopadie (Heidelb) 2024; 53:69-82. [PMID: 38189958 DOI: 10.1007/s00132-023-04461-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Accepted: 11/14/2023] [Indexed: 01/09/2024]
Abstract
Osteochondritis dissecans (OD) is a rare condition with an incidence of 30/100,000. It especially affects male patients aged 10-20 years old. During the staged progression the osteochondral fragments can detach from their base. These can damage the adjacent articular cartilage, which can lead to premature osteoarthritis. Most commonly affected are the knee, ankle and elbow joints. The exact pathogenesis of OD has so far not been clearly confirmed. Several risk factors that can lead to the development of OD are discussed. These include repeated microtrauma and vascularization disorders that can lead to ischemia of the subchondral bone and to a separation of the fragments close to the joint and therefore to the development of free joint bodies. For an adequate clarification patients should undergo a thorough radiological evaluation including X‑ray imaging followed by magnetic resonance imaging (MRI) to assess the integrity of the cartilage-bone formation with determination of the OD stage. The assessment is based on criteria of the International Cartilage Repair Society (ICRS). The instability of the cartilage-bone fragment increases with higher stages. Stages I and II with stable cartilage-bone interconnection can be treated conservatively. For stages III and IV, i.e., instability of the OD fragment or the presence of free fragments, surgical treatment should be performed. Primarily, refixation of a free joint body should be carried out depending on the size and vitality of the fragment. In cases of unsuccessful conservative treatment or fixation, a debridement, if necessary in combination with a bone marrow stimulating procedure, can be employed corresponding to the size of the defect. For larger cartilage defects, an osteochondral graft transplantation should be considered. Overall, OD lesions in stages I and II show a good healing tendency under conservative treatment. In cases of incipient unstable OD, refixation can also lead to good clinical and radiological results.
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Affiliation(s)
- Franziska Breulmann
- Sektion Sportorthopädie, Klinikum rechts der Isar, Technische Universität München, 81675, München, Deutschland
| | - Julian Mehl
- Sektion Sportorthopädie, Klinikum rechts der Isar, Technische Universität München, 81675, München, Deutschland
| | - Alexander Otto
- Sektion Sportorthopädie, Klinikum rechts der Isar, Technische Universität München, 81675, München, Deutschland
| | - Sebastian Lappen
- Sektion Sportorthopädie, Klinikum rechts der Isar, Technische Universität München, 81675, München, Deutschland
| | - Sebastian Siebenlist
- Sektion Sportorthopädie, Klinikum rechts der Isar, Technische Universität München, 81675, München, Deutschland.
| | - Peter Rab
- Sektion Sportorthopädie, Klinikum rechts der Isar, Technische Universität München, 81675, München, Deutschland
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Hinz M, Brunner M, Winkler PW, Sanchez Carbonel JF, Fritsch L, Vieider RP, Siebenlist S, Mehl J. The Posterior Tibial Slope Is Not Associated With Graft Failure and Functional Outcomes After Anatomic Primary Isolated Anterior Cruciate Ligament Reconstruction. Am J Sports Med 2023; 51:3670-3676. [PMID: 37975492 PMCID: PMC10691292 DOI: 10.1177/03635465231209310] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/20/2023] [Accepted: 09/06/2023] [Indexed: 11/19/2023]
Abstract
BACKGROUND Biomechanical studies have shown that an increased medial posterior tibial slope (MPTS) may affect anteroposterior knee laxity and tibial shear forces, ultimately increasing the risk for graft failure after anterior cruciate ligament (ACL) reconstruction. Previous clinical studies have, however, reported inconclusive results. PURPOSE The purpose of this study was to evaluate the relationship between the MPTS and graft failure as well as functional outcomes after anatomic primary isolated ACL reconstruction using a hamstring tendon autograft. It was hypothesized that an increased MPTS would be associated with a higher ACL graft failure rate. Furthermore, a higher MPTS would negatively correlate with functional outcomes in patients without ACL graft failure. STUDY DESIGN Case-control study; Level of evidence, 3. METHODS Consecutive patients who underwent isolated primary ACL reconstruction with an anteromedial portal drilling technique between January 2011 and December 2019 were retrospectively reviewed. The MPTS was measured on preoperative lateral knee radiographs. At a minimum of 24 months postoperatively, the ACL graft failure rate and patient-reported outcome measures (PROM; International Knee Documentation Committee subjective knee form, Lysholm score, Tegner Activity Scale, visual analog scale for pain and subjective instability) were evaluated. Differences in the MPTS between patients with and without ACL graft failure as well as the frequency of graft failure between those with an MPTS <12° and those with an MPTS ≥12° were assessed for statistical significance. Binary logistic regression analysis was performed to stratify the risk of graft failure with the following variables: MPTS, age at surgery, and sex. Correlation analysis was performed to evaluate the relationship between the MPTS and PROM in patients without ACL graft failure. RESULTS In total, 326 patients were included (median follow-up, 71.0 months [IQR, 49.0-104.0 months]). There was no significant difference in the MPTS between patients with and without graft failure (10.6°± 3.2° vs 11.2°± 2.8°, respectively; P = .264). Additionally, there was no significant difference in the frequency of graft failure between patients with an MPTS <12° and those with an MPTS ≥12° (15.6% vs 16.5%, respectively; P = .835). Binary logistic regression showed that younger age at the time of surgery (odds ratio, 1.069 [95% CI, 1.031-1.109]) was associated with graft failure; sex and MPTS were not associated with graft failure. In patients without ACL graft failure, there was no significant correlation between the MPTS and PROM. CONCLUSION In patients who underwent anatomic primary isolated ACL reconstruction, an increased MPTS was not associated with a higher rate of graft failure or inferior functional outcomes. Younger age was a significant nonmodifiable risk factor for ACL graft failure.
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Affiliation(s)
- Maximilian Hinz
- Department of Sports Orthopaedics, Technical University of Munich, Munich, Germany
| | - Moritz Brunner
- Department of Sports Orthopaedics, Technical University of Munich, Munich, Germany
| | - Philipp W. Winkler
- Department of Sports Orthopaedics, Technical University of Munich, Munich, Germany
- Department of Orthopaedics and Traumatology, Kepler University Hospital, Linz, Austria
| | | | - Lorenz Fritsch
- Department of Sports Orthopaedics, Technical University of Munich, Munich, Germany
| | - Romed P. Vieider
- Department of Sports Orthopaedics, Technical University of Munich, Munich, Germany
| | - Sebastian Siebenlist
- Department of Sports Orthopaedics, Technical University of Munich, Munich, Germany
| | - Julian Mehl
- Department of Sports Orthopaedics, Technical University of Munich, Munich, Germany
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Berthold DP, Muench LN, Kadantsev P, Siebenlist S, Scheiderer B, Mazzocca AD, Calvo E, Imhoff AB, Beitzel K, Hinz M. The importance of a structured failure analysis in revision acromioclavicular joint surgery: A multi-rater agreement on the causes of stabilization failure from the ISAKOS shoulder committee. J ISAKOS 2023; 8:425-429. [PMID: 37562575 DOI: 10.1016/j.jisako.2023.08.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2023] [Revised: 07/25/2023] [Accepted: 08/02/2023] [Indexed: 08/12/2023]
Abstract
BACKGROUND Acromioclavicular joint (ACJ) stabilizations are associated with a high overall failure rate with 9.5% of these patients requiring subsequent revision surgery. Consequently, understanding the specific cause of primary ACJ stabilization failure is paramount to improving surgical decision-making in this challenging patient cohort. PURPOSE To (1) identify risk factors and mechanisms for failure following primary arthroscopically-assisted ACJ stabilization to highlight the importance of conducting a detailed failure analysis and to (2) establish revision strategies based on real-life cases of primary failed ACJ stabilization. STUDY DESIGN Level of evidence IV. METHODS A survey was shared internationally among members of the International Society of Arthroscopy, Knee Surgery and Orthopaedic Sports Medicine (ISAKOS) shoulder committee. The survey contained failure analysis of 11 real-life cases of failed primary arthroscopically-assisted ACJ stabilization. For each case, a thorough patient history, standardized radiographs, and CT scans were provided. Participants were asked to give their opinion on bone tunnel placement, cause of failure (biological, technical, traumatic, or combined), the stabilization technique used, as well as give a recommendation for revision. RESULTS Seventeen members of the ISAKOS shoulder committee completed the survey. Biological failure was considered the most common cause of failure (47.1%), followed by technical (35.3%) and traumatic (17.6%) failure. The majority deemed two modifiable factors (i.e., patient's profession and sport) as well as non-modifiable factors (i.e., patient's age and time from trauma to initial surgery) to be risk factors for failure. In 10 of 11 cases, the correct fixation device was used in the primary setting (90.9%; 52.8-82.4% agreement); however, in eight of those cases, the technique was not performed correctly (80.0%; 58.8-100% agreement). In 8 of all 11 cases, the majority recommended an arthroscopically assisted technique with graft augmentation for revision (52.9-58.8% agreement). CONCLUSION Biological failure and technical failure are the most common reason for failure in primary ACJ stabilization followed by traumatic failure. Besides, biological failure can be triggered by technical errors such as clavicular or coracoidal tunnel misplacement. Consequently, a detailed failure analysis including preoperative CT should be conducted on the causes of primary ACJ failure, and, if possible, an arthroscopically-assisted technique with graft augmentation should be prioritized in revision ACJ surgery. CLINICAL RELEVANCE ACJ stabilizations are associated with a high overall failure rate - potentially due to biological and technical properties. When encountering failed arthroscopically-assisted ACJ stabilization, a detailed failure analysis should be conducted on the causes of primary ACJ failure. Furthermore, an arthroscopically-assisted revision stabilization is feasible in most cases.
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Affiliation(s)
- Daniel P Berthold
- Department of Orthopaedics and Trauma Surgery, Musculoskeletal University Center Munich (MUM), University Hospital, LMU, 80336 Munich, Germany; Department of Sports Orthopaedics, Technical University of Munich, 81677 Munich, Germany.
| | - Lukas N Muench
- Department of Sports Orthopaedics, Technical University of Munich, 81677 Munich, Germany
| | - Pavel Kadantsev
- Department of Sports Orthopaedics, Technical University of Munich, 81677 Munich, Germany
| | - Sebastian Siebenlist
- Department of Sports Orthopaedics, Technical University of Munich, 81677 Munich, Germany
| | - Bastian Scheiderer
- Department of Sports Orthopaedics, Technical University of Munich, 81677 Munich, Germany
| | - Augustus D Mazzocca
- Massachusetts General Hospital, Massachusetts General Brigham, Harvard Medical School, Boston, MA 02115, USA
| | - Emilio Calvo
- Shoulder and Elbow Reconstructive Surgery Unit, Department of Orthopedic Surgery and Traumatology, Hospital Universitario Fundación Jiménez Díaz, 28040 Madrid, Spain
| | - Andreas B Imhoff
- Department of Sports Orthopaedics, Technical University of Munich, 81677 Munich, Germany
| | - Knut Beitzel
- Department of Sports Orthopaedics, Technical University of Munich, 81677 Munich, Germany; Department of Shoulder Surgery, ATOS Clinic, 50858 Cologne, Germany
| | - Maximilian Hinz
- Department of Sports Orthopaedics, Technical University of Munich, 81677 Munich, Germany
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Rupp MC, Khan ZA, Dasari SP, Berthold DP, Siebenlist S, Imhoff AB, Chahla J, Pogorzelski J. Establishing the Minimal Clinically Important Difference and Patient Acceptable Symptomatic State following Patellofemoral Inlay Arthroplasty for Visual Analog Scale Pain, Western Ontario and McMaster Universities Arthritis Index, and Lysholm Scores. J Arthroplasty 2023; 38:2580-2586. [PMID: 37286052 DOI: 10.1016/j.arth.2023.05.084] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/03/2022] [Revised: 05/26/2023] [Accepted: 05/29/2023] [Indexed: 06/09/2023] Open
Abstract
BACKGROUND The purposes of the study were to define the minimal clinically important difference (MCID) and patient acceptable symptomatic state (PASS) after patello-femoral inlay arthroplasty (PFA) and to identify factors predictive for the achievement of clinically important outcomes (CIOs). METHODS A total of 99 patients who underwent PFA between 2009 and 2019 and had a minimum of 2-year postoperative follow-up were enrolled in this retrospective monocentric study. Included patients had a mean age of 44 years (range, 21 to 79). The MCID and PASS were calculated using an anchor-based approach for the visual analog scale (VAS) pain, Western Ontario and McMaster Universities Arthritis Index (WOMAC), and Lysholm patient-reported outcome measures. Factors associated with CIO achievement were determined using multivariable logistic regression analyses. RESULTS The established MCID thresholds for clinical improvement were -2.46 for the VAS pain score, -8.5 for the WOMAC score, and + 25.4 for the Lysholm score. Postoperative scores corresponding to the PASS were <2.55 for the VAS pain score, <14.6 for the WOMAC score, and >52.5 points for the Lysholm score. Preoperative patellar instability and concomitant medial patello-femoral ligament reconstruction were independent positive predictors of reaching both MCID and PASS. Additionally, inferior baseline scores and age were predictive of achieving MCID, whereas superior baseline scores and body mass index were predictive of achieving PASS. CONCLUSION This study determined the thresholds of MCID and PASS for the VAS pain, WOMAC, and Lysholm scores following PFA implantation at 2-year follow-up. The study demonstrated a predictive role of patient age, body mass index, preoperative patient-reported outcome measure scores, preoperative patellar instability, and concomitant medial patello-femoral ligament reconstruction in the achievement of CIOs. LEVEL OF EVIDENCE Prognostic Level IV.
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Affiliation(s)
- Marco-Christopher Rupp
- Department of Orthopaedic Sports Medicine, Klinikum rechts der Isar, Technical University of Munich, Munich, Germany
| | - Zeeshan A Khan
- Midwest Orthopaedics at Rush, Department of Orthopaedic Surgery, Rush University Medical Center, Chicago, Illinois
| | - Suhas P Dasari
- Midwest Orthopaedics at Rush, Department of Orthopaedic Surgery, Rush University Medical Center, Chicago, Illinois
| | - Daniel P Berthold
- Department of Orthopaedic Sports Medicine, Klinikum rechts der Isar, Technical University of Munich, Munich, Germany; Department of Orthopaedics and Trauma Surgery, Musculoskeletal University Center Munich (MUM), University Hospital, LMU Munich, Munich, Germany
| | - Sebastian Siebenlist
- Department of Orthopaedic Sports Medicine, Klinikum rechts der Isar, Technical University of Munich, Munich, Germany
| | - Andreas B Imhoff
- Department of Orthopaedic Sports Medicine, Klinikum rechts der Isar, Technical University of Munich, Munich, Germany
| | - Jorge Chahla
- Midwest Orthopaedics at Rush, Department of Orthopaedic Surgery, Rush University Medical Center, Chicago, Illinois
| | - Jonas Pogorzelski
- Department of Orthopaedic Sports Medicine, Klinikum rechts der Isar, Technical University of Munich, Munich, Germany
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Kleim BD, Lappen S, Kadantsev P, Degenhardt H, Fritsch L, Siebenlist S, Hinz M. Validation of a novel 3-dimensional classification for degenerative arthritis of the shoulder. Arch Orthop Trauma Surg 2023; 143:6159-6166. [PMID: 37308783 PMCID: PMC10491688 DOI: 10.1007/s00402-023-04890-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/21/2023] [Accepted: 04/13/2023] [Indexed: 06/14/2023]
Abstract
INTRODUCTION A novel three-dimensional classification to comprehensively describe degenerative arthritis of the shoulder (DAS) was recently published by our group. The purpose of the present work was to investigate intra- and interobserver agreement as well as validity for the three-dimensional classification. MATERIALS AND METHODS Preoperative computed tomography (CT) scans of 100 patients who had undergone shoulder arthroplasty for DAS were randomly selected. Four observers independently classified the CT scans twice, with an interval of 4 weeks, after prior three-dimensional reconstruction of the scapula plane using a clinical image viewing software. Shoulders were classified according to biplanar humeroscapular alignment as posterior, centered or anterior (> 20% posterior, centered, > 5% anterior subluxation of humeral head radius) and superior, centered or inferior (> 5% inferior, centered, > 20% superior subluxation of humeral head radius). Glenoid erosion was graded 1-3. Gold-standard values based on precise measurements from the primary study were used for validity calculations. Observers timed themselves during classification. Cohen's weighted κ was employed for agreement analysis. RESULTS Intraobserver agreement was substantial (κ = 0.71). Interobserver agreement was moderate with a mean κ of 0.46. When the additional descriptors extra-posterior and extra-superior were included, agreement did not change substantially (κ = 0.44). When agreement for biplanar alignment alone was analyzed, κ was 0.55. The validity analysis reached moderate agreement (κ = 0.48). Observers took on average 2 min and 47 s (range 45 s to 4 min and 1 s) per CT for classification. CONCLUSIONS The three-dimensional classification for DAS is valid. Despite being more comprehensive, the classification shows intra- and interobserver agreement comparable to previously established classifications for DAS. Being quantifiable, this has potential for improvement with automated algorithm-based software analysis in the future. The classification can be applied in under 5 min and thus can be used in clinical practice.
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Affiliation(s)
- Benjamin D Kleim
- Department of Sports Orthopaedics, Technical University of Munich, Ismaninger Str 22, 81675, Munich, Germany.
| | - Sebastian Lappen
- Department of Sports Orthopaedics, Technical University of Munich, Ismaninger Str 22, 81675, Munich, Germany
| | - Pavel Kadantsev
- Department of Sports Orthopaedics, Technical University of Munich, Ismaninger Str 22, 81675, Munich, Germany
| | - Hannes Degenhardt
- Department of Sports Orthopaedics, Technical University of Munich, Ismaninger Str 22, 81675, Munich, Germany
| | - Lorenz Fritsch
- Department of Sports Orthopaedics, Technical University of Munich, Ismaninger Str 22, 81675, Munich, Germany
| | - Sebastian Siebenlist
- Department of Sports Orthopaedics, Technical University of Munich, Ismaninger Str 22, 81675, Munich, Germany
| | - Maximilian Hinz
- Department of Sports Orthopaedics, Technical University of Munich, Ismaninger Str 22, 81675, Munich, Germany
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21
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Kleim BD, Lappen S, Kadantsev P, Degenhardt H, Fritsch L, Siebenlist S, Hinz M. Correction to: Validation of a novel 3‑dimensional classification for degenerative arthritis of the shoulder. Arch Orthop Trauma Surg 2023; 143:6167. [PMID: 37528190 PMCID: PMC10491693 DOI: 10.1007/s00402-023-04995-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 08/03/2023]
Affiliation(s)
- Benjamin D Kleim
- Department of Sports Orthopaedics, Technical University of Munich, Ismaninger Str 22, 81675, Munich, Germany.
| | - Sebastian Lappen
- Department of Sports Orthopaedics, Technical University of Munich, Ismaninger Str 22, 81675, Munich, Germany
| | - Pavel Kadantsev
- Department of Sports Orthopaedics, Technical University of Munich, Ismaninger Str 22, 81675, Munich, Germany
| | - Hannes Degenhardt
- Department of Sports Orthopaedics, Technical University of Munich, Ismaninger Str 22, 81675, Munich, Germany
| | - Lorenz Fritsch
- Department of Sports Orthopaedics, Technical University of Munich, Ismaninger Str 22, 81675, Munich, Germany
| | - Sebastian Siebenlist
- Department of Sports Orthopaedics, Technical University of Munich, Ismaninger Str 22, 81675, Munich, Germany
| | - Maximilian Hinz
- Department of Sports Orthopaedics, Technical University of Munich, Ismaninger Str 22, 81675, Munich, Germany
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22
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Geyer S, Kadantsev P, Bohnet D, Marx C, Vieider RP, Braun S, Siebenlist S, Lappen S. Partial ruptures of the distal triceps tendons show only slightly lower ultimate load to failure: a biomechanical study. BMC Musculoskelet Disord 2023; 24:590. [PMID: 37468862 PMCID: PMC10357868 DOI: 10.1186/s12891-023-06720-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/18/2023] [Accepted: 07/14/2023] [Indexed: 07/21/2023] Open
Abstract
OBJECTIVE Partial ruptures of the distal triceps tendon are usually treated surgically from a size of > 50% tendon involvement. The aim of this study was to compare the ultimate load to failure of intact triceps tendons with partially ruptured tendons and describe the rupture mechanism. METHODS Eighteen human fresh-frozen cadaveric elbow specimens were randomly assigned to two groups with either an intact distal triceps tendon or with a simulated partial rupture of 50% of the tendon. A continuous traction on the distal triceps tendon was applied to provoke a complete tendon rupture. The maximum required ultimate load to failure of the tendon in N was measured. In addition, video recordings of the ruptures of the intact tendons were performed and analysed by two independent investigators. RESULTS A median ultimate load to failure of 1,390 N (range Q0.25-Q0.75, 954 - 2,360) was measured in intact distal triceps tendons. The median ultimate load to failure of the partially ruptured tendons was 1,330 N (range Q0.25-Q0.75, 1,130 - 1.470 N). The differences were not significant. All recorded ruptures began in the superficial tendon portion, and seven out of nine tendons in the lateral tendon portion. DISCUSSION Partial ruptures of the distal triceps tendon demonstrate a not statistically significant lower ultimate load to failure than intact tendons and typically occur in the superficial, lateral portion of the tendon. This finding can be helpful when deciding between surgical and conservative therapy for partial ruptures of the distal triceps tendon.
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Affiliation(s)
- Stephanie Geyer
- Department of Sports Orthopeadics, Technical University of Munich, Klinikum Rechts Der Isar, Ismaninger Straße 22, Munich, 81675, Germany
- St. Vinzenz Kliniken Pfronten Im Allgäu, Pfronten, Germany
| | - Pavel Kadantsev
- Department of Sports Orthopeadics, Technical University of Munich, Klinikum Rechts Der Isar, Ismaninger Straße 22, Munich, 81675, Germany
| | - Daniel Bohnet
- Department of Sports Orthopeadics, Technical University of Munich, Klinikum Rechts Der Isar, Ismaninger Straße 22, Munich, 81675, Germany
| | - Christian Marx
- UMIT - Private Universität für Gesundheitswissenschaften, Medizinische Informatik und Technik, Private University Hall, Hall/Tirol, Austria
| | - Romed P Vieider
- Department of Sports Orthopeadics, Technical University of Munich, Klinikum Rechts Der Isar, Ismaninger Straße 22, Munich, 81675, Germany
| | - Sepp Braun
- UMIT - Private Universität für Gesundheitswissenschaften, Medizinische Informatik und Technik, Private University Hall, Hall/Tirol, Austria
- Gelenkpunkt - Sports and Joint Surgery Innsbruck, Innsbruck, Austria
| | - Sebastian Siebenlist
- Department of Sports Orthopeadics, Technical University of Munich, Klinikum Rechts Der Isar, Ismaninger Straße 22, Munich, 81675, Germany.
| | - Sebastian Lappen
- Department of Sports Orthopeadics, Technical University of Munich, Klinikum Rechts Der Isar, Ismaninger Straße 22, Munich, 81675, Germany
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Muench LN, Rupp MC, Obopilwe E, Mehl J, Scheiderer B, Siebenlist S, Elhassan BT, Mazzocca AD, Berthold DP. Physiological Tensioning During Lower Trapezius Transfer for Irreparable Posterosuperior Rotator Cuff Tears May Be Important for Improvement in Shoulder Kinematics. Am J Sports Med 2023; 51:2422-2430. [PMID: 37318086 PMCID: PMC10353027 DOI: 10.1177/03635465231179693] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/18/2022] [Accepted: 04/28/2023] [Indexed: 06/16/2023]
Abstract
BACKGROUND Lower trapezius transfer (LTT) has been proposed for restoring the anteroposterior muscular force couple in the setting of an irreparable posterosuperior rotator cuff tear (PSRCT). Adequate graft tensioning during surgery may be a factor critical for sufficient restoration of shoulder kinematics and functional improvement. PURPOSE/HYPOTHESIS The purpose was to evaluate the effect of tensioning during LTT on glenohumeral kinematics using a dynamic shoulder model. It was hypothesized that LTT, while maintaining physiological tension on the lower trapezius muscle, would improve glenohumeral kinematics more effectively than undertensioned or overtensioned LTT. STUDY DESIGN Controlled laboratory study. METHODS A total of 10 fresh-frozen cadaveric shoulders were tested using a validated shoulder simulator. Glenohumeral abduction angle, superior migration of the humeral head, and cumulative deltoid force were compared across 5 conditions: (1) native, (2) irreparable PSRCT, (3) LTT with a 12-N load (undertensioned), (4) LTT with a 24-N load (physiologically tensioned according to the cross-sectional area ratio of the lower trapezius muscle), and (5) LTT with a 36-N load (overtensioned). Glenohumeral abduction angle and superior migration of the humeral head were measured using 3-dimensional motion tracking. Cumulative deltoid force was recorded in real time throughout dynamic abduction motion by load cells connected to actuators. RESULTS Physiologically tensioned (Δ13.1°), undertensioned (Δ7.3°), and overtensioned (Δ9.9°) LTT each significantly increased the glenohumeral abduction angle compared with the irreparable PSRCT (P < .001 for all). Physiologically tensioned LTT achieved a significantly greater glenohumeral abduction angle than undertensioned LTT (Δ5.9°; P < .001) or overtensioned LTT (Δ3.2°; P = .038). Superior migration of the humeral head was significantly decreased with LTT compared with the PSRCT, regardless of tensioning. Physiologically tensioned LTT resulted in significantly less superior migration of the humeral head compared with undertensioned LTT (Δ5.3 mm; P = .004). A significant decrease in cumulative deltoid force was only observed with physiologically tensioned LTT compared with the PSRCT (Δ-19.2 N; P = .044). However, compared with the native state, LTT did not completely restore glenohumeral kinematics, regardless of tensioning. CONCLUSION LTT was most effective in improving glenohumeral kinematics after an irreparable PSRCT when maintaining physiological tension on the lower trapezius muscle at time zero. However, LTT did not completely restore native glenohumeral kinematics, regardless of tensioning. CLINICAL RELEVANCE Tensioning during LTT for an irreparable PSRCT may be important to sufficiently improve glenohumeral kinematics and may be an intraoperatively modifiable key variable to ensure postoperative functional success.
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Affiliation(s)
- Lukas N. Muench
- Department of Sports Orthopaedics, Technical University of Munich, Munich, Germany
- Department of Orthopedics & Sports Medicine, University of Connecticut, Farmington, Connecticut, USA
| | | | - Elifho Obopilwe
- Department of Orthopedics & Sports Medicine, University of Connecticut, Farmington, Connecticut, USA
| | - Julian Mehl
- Department of Sports Orthopaedics, Technical University of Munich, Munich, Germany
| | - Bastian Scheiderer
- Department of Sports Orthopaedics, Technical University of Munich, Munich, Germany
| | - Sebastian Siebenlist
- Department of Sports Orthopaedics, Technical University of Munich, Munich, Germany
| | - Bassem T. Elhassan
- Massachusetts General Hospital, Harvard Medical School, Boston, Massachusetts, USA
| | - Augustus D. Mazzocca
- Massachusetts General Hospital, Harvard Medical School, Boston, Massachusetts, USA
| | - Daniel P. Berthold
- Department of Sports Orthopaedics, Technical University of Munich, Munich, Germany
- Department of Orthopedics & Sports Medicine, University of Connecticut, Farmington, Connecticut, USA
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Lacheta L, Siebenlist S, Scheiderer B, Beitzel K, Woertler K, Imhoff AB, Buchmann S, Willinger L. Intact revision rotator cuff repair stabilizes muscle atrophy and fatty infiltration after minimum follow up of two years. BMC Musculoskelet Disord 2023; 24:515. [PMID: 37353825 DOI: 10.1186/s12891-023-06616-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/14/2022] [Accepted: 06/09/2023] [Indexed: 06/25/2023] Open
Abstract
BACKGROUND The extent of fatty infiltration and rotator cuff (RC) atrophy is crucial for the clinical results after rotator cuff repair (RCR). The purpose of this study was to evaluate changes in fatty infiltration and RC atrophy after revision RCR and to correlate them with functional outcome parameters. METHODS Patients who underwent arthroscopic revision RCR for symptomatic recurrent full-thickness tear of the supraspinatus tendon between 2008 and 2014 and were retrospectively reviewed with a minimum follow up of 2 years. Magnetic resonance imaging (MRI) was performed pre- and postoperatively to assess 1) tendon integrity after revision RCR according to Sugaya classification, (2) RC atrophy according to Thomazeau classification, and (3) fatty infiltration according to Fuchs MRI classification. Constant score (CS) and the American Shoulder and Elbow Surgeon (ASES) score were used to correlate functional outcome, tendon integrity, and muscle degeneration. RESULTS 19 patients (17 males and 2 females) with a mean age of 57.5 years (range, 34 to 72) were included into the study at a mean follow-up of 50.3 months (range, 24 - 101). At final evaluation, 9 patients (47%) presented with intact RCR and 10 patients (53%) suffered a re-tear after revision repair. No progress of fatty infiltration was observed postoperatively in the group with intact RC, atrophy progressed in only 1 out of 9 patient (11%). Fatty infiltration progressed in 5/10 patients (50%) and RC atrophy increased in 2/10 patients (20%) within the re-tear group. CS (42.7 ± 17.7 preop, 65.2 ± 20.1 postop) and ASES (47.7 ± 17.2 preop, 75.4 ± 23.7 postop) improved significantly from pre- to postoperatively (p < 0.001). A positive correlation between fatty infiltration and RC integrity was detected (r = 0.77, p < 0.01). No correlation between clinical outcome and tendon integrity or RC atrophy was observed. CONCLUSION Arthroscopic revision RCR leads to reliable functional outcomes even in case of a recurrent RC retear. An intact RCR maintains the preoperative state of fatty infiltration and muscle atrophy but does not lead to muscle regeneration. LEVEL OF EVIDENCE Level IV; Therapeutic study.
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Affiliation(s)
- Lucca Lacheta
- Department of Orthopaedic Sports Medicine, Technical University of Munich, Ismaninger Str. 22, 81675, Munich, Germany
| | - Sebastian Siebenlist
- Department of Orthopaedic Sports Medicine, Technical University of Munich, Ismaninger Str. 22, 81675, Munich, Germany
| | - Bastian Scheiderer
- Department of Orthopaedic Sports Medicine, Technical University of Munich, Ismaninger Str. 22, 81675, Munich, Germany
| | - Knut Beitzel
- Department of Orthopaedic Sports Medicine, Technical University of Munich, Ismaninger Str. 22, 81675, Munich, Germany
- ATOS Orthoparc Klinik, Cologne, Germany
| | - Klaus Woertler
- Musculoskeletal Radiology Section, TUM School of Medicine, Technical University of Munich, Ismaninger Str. 22, 81675, Munich, Germany
| | - Andreas B Imhoff
- Department of Orthopaedic Sports Medicine, Technical University of Munich, Ismaninger Str. 22, 81675, Munich, Germany
| | - Stefan Buchmann
- Department of Orthopaedic Sports Medicine, Technical University of Munich, Ismaninger Str. 22, 81675, Munich, Germany
- Orthopaedisches Fachzentrum (OFZ) Weilheim/Garmisch/Starnberg/Penzberg, Weilheim, Germany
| | - Lukas Willinger
- Department of Orthopaedic Sports Medicine, Technical University of Munich, Ismaninger Str. 22, 81675, Munich, Germany.
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Otto A, Muench LN, Mehl J, Baldino JB, Murphy M, Obopilwe E, Cote MP, Scheiderer B, Imhoff AB, Mazzocca AD, Siebenlist S. Dual Bracing for Ulnar Collateral Ligament Injuries Restores Native Valgus Laxity and Native Medial Joint Gapping of the Elbow. Orthop J Sports Med 2023; 11:23259671231179179. [PMID: 37378277 PMCID: PMC10291402 DOI: 10.1177/23259671231179179] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/29/2023] [Accepted: 02/26/2023] [Indexed: 06/29/2023] Open
Abstract
Background Despite growing evidence on the role of the posterior ulnar collateral ligament (pUCL) in elbow stability, current ligament bracing techniques are mainly focused on the anterior ulnar collateral ligament (aUCL). A dual-bracing technique combines the repair of the pUCL and aUCL with a suture augmentation of both bundles. Purpose To biomechanically assess a dual-bracing approach addressing aUCL and pUCL for humeral-sided complete UCL lesions to restore medial elbow laxity without overconstraining. Study Design Controlled laboratory study. Methods A total of 21 unpaired human elbows (11 right, 10 left; 57.19 ± 11.7 years) were randomized into 3 groups to compare dual bracing with aUCL suture augmentation and aUCL graft reconstruction. Laxity testing was performed with 25 N applied 12 cm distal to the elbow joint for 30 seconds at randomized flexion angles (0°, 30°, 60°, 90°, and 120°) for the native condition and then for each surgical technique. A calibrated motion capture system was used for assessment, allowing the 3-dimensional displacement during the complete valgus stress cycle between the optical trackers to be quantified as joint gap and laxity. The repaired constructs were then cyclically tested through a materials testing machine starting with 20 N for 200 cycles at a rate of 0.5 Hz. The load was increased stepwise by 10 N for 200 cycles until displacement reached 5.0 mm or complete failure occurred. Results Dual bracing and aUCL bracing resulted in significantly (P = .045) less joint gapping at 120° of flexion compared with aUCL reconstruction. No significant differences in valgus laxity were found among the surgical techniques. Within each technique, there were no significant differences between the native and the postoperative state in valgus laxity and joint gapping. No significant differences between the techniques were observed in cycles to failure and failure load. Conclusion Dual bracing restored native valgus joint laxity and medial joint gapping without overconstraining and provided similar primary stability regarding failure outcomes as established techniques. Furthermore, it was able to restore joint gapping in 120° of flexion significantly better than aUCL reconstruction. Clinical Relevance This study provides biomechanical data on the dual-bracing approach that may help surgeons to consider this new method of addressing acute humeral UCL lesions.
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Affiliation(s)
- Alexander Otto
- Department of Sports Orthopedics, Technical University of Munich, Munich, Germany
| | - Lukas N. Muench
- Department of Sports Orthopedics, Technical University of Munich, Munich, Germany
| | - Julian Mehl
- Department of Sports Orthopedics, Technical University of Munich, Munich, Germany
| | - Joshua B. Baldino
- Department of Orthopaedic Surgery, UConn Musculoskeletal Institute, University of Connecticut, Farmington, Connecticut, USA
| | - Matthew Murphy
- Beaumont Orthopedic Institute Royal Oak, Royal Oak, Michigan, USA
| | - Elifho Obopilwe
- Department of Orthopaedic Surgery, UConn Musculoskeletal Institute, University of Connecticut, Farmington, Connecticut, USA
| | - Mark P. Cote
- Department of Orthopaedic Surgery, Massachusetts General Hospital, Boston, Massachusetts, USA
- Harvard Medical School, Boston, Massachusetts, USA
| | - Bastian Scheiderer
- Department of Sports Orthopedics, Technical University of Munich, Munich, Germany
| | - Andreas B. Imhoff
- Department of Sports Orthopedics, Technical University of Munich, Munich, Germany
| | - Augustus D. Mazzocca
- Department of Orthopaedic Surgery, Massachusetts General Hospital, Boston, Massachusetts, USA
- Harvard Medical School, Boston, Massachusetts, USA
| | - Sebastian Siebenlist
- Department of Sports Orthopedics, Technical University of Munich, Munich, Germany
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Hinz M, Franz A, Pirker C, Traimer S, Lappen S, Doucas A, Siebenlist S. [Blood flow restriction training as a treatment option for lateral elbow tendinopathy-a study presentation]. Orthopadie (Heidelb) 2023; 52:365-370. [PMID: 37079041 DOI: 10.1007/s00132-023-04370-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Accepted: 03/13/2023] [Indexed: 04/21/2023]
Abstract
Blood flow restriction training, developed in 1966 in Japan, is a training modality that utilizes partial arterial and complete venous blood flow occlusion. Combined with low load resistance training, it aims to induce hypertrophy and strength gains. This makes it particularly suitable for people recovering from injury or surgery, for whom the use of high training loads is unfeasible. In this article, the mechanism behind blood flow restriction training and its applicability for the treatment of lateral elbow tendinopathy is explained. An ongoing prospective, randomized, controlled trial on the treatment of lateral elbow tendinopathy is presented.
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Affiliation(s)
- Maximilian Hinz
- Sektion Sportorthopädie, Technische Universität München, München, Deutschland.
| | - Alexander Franz
- Klinik und Poliklinik für Orthopädie und Unfallchirurgie, Universitätsklinikum Bonn, Bonn, Deutschland
| | - Christina Pirker
- Physiotherapie, Sektion Sportorthopädie, Technische Universität München, München, Deutschland
| | - Sophie Traimer
- Physiotherapie, Sektion Sportorthopädie, Technische Universität München, München, Deutschland
| | - Sebastian Lappen
- Sektion Sportorthopädie, Technische Universität München, München, Deutschland
| | - Alexandros Doucas
- Sektion Sportorthopädie, Technische Universität München, München, Deutschland
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Thiele K, Unmann A, Akgün D, Schoch C, Geyer S, Thiele H, Mader K, Siebenlist S. [Infiltration therapies for lateral epicondylopathy]. Orthopadie (Heidelb) 2023; 52:379-386. [PMID: 37074369 DOI: 10.1007/s00132-023-04371-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Accepted: 03/13/2023] [Indexed: 04/20/2023]
Abstract
The therapy of the lateral epicondylopathy (tennis elbow) includes drug injection into the extensor tendon insertion in chronic cases. The choice of medication and the type of injection is decisive for the success of therapy. Furthermore, accurate application is indispensable for therapy success (e.g. peppering injection technique, ultrasound-supported injection technique). Corticosteroid injection is often associated with short-term success, so that other options have found their way into everyday practice. Objectification of treatment success is usually defined by Patient-Reported Outcome Measurements (PROM). With the introduction of Minimal Clinically Important Differences (MCID), statistically significant results are put into perspective in terms of clinical significance. Therapy for lateral epicondylopathy was considered effective if the mean difference in score results between baseline and follow-up exceeded 1.5 points for the Visual Analogue Scale (VAS), 16 points for Disabilities of Arm, Shoulder and Hand Score (DASH), 11 points for Patient-Rated Tennis Elbow Evaluation (PRTEE), and 15 points for Mayo Elbow Performance Score (MEPS). However, the effectiveness must still be critically questioned according to meta-analytical evaluations, in which healing within 12 months was found in 90% of the cases of untreated chronic tennis elbow in the placebo groups. The use of substances, such as Traumeel (Biologische Heilmittel Heel GmbH, Baden-Baden, Germany), hyaluronic acid, botulinum toxin, platelet rich plasma (PRP), autologous blood or polidocanol, are based on various mechanisms. In particular, the use of PRP or autologous blood for the treatment of musculotendinous and degenerative articular pathologies has become popular, although the studies regarding effectiveness are inconsistent. PRP can be divided into leukocyte-rich (LR-PRP) and leukocyte-poor plasma (LP-PRP) according to its preparation. In contrast to LP-PRP, LR-PRP incorporates the middle and intermediate layers, but there is no standardized preparation described in the literature. Conclusive data regarding effective efficacy are still pending.
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Affiliation(s)
- Kathi Thiele
- Centrum für Muskuloskeletale Chirurgie, Charité Universitätsmedizin Berlin, Augustenburger Platz 1, 13353, Berlin, Deutschland.
- Auguste Viktoria Krankenhaus, Klinik für Schulterchirurgie, Rubensstrasse 125, Berlin, Deutschland.
| | - Annemarie Unmann
- Centrum für Muskuloskeletale Chirurgie, Charité Universitätsmedizin Berlin, Augustenburger Platz 1, 13353, Berlin, Deutschland
- LKH Feldbach, Feldbach, Österreich
| | - Doruk Akgün
- Centrum für Muskuloskeletale Chirurgie, Charité Universitätsmedizin Berlin, Augustenburger Platz 1, 13353, Berlin, Deutschland
| | | | - Stephanie Geyer
- St. Vinzenz Klinik Pfronten, Pfronten, Deutschland
- Klinikum rechts der Isar, München, Deutschland
| | | | - Konrad Mader
- Universitätsklinikum Hamburg-Eppendorf, Hamburg, Deutschland
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Lappen S, Siebenlist S. [Arthroscopic debridement of the extensor carpi radialis brevis]. Orthopadie (Heidelb) 2023; 52:387-393. [PMID: 37059831 DOI: 10.1007/s00132-023-04373-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Accepted: 03/13/2023] [Indexed: 04/16/2023]
Abstract
Surgical treatment of lateral epicondylitis is reserved for patients who, despite extensive conservative therapy, do not experience satisfactory relief of symptoms. As an alternative to the open procedure, arthroscopic debridement of the extensor carpi radialis brevis (ECRB) muscle is a simple and standardized procedure. The arthroscopic approach also enables the additional treatment of intra-articular pathologies such as loose bodies or osteochondral lesions. After diagnostic arthroscopy, the attachment of the ECRB is visualized via the anteromedial portal, so that under visual control the debridement of the tendon fibers of the ECRB and its bony insertion site can be performed via the anterolateral portal. Postoperatively, there is no restriction of movement of the elbow joint. The outcome after arthroscopic ECRB debridement described in the literature is equivalent to that of other surgical techniques.
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Affiliation(s)
- Sebastian Lappen
- Sektion Sportorthopädie, Klinikum rechts der Isar, Technische Universität München, Ismaninger Str. 22, 81675, München, Deutschland
| | - Sebastian Siebenlist
- Sektion Sportorthopädie, Klinikum rechts der Isar, Technische Universität München, Ismaninger Str. 22, 81675, München, Deutschland.
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Thiele K, Siebenlist S. [Epicondylopathia humeri radialis et medialis-pain today, cure tomorrow?]. Orthopadie (Heidelb) 2023; 52:347-348. [PMID: 37017691 DOI: 10.1007/s00132-023-04376-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Subscribe] [Scholar Register] [Accepted: 03/13/2023] [Indexed: 04/06/2023]
Affiliation(s)
- Kathi Thiele
- Centrum für Muskuloskeletale Chirurgie, Charité Universitätsmedizin Berlin, Augustenburger Platz 1, 13353, Berlin, Deutschland.
| | - Sebastian Siebenlist
- Sektion Sportorthopädie, Klinikum rechts der Isar, Technische Universität München, Ismaningerstraße 22, 81675, München, Deutschland
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Geyer S, Siebler J, Eggers F, Münch LN, Berthold DP, Imhoff AB, Siebenlist S, Scheiderer B. Influence of sportive activity on functional and radiographic outcomes following reverse total shoulder arthroplasty: a comparative study. Arch Orthop Trauma Surg 2023; 143:1809-1816. [PMID: 35092467 PMCID: PMC10030429 DOI: 10.1007/s00402-022-04344-1] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/03/2021] [Accepted: 01/03/2022] [Indexed: 02/09/2023]
Abstract
BACKGROUND The purpose of the present study was to compare the functional and radiographic outcomes following reverse total shoulder arthroplasty (RTSA) in a senior athletic and non-athletic population. MATERIAL AND METHODS In this retrospective cohort study, patients who underwent RTSA between 06/2013 and 04/2018 at a single institution were included. Minimum follow-up was 2 years. A standardized questionnaire was utilized for assessment of patients' pre- and postoperative physical fitness and sportive activity. Patients who resumed at least one sport were assigned to the athletic group, while patients who ceased participating in sports were assigned to the non-athletic group. Postoperative clinical outcome measures included the Constant score (CS), American Shoulder and Elbow Surgeons (ASES) score, Simple Shoulder Test (SST), and visual analog scale (VAS) for pain. Active shoulder range of motion (ROM) and abduction strength were assessed. Radiographic evaluation was based on a standardized core set of parameters for radiographic monitoring of patients following shoulder arthroplasty. RESULTS Sixty-one of 71 patients (85.9%; mean age: 72.1 ± 6.6 years) were available for clinical and radiographic follow-up at a mean of 47.1 ± 18.1 months. Thirty-four patients (55.7%) were assigned to the athletic group and 27 patients (44.3%) to the non-athletic group. The athletic group demonstrated significantly better results for CS (P = 0.002), ASES score (P = 0.001), SST (P = 0.001), VAS (P = 0.022), active external rotation (P = 0.045) and abduction strength (P = 0.016) compared to the non-athletic group. The overall rate of return to sport was 78.0% at an average of 5.3 ± 3.6 months postoperatively. Incomplete radiolucent lines (RLL) around the humeral component were found significantly more frequently in the athletic group compared to the non-athletic group (P = 0.019), whereas the occurrence of complete RLLs around the implant components was similar (P = 0.382). Scapular notching was observed in 18 patients (52.9%) of the athletic group and 12 patients (44.9%) of the non-athletic group (P = 0.51). The overall rate for revision surgery was 8.2%, while postoperative complications were encountered in 3.3% of cases. CONCLUSION At mid-term follow-up, the athletic population demonstrated significantly better clinical results following RTSA without a higher rate of implant loosening and scapular notching when compared to non-athletic patients. However, incomplete radiolucency around the humeral component was observed significantly more often in the athletic group. LEVEL OF EVIDENCE III.
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Affiliation(s)
- Stephanie Geyer
- Department of Orthopaedic Sports Medicine, Technical University of Munich, Ismaninger Str. 22, 81675, Munich, Germany
| | - Jakob Siebler
- Department of Orthopaedic Sports Medicine, Technical University of Munich, Ismaninger Str. 22, 81675, Munich, Germany
| | - Felipe Eggers
- Department of Orthopaedic Sports Medicine, Technical University of Munich, Ismaninger Str. 22, 81675, Munich, Germany
| | - Lukas N Münch
- Department of Orthopaedic Sports Medicine, Technical University of Munich, Ismaninger Str. 22, 81675, Munich, Germany
| | - Daniel P Berthold
- Department of Orthopaedic Sports Medicine, Technical University of Munich, Ismaninger Str. 22, 81675, Munich, Germany
| | - Andreas B Imhoff
- Department of Orthopaedic Sports Medicine, Technical University of Munich, Ismaninger Str. 22, 81675, Munich, Germany
| | - Sebastian Siebenlist
- Department of Orthopaedic Sports Medicine, Technical University of Munich, Ismaninger Str. 22, 81675, Munich, Germany
| | - Bastian Scheiderer
- Department of Orthopaedic Sports Medicine, Technical University of Munich, Ismaninger Str. 22, 81675, Munich, Germany.
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Lobenhoffer P, Siebenlist S. Arthroscopic treatment of intraarticular fractures of the upper und lower extremity. Arthroskopie 2023. [DOI: 10.1007/s00142-023-00600-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/09/2023]
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Plath J, Otto A, Förch S, Siebenlist S, Grosser B, Mayr E, Imhoff AB, Lenich A. Arthroscopic rod technique compared to stress ultrasound in the dynamic evaluation of lateral ligament instabilities of the elbow. Arch Orthop Trauma Surg 2023; 143:2087-2093. [PMID: 35816195 PMCID: PMC10030401 DOI: 10.1007/s00402-022-04491-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/29/2021] [Accepted: 05/18/2022] [Indexed: 11/29/2022]
Abstract
INTRODUCTION The purpose was to compare the arthroscopic rod technique to stress ultrasound in the dynamic assessment of lateral elbow instabilities. MATERIALS AND METHODS Fifteen elbows of eight specimen with a mean age of 66.4 ± 13.3 years were assessed in a prone position following a defined dissection setup. After evaluation of the native status, an arthroscopic dissection of the radial collateral ligament (RCL) or lateral ulnar collateral ligament (LUCL), and finally of entire capsuloligamentous structures was performed. Three raters examined each state (native, RCL or LUCL lesion, complete lesion) with the arthroscopic rod technique in 90° flexion and with stress ultrasound in 30 and 90° flexion. The intra-class correlation coefficient (ICC) was calculated to assess the interrater reliability as well as test-retest reliability for each testing modality (arthroscopy and ultrasound). RESULTS The arthroscopic rod technique showed a superior interrater and test-retest reliability of 0.953 and 0.959 (P < 0.001), respectively, when compared to stress ultrasound with an ICC of 0.4 and 0.611 (P < 0.001). A joint space opening during arthroscopy of > 6 mm humero-ulnar or > 7 mm humero-radial was indicative for a lateral collateral ligament lesion. However, a differentiation between an isolated RCL or LUCL tear was not possible. A lateral joint opening of ≥ 9 mm was only observed in complete tears of the lateral capsuloligamentous complex. CONCLUSIONS The arthroscopic rod technique showed a superior interrater and test-retest reliability when compared to stress ultrasound. Arthroscopic assessment for radial elbow instability was found to be reliable and reproducible. A joint gapping ≥ 9 mm in the arthroscopic evaluation is a sign for a complete insufficiency of the radial capsuloligamentous complex. However, it is not possible to precisely distinguish between a lesion of the RCL or LUCL by arthroscopy. On the basis of our results, dynamic ultrasound testing may be inappropriate to objectify lateral elbow instability.
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Affiliation(s)
- Johannes Plath
- Department of Trauma, Orthopaedic, Plastic and Hand Surgery, University Hospital of Augsburg, Stenglinstrasse 2, 86156, Augsburg, Germany.
| | - Alexander Otto
- Department of Trauma, Orthopaedic, Plastic and Hand Surgery, University Hospital of Augsburg, Stenglinstrasse 2, 86156, Augsburg, Germany
- Department of Orthopedic Sports Medicine, Klinikum Rechts Der Isar, Technische Universitaet Muenchen, Muenchen, Germany
| | - Stefan Förch
- Department of Trauma, Orthopaedic, Plastic and Hand Surgery, University Hospital of Augsburg, Stenglinstrasse 2, 86156, Augsburg, Germany
| | - Sebastian Siebenlist
- Department of Orthopedic Sports Medicine, Klinikum Rechts Der Isar, Technische Universitaet Muenchen, Muenchen, Germany
| | - Bianca Grosser
- Department of Pathology, University Hospital of Augsburg, Augsburg, Germany
| | - Edgar Mayr
- Department of Trauma, Orthopaedic, Plastic and Hand Surgery, University Hospital of Augsburg, Stenglinstrasse 2, 86156, Augsburg, Germany
| | - Andreas B Imhoff
- Department of Orthopedic Sports Medicine, Klinikum Rechts Der Isar, Technische Universitaet Muenchen, Muenchen, Germany
| | - Andreas Lenich
- Zentrum Für Ellenbogen- Und Schulter-Therapie (ZEST), Orthopädie Am Stiglmaierplatz, Munich, Germany
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Kleim BD, Carbonel JFS, Hinz M, Rupp MC, Scheiderer B, Imhoff AB, Siebenlist S. A shallow morphology of the intertubercular groove is associated with medial and bilateral but not lateral pulley lesions. Knee Surg Sports Traumatol Arthrosc 2023:10.1007/s00167-023-07350-x. [PMID: 36820903 DOI: 10.1007/s00167-023-07350-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/10/2022] [Accepted: 02/10/2023] [Indexed: 02/24/2023]
Abstract
PURPOSE To investigate the influence of intertubercular groove (IG) morphology on the development of different types of biceps reflection pulley (BRP) injuries. METHODS A consecutive cohort of 221 patients with ventral shoulder pain and a preoperative diagnosis suspecting BRP injury, who underwent arthroscopy, was retrospectively reviewed. The presence or absence as well as type of pulley injury (medial, lateral or bilateral) was confirmed arthroscopically. The intertubercular groove was evaluated on MRIs after triplanar reconstruction of the axial plane. IG depth, width, medial wall angle (MWA), lateral wall angle (LWA) and total opening angle (TOA) were measured. IG depth and width were expressed in relation to the humeral head diameter. Measurements were performed by two clinicians independently and averaged. RESULTS Of 166 included patients 43 had bilateral, 65 medial and 38 lateral BRP lesions. 20 patients had intact BRPs and represented the control group. The intra-class correlation coefficient of measurements was 0.843-0.955. Patients with a medial or bilateral BRP injury had a flatter MWA (38.8° or 40.0° vs. 47.9°, p < 0.001), wider TOA (96.1° or 96.6° vs. 82.6°, p < 0.001), greater width (12.5 or 12.3 vs. 10.8 mm, p = 0.013) and shallower depth (5.5 or 5.4 vs. 6.2 mm, p < 0.001) than the control group. Conversely, the IG morphology of those with lateral BRP injuries did not differ significantly from the control group. The odds ratio for a medial or bilateral BRP injury when the TOA exceeded 95° was 6.8 (95% confidence interval 3.04-15.2). CONCLUSION A dysplastic type of IG morphology with a wide TOA, flat MWA, decreased depth and increased width is associated with the presence of medial and bilateral BRP injuries. A TOA of > 95° increases the likelihood of a medial or bilateral BRP injury 6.8-fold. Lateral BRP injuries are not associated with dysplastic IG morphology. Concomitant LHBT surgery may, therefore, not always be necessary during isolated supraspinatus tendon repair. LEVEL OF EVIDENCE Level III.
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Affiliation(s)
- Benjamin Daniel Kleim
- Department of Sports Orthopedics, Technical University of Munich, Ismaninger Str. 22, 81675, Munich, Germany.
| | | | - Maximilian Hinz
- Department of Sports Orthopedics, Technical University of Munich, Ismaninger Str. 22, 81675, Munich, Germany
| | - Marco-Christopher Rupp
- Department of Sports Orthopedics, Technical University of Munich, Ismaninger Str. 22, 81675, Munich, Germany
| | - Bastian Scheiderer
- Department of Sports Orthopedics, Technical University of Munich, Ismaninger Str. 22, 81675, Munich, Germany
| | - Andreas Balthasar Imhoff
- Department of Sports Orthopedics, Technical University of Munich, Ismaninger Str. 22, 81675, Munich, Germany
| | - Sebastian Siebenlist
- Department of Sports Orthopedics, Technical University of Munich, Ismaninger Str. 22, 81675, Munich, Germany
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Rupp MC, Lindner F, Winkler PW, Muench LN, Mehl J, Imhoff AB, Siebenlist S, Feucht MJ. Clinical Effect of Isolated Lateral Closing Wedge Distal Femoral Osteotomy Compared to Medial Opening Wedge High Tibial Osteotomy for the Correction of Varus Malalignment: A Propensity Score-Matched Analysis. Am J Sports Med 2023; 51:437-445. [PMID: 36629434 PMCID: PMC9909033 DOI: 10.1177/03635465221142615] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Abstract
BACKGROUND Recent evidence questions the role of medial opening wedge high tibial osteotomy (mowHTO) in the correction of femoral-based varus malalignment because of the potential creation of an oblique knee joint line. However, the clinical effectiveness of alternatively performing an isolated lateral closing wedge distal femoral osteotomy (lcwDFO), in which the mechanical unloading effect in knee flexion may be limited, is yet to be confirmed. PURPOSE/HYPOTHESIS The purpose of this article was to compare clinical outcomes between patients undergoing varus correction via isolated lcwDFO or mowHTO, performed according to the location of the deformity, in a cohort matched for confounding variables. It was hypothesized that results from undergoing isolated lcwDFO for symptomatic varus malalignment would not significantly differ from the results after mowHTO. STUDY DESIGN Cohort study; Level of evidence, 3. METHODS Consecutive patients who underwent isolated mowHTO or lcwDFO according to a tibial- or femoral-based symptomatic varus deformity between January 2010 and October 2019 were enrolled. Confounding factors, including age at surgery, sex, body mass index, preoperative femorotibial axis, and postoperative follow-up, were matched using propensity score matching. The International Knee Documentation Committee (IKDC) Subjective Knee Form, Western Ontario and McMaster Universities Osteoarthritis Index (WOMAC), Lysholm score, Tegner Activity Scale, and visual analog scale (VAS) for pain were collected preoperatively and at a minimum of 24 months postoperatively. RESULTS Of 535 knees assessed for eligibility, 50 knees (n = 50 patients, n = 25 per group) were selected by propensity score matching. Compared with preoperatively, both the mowHTO group (IKDC, 55.1 ± 16.5 vs 71.3 ± 14.7, P = .002; WOMAC, 22.0 ± 18.0 vs 9.6 ± 10.8, P < .001; Lysholm, 55.2 ± 23.1 vs 80.7 ± 16, P < .001; VAS, 4.1 ± 2.4 vs 1.6 ± 1.8, P < .001) and the lcwDFO group (IKDC, 49.4 ± 14.6 vs 66 ± 20.1, P = .003; WOMAC, 25.2 ± 17.0 vs 12.9 ± 17.6, P = .003; Lysholm, 46.5 ± 15.6 vs 65.4 ± 28.7, P = .011; VAS, 4.5 ± 2.2 vs 2.6 ± 2.5, P = .001) had significantly improved at follow-up (80 ± 20 vs 81 ± 43 months). There were no significant differences between the groups at baseline, at final follow-up, or in the amount of clinical improvement in any of the outcome parameters (P > .05; respectively). CONCLUSION Performing both mowHTO or lcwDFO yields significant improvement in clinical outcomes if performed at the location of the deformity of varus malalignment. These findings confirm the clinical effectiveness of performing an isolated lcwDFO in femoral-based varus malalignment, which is comparable with that of mowHTO in the correction of varus malalignment.
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Affiliation(s)
- Marco-Christopher Rupp
- Department of Orthopaedic Sports Medicine, School of Medicine, Technical University of Munich, Munich, Germany,Marco-Christopher Rupp, MD, Department of Orthopaedic Sports Medicine, Technical University of Munich, Ismaninger Str. 22, Munich, 81675, Germany ()
| | - Felix Lindner
- Department of Orthopaedic Sports Medicine, School of Medicine, Technical University of Munich, Munich, Germany,Marco-Christopher Rupp, MD, Department of Orthopaedic Sports Medicine, Technical University of Munich, Ismaninger Str. 22, Munich, 81675, Germany ()
| | - Philipp W. Winkler
- Department of Orthopaedic Sports Medicine, School of Medicine, Technical University of Munich, Munich, Germany
| | - Lukas N. Muench
- Department of Orthopaedic Sports Medicine, School of Medicine, Technical University of Munich, Munich, Germany
| | - Julian Mehl
- Department of Orthopaedic Sports Medicine, School of Medicine, Technical University of Munich, Munich, Germany
| | - Andreas B. Imhoff
- Department of Orthopaedic Sports Medicine, School of Medicine, Technical University of Munich, Munich, Germany
| | - Sebastian Siebenlist
- Department of Orthopaedic Sports Medicine, School of Medicine, Technical University of Munich, Munich, Germany
| | - Matthias J. Feucht
- Orthopaedic Clinic Paulinenhilfe, Diakonie-Hospital, Stuttgart, Germany,Department of Orthopaedics and Trauma Surgery, Medical Center, Faculty of Medicine, Albert-Ludwigs-University of Freiburg, Freiburg, Germany
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Themessl A, Wagner T, Rupp MC, Degenhardt H, Woertler K, Hatter KA, Imhoff AB, Siebenlist S, Pogorzelski J. "Functional outcomes and MRI-based tendon healing after (antero-) superior rotator cuff repair among patients under 50 years: retrospective analysis of traumatic versus non-traumatic rotator cuff tears". BMC Musculoskelet Disord 2023; 24:52. [PMID: 36670374 PMCID: PMC9862981 DOI: 10.1186/s12891-023-06174-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/29/2022] [Accepted: 01/17/2023] [Indexed: 01/22/2023] Open
Abstract
BACKGROUND Rotator cuff tears among patients under 50 years either result from an adequate trauma or are considered non-traumatic due to work-related or athletic overuse. The impact of these different mechanisms on postoperative functional outcomes and tendon healing has not yet been fully understood. Therefore, it was the purpose of this study to investigate the influence of etiology of (antero-)superior rotator cuff tears on postoperative outcomes and the healing rates after arthroscopic rotator cuff repair in a young patient population. METHODS Patients under 50 years who underwent arthroscopic rotator cuff repair between 2006-2017 for an anterosuperior rotator cuff tear with a minimum follow up of 24 months were included in this study. Revision surgeries or reconstructive concomitant procedures other than long head of the biceps tenodesis were excluded. Patients were divided into two groups according to the etiology of their rotator cuff tear (traumatic vs. non-traumatic). Demographic and outcome scores including the American Shoulder and Elbow Surgeons (ASES) score, the Constant Score (CS), bilateral strength measurements and postoperative tendon integrity evaluated on magnetic resonance imaging (MRI) were assessed and compared between both groups. RESULTS The mean follow up for this study was 55.6 months (24 - 158). Twenty-one patients (50.0%) had a traumatic RCT and 21 patients (50.0%) had a non-traumatic tear. Outcome scores did not differ significantly between groups. Strength measurements of the supraspinatus revealed significantly decreased force of the affected side as opposed to the contralateral side (p = 0.001), regardless of etiology. Retear rates were similar in both groups (37.5% and 33.3%, p = n.s.). Cuff integrity at follow-up was not predictive of superior scores or strength. CONCLUSION Surgical treatment of traumatic and non-traumatic RCT yields good clinical results in patients under the age of 50. The etiology of the rotator cuff tear did not significantly affect postoperative outcomes or healing rates. About one third of the patients suffered from a retear postoperatively, however retears were not predictive of inferior outcomes at midterm follow-up. STUDY DESIGN Level III. TRIAL REGISTRATION Retrospectively registered.
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Affiliation(s)
- Alexander Themessl
- grid.6936.a0000000123222966Department of Orthopaedic Sports Medicine, Technical University of Munich, Ismaninger Str. 22, 81675 Munich, Germany
| | - Timon Wagner
- grid.6936.a0000000123222966Department of Orthopaedic Sports Medicine, Technical University of Munich, Ismaninger Str. 22, 81675 Munich, Germany
| | - Marco-Christopher Rupp
- grid.6936.a0000000123222966Department of Orthopaedic Sports Medicine, Technical University of Munich, Ismaninger Str. 22, 81675 Munich, Germany
| | - Hannes Degenhardt
- grid.6936.a0000000123222966Department of Orthopaedic Sports Medicine, Technical University of Munich, Ismaninger Str. 22, 81675 Munich, Germany
| | - Klaus Woertler
- grid.6936.a0000000123222966Department of Radiology, Technical University of Munich, Munich, Germany
| | - Kate A. Hatter
- grid.189509.c0000000100241216Department of Surgery/ Emergency Medicine, Duke University Hospital, Durham, NC USA
| | - Andreas B. Imhoff
- grid.6936.a0000000123222966Department of Orthopaedic Sports Medicine, Technical University of Munich, Ismaninger Str. 22, 81675 Munich, Germany
| | - Sebastian Siebenlist
- grid.6936.a0000000123222966Department of Orthopaedic Sports Medicine, Technical University of Munich, Ismaninger Str. 22, 81675 Munich, Germany
| | - Jonas Pogorzelski
- grid.6936.a0000000123222966Department of Orthopaedic Sports Medicine, Technical University of Munich, Ismaninger Str. 22, 81675 Munich, Germany
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Geyer S, Lacheta L, Seilern Und Aspang J, Willinger L, Lutz PM, Lappen S, Imhoff AB, Siebenlist S. Patient satisfaction, joint stability and return to sports following simple elbow dislocations: surgical versus non-surgical treatment. Arch Orthop Trauma Surg 2023; 143:1481-1489. [PMID: 35220457 PMCID: PMC9957866 DOI: 10.1007/s00402-022-04383-8] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/09/2021] [Accepted: 02/05/2022] [Indexed: 11/28/2022]
Abstract
PURPOSE While conservative management is commonly promoted for simple elbow dislocations, the importance of primary surgical treatment in these injuries is still undetermined. The objective of this study was to report patient-reported outcome measures (PROMs), return to sports (RTS) and joint stability using ultrasound in patients following conservative or surgical treatment after simple elbow dislocation. METHODS Patients with a minimum follow-up of 24 months after conservative (CT) or surgical treatment (ST) following simple elbow dislocation were included in this retrospective study. To evaluate patients' postoperative outcome and satisfaction, the Elbow Self-Assessment Score (ESAS) was used, and validated scores such as the Mayo elbow performance score (MEPS), the Quick Disability of Arm and Shoulder Score (Quick-DASH) and RTS were assessed. For objective assessment of residual joint instability, a standardized clinical examination as well as a dynamic ultrasound evaluation of the affected and the contralateral elbow was performed. RESULTS Forty-four patients (26 women, 18 men) with an average age of 41.5 ± 15.3 years were available for follow-up survey (65.5 ± 30.4 months; range 26-123). 21 patients were treated conservatively and twenty-three patients received surgical treatment. CT and ST resulted in similar outcome with regard to ROM, ESAS (CT: 99.4 ± 1.5; ST: 99.8 ± 0.3), MEPS (CT: 97.3 ± 6.8 points; ST: 98.7 ± 3.3) and Quick-DASH (CT: 7.8 ± 10.4; ST: 6.3 ± 7.9) (n.s.). There was no difference in elbow stability and laxity measured by ultrasound between the study groups and compared to the healthy elbow (n.s.). Two patients of the CT group (10%) complained about persistent subjective elbow instability. RTS was faster after surgical compared to conservative treatment (p = 0.036). CONCLUSION Both, conservative and surgical treatment results in high patient satisfaction and good-to-excellent functional outcome after simple elbow dislocation. Even though ultrasound evaluation showed no significant differences in joint gapping between groups, 10% of conservatively treated patients complained about severe subjective instability. Surgically treated patients returned faster to their preoperatively performed sports. Thus, primary surgical treatment may be beneficial for high demanding patients. LEVEL OF EVIDENCE Therapeutic study, Level III.
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Affiliation(s)
- Stephanie Geyer
- Department of Orthopaedic Sports Medicine, Technical University of Munich, Ismaninger Straße 22, 81675, Munich, Germany
| | - Lucca Lacheta
- Department of Shoulder and Elbow Surgery, Center for Musculoskeletal Surgery, Charité-Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin and Humboldt-Universität zu Berlin, Campus Virchow, Augustenburger Platz 1, 13353, Berlin, Germany
| | | | - Lukas Willinger
- Department of Trauma Surgery, Technical University of Munich, Ismaninger Straße 22, 81675, Munich, Germany
| | - Patricia M Lutz
- Department of Orthopaedic Sports Medicine, Technical University of Munich, Ismaninger Straße 22, 81675, Munich, Germany
| | - Sebastian Lappen
- Department of Orthopaedic Sports Medicine, Technical University of Munich, Ismaninger Straße 22, 81675, Munich, Germany
| | - Andreas B Imhoff
- Department of Orthopaedic Sports Medicine, Technical University of Munich, Ismaninger Straße 22, 81675, Munich, Germany
| | - Sebastian Siebenlist
- Department of Orthopaedic Sports Medicine, Technical University of Munich, Ismaninger Straße 22, 81675, Munich, Germany.
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Vieider RP, Berthold DP, Runer A, Winkler PW, Schulz P, Rupp MC, Siebenlist S, Muench LN. The 50 most cited studies on posterior tibial slope in joint preserving knee surgery. J Exp Orthop 2022; 9:119. [PMID: 36508044 PMCID: PMC9743935 DOI: 10.1186/s40634-022-00557-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/08/2022] [Accepted: 11/24/2022] [Indexed: 12/14/2022] Open
Abstract
PURPOSE To determine the 50 most cited studies on posterior tibial slope (PTS) in joint preserving knee surgery and assess their level of evidence, objective study quality scores as well as to examine whether the study quality correlated with the citation count and citation density in the top 50 list. METHODS A literature search on Web of Science was performed to determine the 50 most cited studies on the topic of PTS in joint preserving knee surgery between 1990 and 2022. The studies were evaluated for their bibliographic parameters, level of evidence rating (LOE), citation counts, the Modified Coleman Methodological Score (MCMS), the Methodological Index for Non-Randomized Studies (MINORS), and the Radiologic Methodology and Quality Scale (MQCSRE). RESULTS Of the top 50 list, 16 studies were published in the American Journal of Sports Medicine. A total of 23 studies were produced in the United States (46%). Of 10 different study types, case control studies (n = 16, 32%) and cadaveric studies (n = 10, 20%) were most common. 15 studies (30%) were purely radiological studies. 6 studies were level II (12%), 23 level III (46%), 15 level IV (30%), and 6 level V studies (12%), respectively. The number of citations ranged from 42 to 447 (mean 105.6 ± 79.2 citations) and showed a mean citation density of 10.3 ± 5.2, composed of the decades 1994 - 2000 (8.3 ± 4.1), 2001 - 2010 (11.1 ± 5.9), 2011 - 2019 (10.1 ± 5.1). Mean quality scores were 55.9 ± 13.0 for MCMS (n = 18), 14.5 ± 3.2 for MINORS (n = 18) and 18.1 ± 3.7 for MQCSRE (n = 20), respectively. High citation counts did not correlate with higher study quality scores (p > 0.05). Radiological studies were not significantly cited more often than non-radiological studies (mean 116.9 ± 88.3 vs. 100.8 ± 75.8 citations; p > 0.05). CONCLUSION In joint preserving knee surgery, the 50 most cited studies on PTS did not represent a ranking of the highest methodological quality scores. Citation counts and citation density over the past three decades did not significantly differ, even though the number of articles in the presented list multiplied over the same period. This list can serve as a reference tool for orthopedic surgeons aiming to review PTS literature.
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Affiliation(s)
- Romed P. Vieider
- grid.5252.00000 0004 1936 973XDepartment of Sports Orthopaedics, Klinikum Rechts Der Isar, Technichal University of Munich, Ismaninger Str. 22, 81675 Munich, Germany ,grid.22937.3d0000 0000 9259 8492Medical University of Vienna, Spitalgasse 23, Vienna, Austria
| | - Daniel P. Berthold
- grid.5252.00000 0004 1936 973XDepartment of Sports Orthopaedics, Klinikum Rechts Der Isar, Technichal University of Munich, Ismaninger Str. 22, 81675 Munich, Germany
| | - Armin Runer
- grid.5252.00000 0004 1936 973XDepartment of Sports Orthopaedics, Klinikum Rechts Der Isar, Technichal University of Munich, Ismaninger Str. 22, 81675 Munich, Germany
| | - Philipp W. Winkler
- grid.5252.00000 0004 1936 973XDepartment of Sports Orthopaedics, Klinikum Rechts Der Isar, Technichal University of Munich, Ismaninger Str. 22, 81675 Munich, Germany ,grid.473675.4Department of Orthopaedics and Traumatology, Kepler University Hospital GmbH, Linz, Austria
| | - Phillip Schulz
- grid.5252.00000 0004 1936 973XDepartment of Sports Orthopaedics, Klinikum Rechts Der Isar, Technichal University of Munich, Ismaninger Str. 22, 81675 Munich, Germany
| | - Marco-Christopher Rupp
- grid.5252.00000 0004 1936 973XDepartment of Sports Orthopaedics, Klinikum Rechts Der Isar, Technichal University of Munich, Ismaninger Str. 22, 81675 Munich, Germany
| | - Sebastian Siebenlist
- grid.5252.00000 0004 1936 973XDepartment of Sports Orthopaedics, Klinikum Rechts Der Isar, Technichal University of Munich, Ismaninger Str. 22, 81675 Munich, Germany
| | - Lukas N. Muench
- grid.5252.00000 0004 1936 973XDepartment of Sports Orthopaedics, Klinikum Rechts Der Isar, Technichal University of Munich, Ismaninger Str. 22, 81675 Munich, Germany
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Berthold DP, Muench LN, Dyrna F, Mazzocca AD, Garvin P, Voss A, Scheiderer B, Siebenlist S, Imhoff AB, Beitzel K. Current concepts in acromioclavicular joint (AC) instability - a proposed treatment algorithm for acute and chronic AC-joint surgery. BMC Musculoskelet Disord 2022; 23:1078. [PMID: 36494652 PMCID: PMC9733089 DOI: 10.1186/s12891-022-05935-0] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/01/2022] [Accepted: 10/30/2022] [Indexed: 12/13/2022] Open
Abstract
BACKGROUND There exists a vast number of surgical treatment options for acromioclavicular (AC) joint injuries, and the current literature has yet to determine an equivocally superior treatment. AC joint repair has a long history and dates back to the beginning of the twentieth century. MAIN BODY Since then, over 150 different techniques have been described, covering open and closed techniques. Low grade injuries such as Type I-II according to the modified Rockwood classification should be treated conservatively, while high-grade injuries (types IV-VI) may be indicated for operative treatment. However, controversy exists if operative treatment is superior to nonoperative treatment, especially in grade III injuries, as functional impairment due to scapular dyskinesia or chronic pain remains concerning following non-operative treatment. Patients with a stable AC joint without overriding of the clavicle and without significant scapular dysfunction (Type IIIA) may benefit from non-interventional approaches, in contrast to patients with overriding of the clavicle and therapy-resistant scapular dysfunction (Type IIIB). If these patients are considered non-responders to a conservative approach, an anatomic AC joint reconstruction using a hybrid technique should be considered. In chronic AC joint injuries, surgery is indicated after failed nonoperative treatment of 3 to 6 months. Anatomic AC joint reconstruction techniques along with biologic augmentation (e.g. Hybrid techniques, suture fixation) should be considered for chronic high-grade instabilities, accounting for the lack of intrinsic healing and scar-forming potential of the ligamentous tissue in the chronic setting. However, complication and clinical failure rates remain high, which may be a result of technical failures or persistent horizontal and rotational instability. CONCLUSION Future research should focus on addressing horizontal and rotational instability, to restore native physiological and biomechanical properties of the AC joint.
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Affiliation(s)
- Daniel P. Berthold
- grid.6936.a0000000123222966Department of Orthopaedic Sports Medicine, Technical University of Munich, Ismaninger Str. 22, 81675 Munich, Germany ,grid.411095.80000 0004 0477 2585Department of Orthopaedics and Trauma Surgery, Musculoskeletal University Center Munich (MUM), University Hospital, LMU Munich, Munich, Germany
| | - Lukas N. Muench
- grid.6936.a0000000123222966Department of Orthopaedic Sports Medicine, Technical University of Munich, Ismaninger Str. 22, 81675 Munich, Germany
| | - Felix Dyrna
- Department of Trauma, Hand and Reconstructive Surgery University Hospital Münster, Munich, Germany
| | - Augustus D. Mazzocca
- grid.32224.350000 0004 0386 9924Massachusetts General Hospital, 55 Fruit St, Boston, MA 02114 USA
| | - Patrick Garvin
- grid.32224.350000 0004 0386 9924Massachusetts General Hospital, 55 Fruit St, Boston, MA 02114 USA
| | - Andreas Voss
- grid.7727.50000 0001 2190 5763Department of Trauma Surgery, University Regensburg, Regensburg, Germany
| | - Bastian Scheiderer
- grid.6936.a0000000123222966Department of Orthopaedic Sports Medicine, Technical University of Munich, Ismaninger Str. 22, 81675 Munich, Germany
| | - Sebastian Siebenlist
- grid.6936.a0000000123222966Department of Orthopaedic Sports Medicine, Technical University of Munich, Ismaninger Str. 22, 81675 Munich, Germany
| | - Andreas B. Imhoff
- grid.6936.a0000000123222966Department of Orthopaedic Sports Medicine, Technical University of Munich, Ismaninger Str. 22, 81675 Munich, Germany
| | - Knut Beitzel
- Arthroscopy and Orthopedic Sportsmedicine, ATOS Orthoparc Clinic, Cologne, Germany
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Lappen S, Geyer S, Kadantsev P, Hinz M, Kleim B, Degenhardt H, Imhoff AB, Siebenlist S. All-suture anchors for distal biceps tendon repair: a preliminary outcome study. Arch Orthop Trauma Surg 2022; 143:3271-3278. [PMID: 36416943 DOI: 10.1007/s00402-022-04690-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/27/2022] [Accepted: 10/31/2022] [Indexed: 11/24/2022]
Abstract
INTRODUCTION The aim of this study was to retrospectively evaluate the clinical outcome of double intramedullary all-suture anchors' fixation for distal biceps tendon ruptures. MATERIALS AND METHODS A retrospective case series of patients who underwent primary distal biceps tendon repair with all-suture anchors was conducted. Functional outcome was assessed at a minimum follow-up of at 12 months based on the assessments of the Mayo Elbow Performance Score (MEPS), Andrews-Carson Score (ACS), Quick Disabilities of the Arm, Shoulder, and Hand questionnaire (QuickDASH), and the Visual Analog Scale (VAS) for pain. Maximum isometric strength test for flexion and supination as well as postoperative range of motion (ROM) were determined for both arms. RESULTS 23 patients treated with all-suture anchors were assessed at follow-up survey (mean age 56.5 ± 11.4 years, 96% male). The follow-up time was 20 months (range Q0.25-Q0.75, 15-23 months). The following outcome results were obtained: MEPS 100 (range Q0.25-Q0.75, 100-100); ACS 200 (range Q0.25-Q0.75, 195-200); QuickDASH 31 (range Q0.25-Q0.75, 30-31); VAS 0 (range Q0.25-Q0.75, 0-0). The mean strength compared to the uninjured side was 95.6% (range Q0.25-Q0.75, 80.9-104%) for flexion and 91.8 ± 11.6% for supination. There was no significant difference in ROM or strength compared to the uninjured side and no complications were observed in any patient. CONCLUSION Distal biceps tendon refixation using all-suture anchors provides good-to-excellent results in terms of patient-reported and functional outcome. This repair technique appears to be a viable surgical option, although further long-term results are needed. LEVEL OF EVIDENCE Level IV (case series).
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Affiliation(s)
- Sebastian Lappen
- Department of Orthopedic Sports Medicine, Technical University of Munich, Ismaninger Str. 22, 81675, Munich, Germany
| | - Stephanie Geyer
- Department of Orthopedic Sports Medicine, Technical University of Munich, Ismaninger Str. 22, 81675, Munich, Germany
| | - Pavel Kadantsev
- Department of Orthopedic Sports Medicine, Technical University of Munich, Ismaninger Str. 22, 81675, Munich, Germany
| | - Maximilian Hinz
- Department of Orthopedic Sports Medicine, Technical University of Munich, Ismaninger Str. 22, 81675, Munich, Germany
| | - Benjamin Kleim
- Department of Orthopedic Sports Medicine, Technical University of Munich, Ismaninger Str. 22, 81675, Munich, Germany
| | - Hannes Degenhardt
- Department of Orthopedic Sports Medicine, Technical University of Munich, Ismaninger Str. 22, 81675, Munich, Germany
| | - Andreas B Imhoff
- Department of Orthopedic Sports Medicine, Technical University of Munich, Ismaninger Str. 22, 81675, Munich, Germany
| | - Sebastian Siebenlist
- Department of Orthopedic Sports Medicine, Technical University of Munich, Ismaninger Str. 22, 81675, Munich, Germany.
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Winkler PW, Geyer S, Walzl D, Woertler K, Paul J, Siebenlist S, Imhoff AB, Achtnich A. Favorable long-term clinical and radiologic outcomes with high survivorship after autologous osteochondral transplantation of the talus. Knee Surg Sports Traumatol Arthrosc 2022; 31:2166-2173. [PMID: 36394584 PMCID: PMC10183420 DOI: 10.1007/s00167-022-07237-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/27/2022] [Accepted: 11/10/2022] [Indexed: 11/18/2022]
Abstract
PURPOSE To evaluate long-term clinical and radiologic outcomes of patients undergoing autologous osteochondral transplantation (AOT) for osteochondral lesions of the talus (OLT) and to perform a correlation analysis between clinical and radiologic outcomes. METHODS Thirty-five patients with a mean age of 32.2 ± 8.9 years undergoing AOT for OLT between 1997 and 2003 were available for follow-up after an average of 19.1 ± 1.4 years. Demographic, surgical, and injury-related data were collected. After a minimum 18-year follow-up, patient-reported outcome scores (PROs) were collected, including the American Orthopaedic Foot & Ankle Society (AOFAS) score, the Foot and Ankle Outcome Score (FAOS), Tegner Activity Scale, and Visual Analogue Scale (VAS) for pain of the ankle. The Lysholm Score and VAS for pain of the knee were collected to assess donor-site morbidity. Magnetic resonance imaging scans were obtained to conduct an assessment of the replaced cartilage using the Magnetic Resonance Observation of Cartilage Repair Tissue (MOCART) 2.0 scoring system. Any revision surgery (except symptomatic hardware removal and arthroscopic debridement) was defined as clinical failure. RESULTS Favorable clinical and radiologic (MOCART score, 73.7 ± 16.7 points) outcomes without any donor-site morbidities were observed. Twenty-three (65.7%) patients were satisfied or very satisfied with the surgical treatment. Fourteen (40.0%) and 25 (71.4%) patients had no or minor limitations in their athletic and working performance, respectively. A significant correlation between the MOCART and the FAOS Sport and Recreational activities subscale was found (rs, 0.491; p = 0.033). Six (17.1%) patients met the criteria for clinical failure an average of 12.2 ± 6.6 years after AOT. Survival analysis demonstrated a mean estimated time of survival of 21.3 years (95% CI [19.55, 22.96]) and a 20-year survival rate of 77.9%. CONCLUSION Autologous osteochondral transplantation to treat OLT achieves high patient satisfaction and favorable PROs with a 20-year survival rate of almost 80%. Given the high clinical efficacy of AOT, this procedure can be recommended as a safe and promising technique for the long-term therapy of OLT. LEVEL OF EVIDENCE Level IV.
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Affiliation(s)
- Philipp W Winkler
- Department of Sports Orthopaedics, Klinikum Rechts Der Isar, Technical University of Munich, Ismaninger Str. 22, 81675, Munich, Germany
| | - Stephanie Geyer
- Department of Sports Orthopaedics, Klinikum Rechts Der Isar, Technical University of Munich, Ismaninger Str. 22, 81675, Munich, Germany
| | - Daniela Walzl
- Department of Sports Orthopaedics, Klinikum Rechts Der Isar, Technical University of Munich, Ismaninger Str. 22, 81675, Munich, Germany
| | - Klaus Woertler
- Musculoskeletal Radiology Section, Klinikum Rechts Der Isar, Technical University of Munich, Munich, Germany
| | | | - Sebastian Siebenlist
- Department of Sports Orthopaedics, Klinikum Rechts Der Isar, Technical University of Munich, Ismaninger Str. 22, 81675, Munich, Germany
| | - Andreas B Imhoff
- Department of Sports Orthopaedics, Klinikum Rechts Der Isar, Technical University of Munich, Ismaninger Str. 22, 81675, Munich, Germany.
| | - Andrea Achtnich
- Department of Sports Orthopaedics, Klinikum Rechts Der Isar, Technical University of Munich, Ismaninger Str. 22, 81675, Munich, Germany
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Ehmann YJ, Esser T, Seyam A, Rupp MC, Mehl J, Siebenlist S, Imhoff AB, Minzlaff P. Low postoperative complication rate with high survival rate and good clinical outcome 9 years after autologous chondrocyte transplantation of the knee joint. Arch Orthop Trauma Surg 2022; 143:2665-2674. [PMID: 36198844 PMCID: PMC10110693 DOI: 10.1007/s00402-022-04611-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/04/2022] [Accepted: 08/28/2022] [Indexed: 11/02/2022]
Abstract
PURPOSE To investigate postoperative complications and associated risk factors for failure following autologous chondrocyte transplantation ("ACT") as well as its long-term survival and clinical function. It was hypothesized that ACT is a safe technique for cartilage repair with a low incidence of postoperative complications and rare rates of revision surgery combined with a high long-term survival and good to excellent clinical outcome in long-term-follow-up. METHODS All patients undergoing ACT-Cs of the knee joint between 2006 and 2012 at the author's institution were included in this retrospective study. Concomitant procedures had been performed if necessary. Early postoperative complications, revision surgeries, failure and risk factors for those events were evaluated 6 months after the surgery. Long-term clinical outcome was assessed using the Lysholm Score, the Tegner Score, a 10-grade scale for satisfaction and the Visual Analogue Scale (VAS) at a minimum follow-up of 9 years postoperatively. Long-term survival was calculated using revision surgeries, clinical failures and conversion procedures to create a Kaplan-Meier analysis. A subgroup analysis for different defect locations was performed. 139 patients were included in this study (27% female/ 73%male; age 26.7 [21.7; 35.2] years). The median defect size was 4.0 [3.0; 6.0] cm2 (40% medial femoral condyle (MFC), 17% lateral femoral condyle (LFC), 36% patella, 19% trochlea). 97 (70%) of the patients had undergone previous surgery and 84 (60%) underwent concomitant procedures. RESULTS Postoperatively, 8% of patients had complications (4% bleeding, 2% arthrofibrosis, 2% infection), 7% of patients needed revision surgery. 12% of patients had a prolonged deficit in ROM, that did not require revision surgery. No significant difference in terms of complications was found between the patellofemoral and femorotibial group. Patients demonstrated good patient reported long-term outcomes 9-15 years after the index surgery (Tegner: 4.7 ± 1.8; VAS: 2.4 ± 2.1; Lysholm: 80 ± 14; satisfaction with operation: 7.3 ± 1.9). Survival rates were 88% at 9 years, 85% at 11 years, and 85% at 13 years after the index procedure. Reasons for failure included debridement of ACT (n = 4; 5%), revision ACT (n = 3, 3%), conversion to total knee arthroplasty (n = 3, 3%) and conversion to High tibial osteotomy (HTO) (n = 1; 1%)). CONCLUSION The present study indicates ACT as an effective treatment option for femorotibial- as well as patellofemoral cartilage defects with a high long-term survival and low conversion rate as well as good long-term results regarding knee function and satisfaction. Postoperative complications needing revision surgery are rare. Prolongated deficits of range of motion appear frequently up to six months especially in patellofemoral defects, but can often be successfully addressed by intensified physiotherapy without requiring an arthrolysis. LEVEL OF EVIDENCE Level III.
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Affiliation(s)
- Yannick J Ehmann
- Department of Orthopedic Sports Medicine, Technical University of Munich, Ismaninger Str. 22, 81675, Munich, Germany
| | - Thekla Esser
- Department of Orthopedic Sports Medicine, Orthoclinic Agatharied, Agatharied, Germany
| | - Amr Seyam
- Department of Orthopedic Sports Medicine, Technical University of Munich, Ismaninger Str. 22, 81675, Munich, Germany
| | - Marco-Christopher Rupp
- Department of Orthopedic Sports Medicine, Technical University of Munich, Ismaninger Str. 22, 81675, Munich, Germany
| | - Julian Mehl
- Department of Orthopedic Sports Medicine, Technical University of Munich, Ismaninger Str. 22, 81675, Munich, Germany
| | - Sebastian Siebenlist
- Department of Orthopedic Sports Medicine, Technical University of Munich, Ismaninger Str. 22, 81675, Munich, Germany
| | - Andreas B Imhoff
- Department of Orthopedic Sports Medicine, Technical University of Munich, Ismaninger Str. 22, 81675, Munich, Germany.
| | - Philipp Minzlaff
- Department of Orthopedic Sports Medicine, Technical University of Munich, Ismaninger Str. 22, 81675, Munich, Germany.,Department of Orthopedic Sports Medicine, Orthoclinic Agatharied, Agatharied, Germany
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Berthold DP, Muench LN, Rupp MC, Siebenlist S, Cote MP, Mazzocca AD, Quindlen K. Head-Mounted Display Virtual Reality Is Effective in Orthopaedic Training: A Systematic Review. Arthrosc Sports Med Rehabil 2022; 4:e1843-e1849. [PMID: 36312724 PMCID: PMC9596866 DOI: 10.1016/j.asmr.2022.05.009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2021] [Accepted: 05/19/2022] [Indexed: 11/29/2022] Open
Abstract
Purpose To conduct a systematic review to determine the efficacy of head-mounted display (HMD) virtual reality (VR) in orthopaedic surgical training. Methods A thorough search was conducted on PubMed for articles published between January 2000 and August 2020. Studies were included if they (1) concerned orthopaedic surgery, (2) dealt with an HMD VR device, (3) the technology was being used for training purposes, and (4) was a randomized control trial (RCT). Results Eight articles met the inclusion criteria. Analysis of the 8 RCTs reveals 6 of the 8 demonstrating HMD VR to be a superior training method to traditional-based training modules. However, in the remaining 2 articles, authors found no significant difference between the VR group and controls, but showed at least equivalent ability to train novice surgeons. Conclusions RCTs show promising evidence that HMD VR is an efficacious tool in surgical training for orthopaedic procedures, with most randomized clinical trials showing improvement in novice students/surgeons compared with controls. Clinical Relevance As VR technology advances, so must the research directed at determining the efficacy of such technologies at educating our novice surgeons. RCTs are already demonstrating the role HMD VR can play in the education of novice orthopaedic surgeons.
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Affiliation(s)
- Daniel P. Berthold
- Department of Orthopaedic Sports Medicine, Technical University of Munich, Munich, Germany
- Address correspondence to Daniel P. Berthold, M.D., Department of Orthopaedic Sports Medicine, Technical University of Munich, Ismaninger Str. 22, 81675 Munich, Germany.
| | - Lukas N. Muench
- Department of Orthopaedic Sports Medicine, Technical University of Munich, Munich, Germany
| | - Marco-Christopher Rupp
- Department of Orthopaedic Sports Medicine, Technical University of Munich, Munich, Germany
| | - Sebastian Siebenlist
- Department of Orthopaedic Sports Medicine, Technical University of Munich, Munich, Germany
| | - Mark P. Cote
- Department of Orthopaedic Surgery, University of Connecticut, Storrs, Connecticut, U.S.A
| | - Augustus D. Mazzocca
- Department of Orthopaedic Surgery, Massachusetts General Hospital, Boston, Massachusetts, U.S.A
| | - Kevin Quindlen
- Department of Orthopaedic Surgery, University of Connecticut, Storrs, Connecticut, U.S.A
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Kleim BD, Hinz M, Geyer S, Scheiderer B, Imhoff AB, Siebenlist S. A 3-Dimensional Classification for Degenerative Glenohumeral Arthritis Based on Humeroscapular Alignment. Orthop J Sports Med 2022; 10:23259671221110512. [PMID: 35982830 PMCID: PMC9380229 DOI: 10.1177/23259671221110512] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/08/2022] [Accepted: 03/23/2022] [Indexed: 11/26/2022] Open
Abstract
Background Seminal classifications of degenerative arthritis of the shoulder (DAS) describe either cuff tear arthropathy in the coronal plane or primary osteoarthritis in the cross-sectional plane. None consider a biplanar eccentricity. Purpose/Hypothesis The purpose of this study was to investigate humeroscapular alignment (HSA) of patients with DAS in both the anteroposterior (A-P) and superoinferior (S-I) planes on computed tomography (CT) after 3-dimensional (3D) reconstruction and develop a classification based on biplanar HSA in 9 quadrants. It was hypothesized that biplanar eccentricity would occur frequently. Study Design Cross-sectional study; Level of evidence, 3. Methods The authors analyzed 130 CT scans of patients who had undergone shoulder arthroplasty. The glenoid center, trigonum, and inferior angle of the scapula were aligned in a single plane using 3D reconstruction software. Subluxation of the HSA was measured as the distance from the center of rotation of the humeral head to the scapular axis (line from trigonum through glenoid center) and was expressed as a percentage of the radius of the humeral head in both the A-P and the S-I directions. HSA was described in terms of A-P alignment first (posterior/central/anterior), then S-I alignment (superior/central/inferior), for a total of 9 different alignment combinations. Additionally, glenoid erosion was graded 1-3. Results Subluxation of the HSA was 74.1% posterior to 23.5% anterior in the A-P direction and 17.2% inferior to 68.6% superior in the S-I direction. A central HSA was calculated as between 20% posterior to 5% anterior (A-P) and 5% inferior to 20% superior (S-I), after a graphical analysis. Posterior subluxation >60% of the radius was labeled as extraposterior, and static acetabularization was labeled as extrasuperior. Overall, 21 patients had central-central, 40 centrosuperior, and 1 centroinferior alignment. Of 60 shoulders with posterior subluxation, alignment was posterocentral in 31, posterosuperior in 25, and posteroinferior in 5. There were 3 patients with anterocentral and 4 anterosuperior subluxation; in addition, 4 cases with extraposterior and 17 with extrasuperior subluxation were identified. Conclusion There was a high prevalence of biplanar eccentricity in DAS. The 3D classification system using combined HSA and glenoid erosion can be applied to describe DAS comprehensively.
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Affiliation(s)
- Benjamin D. Kleim
- Department of Sports Orthopaedics, Technical University of Munich,
Munich, Germany
| | - Maximillian Hinz
- Department of Sports Orthopaedics, Technical University of Munich,
Munich, Germany
| | - Stephanie Geyer
- Department of Sports Orthopaedics, Technical University of Munich,
Munich, Germany
| | - Bastian Scheiderer
- Department of Sports Orthopaedics, Technical University of Munich,
Munich, Germany
| | - Andreas B. Imhoff
- Department of Sports Orthopaedics, Technical University of Munich,
Munich, Germany
| | - Sebastian Siebenlist
- Department of Sports Orthopaedics, Technical University of Munich,
Munich, Germany
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Lappen S, Siebenlist S, Kadantsev P, Hinz M, Seilern Und Aspang J, Lutz PM, Imhoff AB, Geyer S. Distal biceps tendon ruptures occur with the almost extended elbow and supinated forearm - an online video analytic study. BMC Musculoskelet Disord 2022; 23:599. [PMID: 35733124 PMCID: PMC9214967 DOI: 10.1186/s12891-022-05546-9] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/24/2021] [Accepted: 06/14/2022] [Indexed: 11/30/2022] Open
Abstract
Background Distal biceps tendon ruptures can lead to significant restrictions in affected patients. The mechanisms of injury described in scientific literature are based exclusively on case reports and theoretical models. This study aimed to determine the position of the upper extremities and forces involved in tendon rupture through analyzing video recordings. Methods The public YouTube.com database was queried for videos capturing a clear view of a distal biceps tendon rupture. Two orthopedic surgeons independently assessed the videos for the activity that led to the rupture, the arm position at the time of injury and the forces imposed on the elbow joint. Results Fifty-six video segments of a distal biceps rupture were included (55 male). In 96.4%, the distal biceps tendon ruptured with the forearm supinated and the elbow isometrically extended (non-dynamic muscle engagement) (71.4%) or slightly flexed (24%). The most common shoulder positions were adduction (85.7%) and neutral position with respect to rotation (92.9%). Most frequently a tensile force was enacted on the elbow (92.9%) and the most common activity observed was deadlifting (71.4%). Conclusion Distal biceps tendon ruptures were most commonly observed in weightlifting with a slightly flexed or isometrically extended elbow and forearm supination. These observations may provide useful information for sports specific evidence-based injury prevention, particularly in high performing athletes and individuals engaged in resistance training. Level of evidence Observational study.
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Affiliation(s)
- Sebastian Lappen
- Department of Sports Orthopaedics, Technical University of Munich, Ismaninger Straße 22, 81675, Munich, Germany
| | - Sebastian Siebenlist
- Department of Sports Orthopaedics, Technical University of Munich, Ismaninger Straße 22, 81675, Munich, Germany.
| | - Pavel Kadantsev
- Department of Sports Orthopaedics, Technical University of Munich, Ismaninger Straße 22, 81675, Munich, Germany
| | - Maximilian Hinz
- Department of Sports Orthopaedics, Technical University of Munich, Ismaninger Straße 22, 81675, Munich, Germany
| | | | - Patricia M Lutz
- Department of Sports Orthopaedics, Technical University of Munich, Ismaninger Straße 22, 81675, Munich, Germany
| | - Andreas B Imhoff
- Department of Sports Orthopaedics, Technical University of Munich, Ismaninger Straße 22, 81675, Munich, Germany
| | - Stephanie Geyer
- Department of Sports Orthopaedics, Technical University of Munich, Ismaninger Straße 22, 81675, Munich, Germany
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Scheiderer B, Obmann S, Feucht MJ, Siebenlist S, Degenhardt H, Imhoff AB, Rupp MC, Pogorzelski J. The Morphology of the Acromioclavicular Joint Does Not Influence the Postoperative Outcome Following Acute Stabilization—A Case Series of 81 Patients. Arthrosc Sports Med Rehabil 2022; 4:e835-e842. [PMID: 35747655 PMCID: PMC9210376 DOI: 10.1016/j.asmr.2021.09.007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2021] [Accepted: 09/07/2021] [Indexed: 12/03/2022] Open
Abstract
Purpose To specifically evaluate the influence of the acromioclavicular (AC)-joint morphology on the outcome after arthroscopically assisted coracoclavicular (CC) stabilization surgery with suspensory fixation systems and to investigate whether an additional open AC-joint reduction and AC cerclage improves the clinical outcome for patients with certain morphologic AC-joint subtypes. Methods Patients with an acute acromioclavicular joint injury, who underwent arthroscopically assisted CC stabilization with suspensory fixation systems with or without concomitant AC cerclage between January 2009 and June 2017 were identified and included in this retrospective cohort analysis. AC-joint morphology was assessed on preoperative radiographs and categorized as “flat” or “non-flat” (“oblique”/“curved”) subtypes. After a minimum of 2 years of follow-up, postoperative Single Assessment Numeric Evaluation (SANE), American Shoulder and Elbow Surgeons (ASES), and visual analog scale (VAS) scores for pain were collected. A subgroup analysis of clinical outcomes depending on the surgical technique and morphological subtype of the AC joint was performed. Results Eighty-one patients (95% male, mean age 35 ± 12 years) could be included at a mean follow-up of 57 ± 14 months. Radiographic assessment of AC-joint morphology showed 24 (30%) cases of flat type, 38 (47%) cases of curved type, and 19 (23%) cases of oblique morphology. Postoperatively, no clinically significant difference could be detected after the treatment of AC joint injury via CC stabilization with or without concomitant AC cerclage (VASrest: P = .067; VASmax: P = .144, ASES: P = .548; SANE: P = .045). No clinically significant differences were found between the surgical techniques for the flat morphologic subtype (VASrest: P = .820; VASmax: P = .251; SANE: P = .104; ASES: P = .343) or the non-flat subtype (VASres: P = .021; VASmax: P = .488; SANE: P = .243, ASES: P = .843). Conclusions In arthroscopically assisted AC stabilization surgery with suspensory fixation systems for acute AC-joint injury, the AC-joint morphology did not influence the postoperative outcome, independent of the surgical technique. No clinical benefit of performing an additional horizontal stabilization could be detected in our collective at mid-term follow-up. Level of Evidence Level IV, therapeutic case series.
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Hohmann E, Glatt V, Tetsworth K, Bak K, Beitzel K, Bøe B, Calvo E, Di Giacomo G, Favard L, Franceschi F, Funk L, Glanzmann M, Imhoff A, Lädermann A, Levy O, Ludvigsen T, Milano G, Moroder P, Rosso C, Siebenlist S, Abrams J, Arciero R, Athwal G, Burks R, Gillespie R, Kibler B, Levine W, Mazzocca A, Millett P, Ryu R, Safran M, Sanchez-Sotelo J, Savoie FB, Sethi P, Shea K, Verma N, Warner JJ, Weber S, Wolf B. Subacromial Decompression in Patients With Shoulder Impingement With an Intact Rotator Cuff: An Expert Consensus Statement Using the Modified Delphi Technique Comparing North American to European Shoulder Surgeons. Arthroscopy 2022; 38:1051-1065. [PMID: 34655764 DOI: 10.1016/j.arthro.2021.09.031] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/19/2021] [Revised: 09/28/2021] [Accepted: 09/28/2021] [Indexed: 02/02/2023]
Abstract
PURPOSE To perform a Delphi consensus for the treatment of patients with shoulder impingement with intact rotator cuff tendons, comparing North American with European shoulder surgeon preferences. METHODS Nineteen surgeons from North America (North American panel [NAP]) and 18 surgeons from Europe (European panel [EP]) agreed to participate and answered 10 open-ended questions in rounds 1 and 2. The results of the first 2 rounds were used to develop a Likert-style questionnaire for round 3. If agreement at round 3 was ≤60% for an item, the results were carried forward into round 4. For round 4, the panel members outside consensus (>60%, <80%) were contacted and asked to review their response. The level of agreement and consensus was defined as 80%. RESULTS There was agreement on the following items: impingement is a clinical diagnosis; a combination of clinical tests should be used; other pain generators must be excluded; radiographs must be part of the workup; magnetic resonance imaging is helpful; the first line of treatment should always be physiotherapy; a corticosteroid injection is helpful in reducing symptoms; indication for surgery is failure of nonoperative treatment for a minimum of 6 months. The NAP was likely to routinely prescribe nonsteroidal anti-inflammatory drugs (NAP 89%; EP 35%) and consider steroids for impingement (NAP 89%; EP 65%). CONCLUSIONS Consensus was achieved for 16 of the 71 Likert items: impingement is a clinical diagnosis and a combination of clinical tests should be used. The first line of treatment should always be physiotherapy, and a corticosteroid injection can be helpful in reducing symptoms. The indication for surgery is failure of no-operative treatment for a minimum of 6 months. The panel also agreed that subacromial decompression is a good choice for shoulder impingement if there is evidence of mechanical impingement with pain not responding to nonsurgical measures. LEVEL OF EVIDENCE Level V, expert opinion.
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Affiliation(s)
- Erik Hohmann
- Department of Orthopaedic Surgery and Sportsmedicine, Valiant Clinic/Houston Methodist, Dubai, United Arab Emirates.
| | - Vaida Glatt
- University of Texas Health Science Centre, San Antonio, Texas, U.S.A
| | - Kevin Tetsworth
- Department of Orthopaedic Surgery, Royal Brisbane Hospital, Herston, Australia; Orthopaedic Research Centre of Australia, Sydney, Australia
| | | | - Klaus Bak
- Adeas Hospitals Skodsborg&Parken, Copenhagen, Denmark.
| | | | - Berte Bøe
- Division of Orthopaedic Surgery, Oslo University Hospital, Norway.
| | - Emilio Calvo
- Department of Orthopaedic Surgery and Traumatology, Universidad Autonoma, Madrid, Spain.
| | | | - Luc Favard
- Tours University Hospital, University of Tours, France.
| | | | - Lennard Funk
- Upper Limb Unit, Wrightington Hospital, Wrightington, UK.
| | | | - Andreas Imhoff
- Department of Orthopaedic Sports Medicine, Technical University Munich, Germany.
| | - Alexandre Lädermann
- Division of Orthopaedics and Trauma Surgery, La Tour Hospital, Meyrin, Switzerland.
| | - Ofer Levy
- Reading Shoulder Unit, Berkshire Independent Hospital, Reading, Berkshire, United Kingdom; The Israeli Shoulder Institute, Faculty of Health Sciences, Ben-Gurion University, Beer Sheva, Israel.
| | - Tom Ludvigsen
- Division of Orthopaedic Surgery, Oslo University Hospital, Norway.
| | - Giuseppe Milano
- Unit of Orthopaedics and Traumatology, University of Brescia, Italy.
| | - Philipp Moroder
- Department of Shoulder and Elbow Surgery, Centrum for Muskuloskeletale Chirurgie, Charite Universitätsmedizin Berlin, Germany.
| | | | - Sebastian Siebenlist
- Department of Orthopaedic Sports Medicine, Technical University Munich, Germany.
| | - Jeffrey Abrams
- Princeton Orthopeadic Associates Princeton, New Jersey , USA.
| | - Robert Arciero
- Department of Orthopaedic Surgery, UCONN Health, Farmington, CT, USA.
| | - George Athwal
- Roth/McFarlane Hand&Upper limb Centre, St Joseph's Health Care, London, Ontario, Canada.
| | | | - Robert Gillespie
- Department of Orthopaedics Case Western Reserve University, University Hospital Cleveland Medical Center, Cleveland, Ohio, USA.
| | - Ben Kibler
- Lexington Orthopaedic Clinic, Sports Medicine Center Lexington, Kentucky, USA.
| | - William Levine
- Department of Orthopaedic Surgery, Columbia University Medical Center New York, NY, USA.
| | - Augustus Mazzocca
- Department of Orthopaedic Surgery, UCONN Health, Farmington, CT, USA.
| | | | - Richard Ryu
- The Ryu Hurvitz Orthopaedic Clinic, Santa Barbara, California, USA.
| | - Marc Safran
- Department of Orthopaedic Surgery, Stanford University Stanford, CA, USA.
| | | | - Felix Buddy Savoie
- Department of Orthopaedic Surgery, Tulane University New Orleans, LA, USA.
| | - Paul Sethi
- The ONS Sports and Shoulder Service, Greenwich, CT, USA.
| | - Kevin Shea
- Department of Orthopaedic Surgery, UCONN Health, Farmington, CT, USA.
| | - Nikhil Verma
- Midwest Orthopaedics at Rush University, Chicago, IL, USA.
| | - Jon Jp Warner
- Massachusetts General Hospital, The Boston Shoulder Institute Boston, MA USA.
| | | | - Brian Wolf
- Department of Orthopaedic Surgery, University of Iowa, Iowa City, IA USA.
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Degenhardt H, Pogorzelski J, Themessl A, Muench LN, Wechselberger J, Woertler K, Siebenlist S, Imhoff AB, Scheiderer B. Reliable Clinical and Sonographic Outcomes of Subpectoral Biceps Tenodesis Using an All-Suture Anchor Onlay Technique. Arthroscopy 2022; 38:729-734. [PMID: 34508820 DOI: 10.1016/j.arthro.2021.08.033] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/10/2020] [Revised: 07/14/2021] [Accepted: 08/15/2021] [Indexed: 02/02/2023]
Abstract
PURPOSE To evaluate the clinical outcomes and structural integrity of primary subpectoral biceps tenodesis using an all-suture anchor onlay technique for long head of the biceps (LHB) tendon pathology. METHODS We conducted a retrospective case series with prospectively collected data of patients who underwent primary, isolated subpectoral biceps tenodesis with a single all-suture anchor onlay fixation between March 2017 and March 2019. Outcomes were recorded at a minimum follow-up of 12 months based on assessments of the American Shoulder and Elbow Surgeons (ASES) score, LHB score, and elbow flexion strength and supination strength measurements. The integrity of the tenodesis construct was evaluated using ultrasound. RESULTS Thirty-four patients were available for clinical and ultrasound examination at a mean follow-up of 18 ± 5 months. The mean ASES score significantly improved from 51.0 ± 14.2 points preoperatively to 89.8 ± 10.5 points postoperatively (P < .001). The minimal clinically important difference for the ASES score was 8.7 points, which was exceeded by 31 patients (91.2%). The mean postoperative LHB score was 92.2 ± 8.3 points. Regarding subcategories, an average of 47.2 ± 6.3 points was reached for "pain/cramps"; 26.4 ± 6.1 points, "cosmesis"; and 18.6 ± 2.6 points, "elbow flexion strength." Both elbow flexion strength and supination strength were similar compared with the nonoperated side (P = .169 and P = .210, respectively). In 32 patients, ultrasound examination showed an intact tenodesis construct, whereas 2 patients (5.9%) sustained failure of the all-suture anchor fixation requiring revision. CONCLUSIONS Primary subpectoral biceps tenodesis using an all-suture anchor onlay technique for pathology of the LHB tendon provides reliable clinical results and a relatively low failure rate (5.9%). LEVEL OF EVIDENCE Level IV, case series.
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Affiliation(s)
- Hannes Degenhardt
- Department of Orthopaedic Sports Medicine, Technical University of Munich, Munich, Germany
| | - Jonas Pogorzelski
- Department of Orthopaedic Sports Medicine, Technical University of Munich, Munich, Germany
| | - Alexander Themessl
- Department of Orthopaedic Sports Medicine, Technical University of Munich, Munich, Germany
| | - Lukas N Muench
- Department of Orthopaedic Sports Medicine, Technical University of Munich, Munich, Germany
| | | | - Klaus Woertler
- Department of Radiology, Technical University of Munich, Munich, Germany
| | - Sebastian Siebenlist
- Department of Orthopaedic Sports Medicine, Technical University of Munich, Munich, Germany
| | - Andreas B Imhoff
- Department of Orthopaedic Sports Medicine, Technical University of Munich, Munich, Germany
| | - Bastian Scheiderer
- Department of Orthopaedic Sports Medicine, Technical University of Munich, Munich, Germany.
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Rupp MC, Kadantsev PM, Siebenlist S, Hinz M, Feucht MJ, Pogorzelski J, Scheiderer B, Imhoff AB, Muench LN, Berthold DP. Low rate of substantial loss of reduction immediately after hardware removal following acromioclavicular joint stabilization using a suspensory fixation system. Knee Surg Sports Traumatol Arthrosc 2022; 30:3842-3850. [PMID: 35451639 PMCID: PMC9568474 DOI: 10.1007/s00167-022-06978-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/11/2021] [Accepted: 04/01/2022] [Indexed: 11/10/2022]
Abstract
PURPOSE To evaluate immediate loss of reduction in patients undergoing hardware removal after arthroscopically assisted acromioclavicular (AC) joint stabilization using a high-tensile suture tape suspensory fixation system and to identify risk factors associated with immediate loss of reduction. MATERIALS AND METHODS Twenty-two consecutive patients with a mean age of 36.4 ± 12.6 years (19-56), who underwent hardware removal 18.2 ± 15.0 months following arthroscopically assisted stabilization surgery using a suspensory fixation system for AC joint injury between 01/2012 and 01/2021 were enrolled in this retrospective monocentric study. The coracoclavicular distance (CCD) as well as the clavicular dislocation/acromial thickness (D/A) ratio were measured on anterior-posterior radiographs prior to hardware removal and immediately postoperatively by two independent raters. Loss of reduction, defined as 10% increase in the CCD, was deemed substantial if the CCD increased 6 mm compared to preoperatively. Constitutional and surgical characteristics were assessed in a subgroup analysis to detect risk factors associated with loss of reduction. RESULTS Postoperatively, the CCD significantly increased from 12.6 ± 3.7 mm (4.8-19.0) to 14.5 ± 3.3 mm (8.7-20.6 mm) (p < 0.001) while the D/A ratio increased from 0.4 ± 0.3 (- 0.4-0.9) to 0.6 ± 0.3 (1.1-0.1) (p = 0.034) compared to preoperatively. In 10 cases (45%), loss of reduction was identified, while a substantial loss of reduction (> 6 mm) was only observed in one patient (4.5%). A shorter time interval between index stabilization surgery and hardware removal significantly corresponded to immediate loss of reduction (11.0 ± 5.6 vs. 30.0 ± 20.8 months; p = 0.007), as hardware removal within one year following index stabilization was significantly associated with immediate loss of reduction (p = 0.027; relative risk 3.4; odds ratio 11.67). CONCLUSIONS Substantial loss of reduction after hardware removal of a high-tensile suture tape suspensory fixation system was rare, indicating that the postoperative result of AC stabilization is not categorically at risk when performing this procedure. Even though radiological assessment of the patients showed a statistically significant immediate superior clavicular displacement after this rarely required procedure, with an increased incidence in the first year following stabilization, this may not negatively influence the results of ACJ stabilization in a clinically relevant way. LEVEL OF EVIDENCE IV.
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Affiliation(s)
- Marco-Christopher Rupp
- grid.6936.a0000000123222966Department of Orthopaedic Sports Medicine, Technical University of Munich, Ismaninger Str. 22, 81675 Munich, Germany
| | - Pavel M. Kadantsev
- grid.6936.a0000000123222966Department of Orthopaedic Sports Medicine, Technical University of Munich, Ismaninger Str. 22, 81675 Munich, Germany ,European Clinic of Sports Traumatology and Orthopaedics (ECSTO), Moscow, Russian Federation ,grid.77642.300000 0004 0645 517XPeoples Friendship University of Russia, Moscow, Russian Federation
| | - Sebastian Siebenlist
- grid.6936.a0000000123222966Department of Orthopaedic Sports Medicine, Technical University of Munich, Ismaninger Str. 22, 81675 Munich, Germany
| | - Maximilian Hinz
- grid.6936.a0000000123222966Department of Orthopaedic Sports Medicine, Technical University of Munich, Ismaninger Str. 22, 81675 Munich, Germany
| | - Matthias J. Feucht
- Orthopaedic Clinic Paulinenhilfe, Diakonie-Hospital, Stuttgart, Germany ,grid.5963.9Department of Orthopaedics and Trauma Surgery, Medical Center, Faculty of Medicine, Albert-Ludwigs-University of Freiburg, Freiburg, Germany
| | - Jonas Pogorzelski
- grid.6936.a0000000123222966Department of Orthopaedic Sports Medicine, Technical University of Munich, Ismaninger Str. 22, 81675 Munich, Germany
| | - Bastian Scheiderer
- grid.6936.a0000000123222966Department of Orthopaedic Sports Medicine, Technical University of Munich, Ismaninger Str. 22, 81675 Munich, Germany
| | - Andreas B. Imhoff
- grid.6936.a0000000123222966Department of Orthopaedic Sports Medicine, Technical University of Munich, Ismaninger Str. 22, 81675 Munich, Germany
| | - Lukas N. Muench
- grid.6936.a0000000123222966Department of Orthopaedic Sports Medicine, Technical University of Munich, Ismaninger Str. 22, 81675 Munich, Germany
| | - Daniel P. Berthold
- grid.6936.a0000000123222966Department of Orthopaedic Sports Medicine, Technical University of Munich, Ismaninger Str. 22, 81675 Munich, Germany
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Berthold DP, LeVasseur MR, Muench LN, Mancini MR, Uyeki CL, Lee J, Beitzel K, Imhoff AB, Arciero RA, Scheiderer B, Siebenlist S, Mazzocca AD. Minimum 10-Year Clinical Outcomes After Arthroscopic 270° Labral Repair in Traumatic Shoulder Instability Involving Anterior, Inferior, and Posterior Labral Injury. Am J Sports Med 2021; 49:3937-3944. [PMID: 34723684 PMCID: PMC8649457 DOI: 10.1177/03635465211053632] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
BACKGROUND Current literature reports highly satisfactory short- and midterm clinical outcomes in patients with arthroscopic 270° labral tear repairs. However, data remain limited on long-term clinical outcomes and complication and redislocation rates in patients with traumatic shoulder instability involving anterior, inferior, and posterior labral injury. PURPOSE To investigate, at a minimum follow-up of 10 years, the clinical outcomes, complications, and recurrent instability in patients with 270° labral tears involving the anterior, inferior, and posterior labrum treated with arthroscopic stabilization using suture anchors. STUDY DESIGN Case series; Level of evidence, 4. METHODS A retrospective outcomes study was completed for all patients with a minimum 10-year follow-up who underwent arthroscopic 270° labral tear repairs with suture anchors by a single surgeon. Outcome measures included pre- and postoperative Rowe score, American Shoulder and Elbow Surgeons (ASES) score, Simple Shoulder Test, visual analog scale for pain, and Single Assessment Numeric Evaluation (SANE). Western Ontario Shoulder Instability Index (WOSI) scores were collected postoperatively. Complication data were collected, including continued instability, subluxation or dislocation events, and revision surgery. Failure was defined as any cause of revision surgery. RESULTS In total, 21 patients (mean ± SD age, 27.1 ± 9.6 years) with 270° labral repairs were contacted at a minimum 10-year follow-up. All outcome measures showed statistically significant improvements as compared with those preoperatively: Rowe (53.9 ± 11.4 to 88.7 ± 8.9; P = .005), ASES (72.9 ± 18.4 to 91.8 ± 10.8; P = .004), Simple Shoulder Test (8.7 ± 2.4 to 11.2 ± 1.0; P = .013), visual analog scale (2.5 ± 2.6 to 0.5 ± 1.1; P = .037), and SANE (24.0 ± 15.2 to 91.5 ± 8.3; P = .043). The mean postoperative WOSI score at minimum follow-up was 256.3 ± 220.6. Three patients had postoperative complications, including a traumatic subluxation, continued instability, and a traumatic dislocation, 2 of which required revision surgery (14.2% failure rate). CONCLUSION Arthroscopic repairs of 270° labral tears involving the anterior, inferior, and posterior labrum have highly satisfactory clinical outcomes at 10 years, with complication and redislocation rates similar to those reported at 2 years. This suggests that repairs of extensile labral tears are effective in restoring and maintaining mechanical stability of the glenohumeral joint in the long term.
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Affiliation(s)
- Daniel P. Berthold
- Department of Orthopaedic Surgery,
University of Connecticut, Mansfield, Connecticut, USA,Department of Orthopaedic Sports
Medicine, Technical University of Munich, Munich, Germany,Daniel P. Berthold, MD,
Department of Orthopaedic Sports Medicine, Technical University of Munich,
Ismaninger Str 22, 81675 Munich, Germany (
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| | - Matthew R. LeVasseur
- Department of Orthopaedic Surgery,
University of Connecticut, Mansfield, Connecticut, USA
| | - Lukas N. Muench
- Department of Orthopaedic Surgery,
University of Connecticut, Mansfield, Connecticut, USA,Department of Orthopaedic Sports
Medicine, Technical University of Munich, Munich, Germany
| | - Michael R. Mancini
- Department of Orthopaedic Surgery,
University of Connecticut, Mansfield, Connecticut, USA
| | - Colin L. Uyeki
- Department of Orthopaedic Surgery,
University of Connecticut, Mansfield, Connecticut, USA
| | - Julianna Lee
- Department of Orthopaedic Surgery,
University of Connecticut, Mansfield, Connecticut, USA
| | - Knut Beitzel
- Arthroscopy and Orthopedic
Sportsmedicine, ATOS Orthoparc Clinic, Cologne, Germany
| | - Andreas B. Imhoff
- Department of Orthopaedic Sports
Medicine, Technical University of Munich, Munich, Germany
| | - Robert A. Arciero
- Department of Orthopaedic Surgery,
University of Connecticut, Mansfield, Connecticut, USA
| | - Bastian Scheiderer
- Department of Orthopaedic Sports
Medicine, Technical University of Munich, Munich, Germany
| | - Sebastian Siebenlist
- Department of Orthopaedic Sports
Medicine, Technical University of Munich, Munich, Germany
| | - Augustus D. Mazzocca
- Department of Orthopaedic Surgery,
University of Connecticut, Mansfield, Connecticut, USA
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Wurm M, Siebenlist S, Zyskowski M, Pflüger P, Biberthaler P, Beirer M, Kirchhoff C. Excellent clinical and radiological outcome following locking compression plate fixation of displaced medial clavicle fractures. BMC Musculoskelet Disord 2021; 22:905. [PMID: 34706701 PMCID: PMC8555070 DOI: 10.1186/s12891-021-04775-8] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/22/2021] [Accepted: 10/10/2021] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Treatment of medial clavicle fractures is still controversially discussed in the community of upper extremity surgeons. An increasing number of symptomatic non-unions following conservative treatment of displaced fractures led to the development of various surgical approaches. Aim of this study was to evaluate the clinical and radiological outcome following operative treatment of displaced medial end clavicle fractures. METHODS Patients who presented with a displaced fracture of the medial clavicle between September 2012 and December 2019 were retrospectively enrolled in this study. All patients were operatively treated with open reduction and internal fixation (ORIF) using an anatomically precontoured locking compression plate (LCP) originally designed for the lateral clavicle (Synthes®, Umkirch, Germany). Functional outcome was recorded using the American Shoulder and Elbow Surgeons (ASES) Score, the Munich Shoulder Questionnaire (MSQ), Shoulder Pain and Disability Index (SPADI) and Constant Score. RESULTS Overall 18 patients with a mean age of 54.5 ± 23.5 years suffering from a displaced fracture of the medial clavicle were identified. The mean follow-up was 40.9 ± 26.2 months. The mean ASES accounted for 88.3 ± 20.8 points, the mean MSQ was 83.1 ± 21.7 points, the mean SPADI was 85.6 ± 22.5 and a mean normative age- and sex-specific Constant Score of 77.5 ± 19.1 points resulted. No minor or major complications were observed. Radiologic fracture consolidation was achieved in all patients after a mean of 6.4 months. CONCLUSION Surgical treatment of displaced medial clavicle fractures using an anatomically precontoured locking plate originally designed for the lateral clavicle led to very good to excellent clinical and functional results. TRIAL REGISTRATION No: DRKS00024813 , retrospectively registered 19.03.2021 ( www.drks.de ).
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Affiliation(s)
- Markus Wurm
- Department of Trauma Surgery, Klinikum rechts der Isar, Technical University Munich, Munich, Germany
| | - Sebastian Siebenlist
- Department of Orthopaedic Sports Medicine, Klinikum rechts der Isar, Technical University Munich, Munich, Germany
| | - Michael Zyskowski
- Department of Trauma Surgery, Klinikum rechts der Isar, Technical University Munich, Munich, Germany
| | - Patrick Pflüger
- Department of Trauma Surgery, Klinikum rechts der Isar, Technical University Munich, Munich, Germany
| | - Peter Biberthaler
- Department of Trauma Surgery, Klinikum rechts der Isar, Technical University Munich, Munich, Germany
| | - Marc Beirer
- Department of Trauma Surgery, Klinikum rechts der Isar, Technical University Munich, Munich, Germany
| | - Chlodwig Kirchhoff
- Department of Trauma Surgery, Klinikum rechts der Isar, Technical University Munich, Munich, Germany.
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