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Dippmann C, Lavard P, Kourakis AH, Siersma V, Hansen P, Talibi M, Krogsgaard MR. Good 5-year results and a low redislocation rate using an á la carte treatment algorithm for patellofemoral instability in patients with severe trochlea dysplasia. Knee Surg Sports Traumatol Arthrosc 2024. [PMID: 39171406 DOI: 10.1002/ksa.12432] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/14/2023] [Revised: 06/19/2024] [Accepted: 06/28/2024] [Indexed: 08/23/2024]
Abstract
PURPOSE Trochlear dysplasia is a major risk factor for recurrent patellar instability, reduced quality of life and osteoarthritis of the patellofemoral joint. Patellar instability in patients with trochlear dysplasia can be treated by trochleoplasty, usually in combination with medial patellofemoral ligament reconstruction (MPFL-R). An á la carte treatment algorithm, which also addresses patella alta, lateralisation of the tibial tuberosity and valgus or torsional malalignment when present has been standard in one clinic for treatment of patellar instability patients since 2009, based on the hypothesis that it results in optimal subjective and clinical outcome, normalisation of the lateral trochlea inclination (LTI) angle and a low rate of patellar redislocation. METHODS This prospective study reports the 5-year results for consecutive patients with high-grade trochlea dysplasia operated according to the algorithm 2010-2017, evaluated preoperatively and 1, 2 and 5 years postoperatively. Clinical information on previous surgery and postoperative patellar stability, range-of-motion (ROM) and subsequent surgery were registered. Subjective outcome was evaluated by four patient-reported outcome measures (PROMs): Kujala, Lysholm, International Knee Documentation Committee and Knee injury and Osteoarthritis Outcome Score. The LTI angle was measured pre- and postoperatively on magnetic resonance imaging scans. RESULTS There were 131 patients (87 females) with a median age of 22 years (range: 14-38). All had a trochleoplasty and an MPFL-R. Additional procedures (tibial tuberosity medialisation/distalisation and/or femoral/tibial osteotomy) were performed in 52%. All PROM scores improved from preoperatively to 1-year follow-up with further improvement at 2 and 5 years after surgery (p < 0.05). Three patients (2%) had a traumatic patellar dislocation 9, 12 and 24 months postoperatively and 38% underwent subsequent surgery (hardware removal, arthroscopically assisted brisement force, knee arthroscopy). A normalisation of the LTI angle (≥11°) was achieved in 76%. CONCLUSIONS Treatment according to the à la carte algorithm for patients with patellar instability and high-grade trochlear dysplasia resulted in significant clinical and subjective improvement in all PROM scores and a very low redislocation rate (2%) 5 years after surgery. LEVEL OF EVIDENCE Level II.
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Affiliation(s)
- Christian Dippmann
- Section of Sportstraumatology M51, Department of Orthopedic Surgery, Bispebjerg and Frederiksberg Hospital, Copenhagen, Denmark
| | - Peter Lavard
- Section of Sportstraumatology M51, Department of Orthopedic Surgery, Bispebjerg and Frederiksberg Hospital, Copenhagen, Denmark
| | - Anette Holm Kourakis
- Section of Sportstraumatology M51, Department of Orthopedic Surgery, Bispebjerg and Frederiksberg Hospital, Copenhagen, Denmark
| | - Volkert Siersma
- Department of Public Health, The Research Unit for General Practice and Section of General Practice, University of Copenhagen, Copenhagen, Denmark
| | - Philip Hansen
- Department of Radiology, Copenhagen University Hospital, Bispebjerg, University of Copenhagen, Copenhagen, Denmark
| | - Monica Talibi
- Department of Radiology, Copenhagen University Hospital, Bispebjerg, University of Copenhagen, Copenhagen, Denmark
| | - Michael Rindom Krogsgaard
- Section of Sportstraumatology M51, Department of Orthopedic Surgery, Bispebjerg and Frederiksberg Hospital, Copenhagen, Denmark
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Waaler PAS, Kjellsen AB, Hysing-Dahl T, Inderhaug E. Evaluation of Patellar Dysplasia and Postoperative Pain After Mini-Open, Thin-Flap Trochleoplasty: A Retrospective Analysis of 75 Consecutive Cases. Orthop J Sports Med 2024; 12:23259671241270352. [PMID: 39315033 PMCID: PMC11418658 DOI: 10.1177/23259671241270352] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/07/2024] [Accepted: 06/18/2024] [Indexed: 09/25/2024] Open
Abstract
Background The association between inherent patellar anatomy and postoperative pain after trochleoplasty in patients with patellar instability is poorly understood. Purpose/Hypothesis The study purpose was to evaluate outcomes after mini-open, thin-flap trochleoplasty. The hypothesis was that more severe patellar dysplasia would be correlated with increased postoperative pain after trochleoplasty. Study Design Case series; Level of evidence 4. Methods Patients with patellar instability who underwent mini-open, thin-flap trochleoplasty in combination with other individualized procedures between 2013 and 2022 were included. Patellar dysplasia was evaluated by calculating the Wiberg index at the widest and most distal cartilaginous parts of the patella on preoperative magnetic resonance imaging. At the postoperative follow-up, participants completed the visual analog scale for usual pain (VAS-U), Banff Patellofemoral Instability Instrument 2.0 (BPII), global rating of change scale, and an evaluation of their current symptom state. Redislocations and complications were recorded. The correlation between the Wiberg index and the VAS-U was calculated with the Spearman rho. Between-group analyses based on demographic and pathoanatomic features were conducted using the Mann-Whitney U test, independent-samples t test, and chi-square test. Results Included were 75 knees in 63 patients (median age at surgery, 19.1 years; IQR, 16-22 years) with a median follow-up of 44 months (IQR, 23.8-83.2 months). The median BPII score was 78.2 (IQR, 54.8-92.5), with 88% reporting an improvement in knee function relative to before surgery, but 21.1% remained dissatisfied with their current knee symptom state. New episodes of patellar dislocation were seen in 3 knees (4%), and 14 knees (18.7%) underwent reoperation with either revision surgery (n = 7; 9.3%) or arthroscopic synovectomy (n = 7; 9.3%). A weak positive, nonsignificant correlation was found between increased postoperative pain and a higher Wiberg index, both at the widest (r S = 0.16; P = .23) and most distal (r S = 0.02; P = .89) parts of the patella. Significantly worse VAS-U scores were seen in female versus male patients (P = .013). Conclusion Good patient-reported results with a low risk of redislocation were seen in the study cohort, but reoperation rates were high, and 21% of the patients remained dissatisfied with their current symptom state. More pronounced patellar dysplasia (increased Wiberg index) had only a poor association with more severe postoperative pain in the current study.
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Affiliation(s)
- Per Arne Skarstein Waaler
- Department of Orthopaedic Surgery, Haukeland University Hospital, Bergen, Norway
- Sports Traumatology and Arthroscopy Research Group (STAR Group), Department of Clinical Medicine, University of Bergen, Bergen Norway
| | - Asle Birkeland Kjellsen
- Department of Orthopaedic Surgery, Haukeland University Hospital, Bergen, Norway
- Sports Traumatology and Arthroscopy Research Group (STAR Group), Department of Clinical Medicine, University of Bergen, Bergen Norway
| | - Trine Hysing-Dahl
- Sports Traumatology and Arthroscopy Research Group (STAR Group), Department of Clinical Medicine, University of Bergen, Bergen Norway
- Department of Surgery, Haraldsplass Deaconess Hospital, Bergen, Norway
| | - Eivind Inderhaug
- Department of Orthopaedic Surgery, Haukeland University Hospital, Bergen, Norway
- Sports Traumatology and Arthroscopy Research Group (STAR Group), Department of Clinical Medicine, University of Bergen, Bergen Norway
- Department of Surgery, Haraldsplass Deaconess Hospital, Bergen, Norway
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Dejour D, Guarino A, Pineda T, Demey G. Sulcus-deepening trochleoplasty grants satisfactory results with minimal patellofemoral arthritis at 23-30 years of follow-up. Knee Surg Sports Traumatol Arthrosc 2024. [PMID: 38967273 DOI: 10.1002/ksa.12316] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/26/2023] [Revised: 05/27/2024] [Accepted: 06/03/2024] [Indexed: 07/06/2024]
Abstract
PURPOSE The purpose of this study was to evaluate the radiographic and clinical outcomes of sulcus-deepening trochleoplasty at a minimum follow-up of 23 years. METHODS The authors evaluated a retrospective series of 10 patients (11 knees) who underwent trochleoplasty between 1993 and 2000. All patients were assessed at a minimum follow-up of 23 years by an independent clinician who noted any patellar redislocations and collected the International Knee Documentation Committee (IKDC), Kujala scores and range of motion. Radiographic examination was performed to assess patellofemoral arthritis using the Iwano classification. RESULTS A total of 11 knees, from five women and five men aged 25.6 ± 6.9 years (range, 15-47 years) underwent trochleoplasty during the inclusion period. All 11 knees underwent adjuvant procedures during trochleoplasty (100%): 10 had tibial tuberosity osteotomy (TTO) and vastus medialis plasty and 1 had only vastus medialis plasty (had prior TTO). At a follow-up of 24.4 ± 2.1 years (range, 23-30 years), two patients were lost to follow-up (18%). The Iwano classification was Grade 1 in three patients (33%), Grade 2 in four patients (44%) and Grade 4 in two patients (22%). The flexion range was 130 ± 8.7° and satisfaction was 9.2 ± 0.7, Kujala was 76.9 ± 8.5 and IKDC was 65.5 ± 13.8. CONCLUSION At 23-30 years following sulcus-deepening trochleoplasty in this small series of 10 patients (11 knees), patients had satisfactory clinical scores, only 1 patient reported an episode of traumatic patellar dislocation, and two knees had patellofemoral arthritis of Iwano Grade >2 (22%). LEVEL OF EVIDENCE Level IV.
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Affiliation(s)
- David Dejour
- Lyon-Ortho-Clinic, Clinique de la Sauvegarde, Ramsay Santé, Lyon, France
| | - Amedeo Guarino
- Lyon-Ortho-Clinic, Clinique de la Sauvegarde, Ramsay Santé, Lyon, France
| | - Tomas Pineda
- Lyon-Ortho-Clinic, Clinique de la Sauvegarde, Ramsay Santé, Lyon, France
| | - Guillaume Demey
- Lyon-Ortho-Clinic, Clinique de la Sauvegarde, Ramsay Santé, Lyon, France
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Chen J, Li X, Feng Y, Li Q, Xu Z, Wang L, Zhang J, Quan Z, Zhou A. Lateral trochlear inclination measured by the transepicondylar axis holds potential for evaluating trochlear dysplasia in patients with lateral patellar dislocation. Knee Surg Sports Traumatol Arthrosc 2023; 31:5611-5620. [PMID: 37851025 DOI: 10.1007/s00167-023-07614-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/10/2023] [Accepted: 09/29/2023] [Indexed: 10/19/2023]
Abstract
PURPOSE To verify that lateral trochlear inclination (LTI) measured by the transepicondylar axis can reliably be used to evaluate trochlear dysplasia (TD) on MRI and can serve as an objective indication of trochleoplasty for patients with lateral patellar dislocation (LPD). METHODS Eighty patients with recurrent LPD and eighty healthy subjects were included. TD, posterior condylar angle (PCA), and LTI measured by the posterior condylar reference line (LTIp), surgical transepicondylar axis (LTIs), and anatomical transepicondylar axis (LTIa) were assessed on MRI. The intraclass correlation coefficient (ICC) and Bland-Altman analysis were performed, the correlations and differences amongst the parameters were identified, and a binary logistic regression model was established. RESULTS Each measurement had excellent inter- and intra-observer agreement. The LTIp, LTIs and LTIa were smaller in the study group than in the control group, with mean differences of 9.0°, 7.2° and 7.0°, respectively (P < 0.001). The PCA was larger in patients with LPD than in the control group (P < 0.001). LTIp was associated with PCA in the study group (r = - 0.41, P < 0.001). The pathological values of LTIp, LTIs and LTIa were 11.7°, 15.3° and 17.4°, respectively. LTIs and LTIa were independent risk factors for LPD, with ORs of 7.33 (95% CI [1.06-52.90], P = 0.048) and 10.29 (95% CI [1.38-76.96], P = 0.023), respectively. CONCLUSION The LTI can be reliably measured by MRI, but LTIp could potentially decrease the recorded value from the actual inclination angle. LTIs and LTIa are more appropriate to serve as trochleoplasty indications for patients with LPD, which could help orthopedists with surgical decision-making. LEVEL OF EVIDENCE Level III.
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Affiliation(s)
- Jiaxing Chen
- Department of Orthopedics, The First Affiliated Hospital of Chongqing Medical University, Chongqing, 400016, China
- Orthopedic Laboratory of Chongqing Medical University, Chongqing, 400016, China
| | - Xinyi Li
- Department of Radiology, The First Affiliated Hospital of Chongqing Medical University, Chongqing, 400016, China
| | - Yi Feng
- Medical Education Department, The First Affiliated Hospital of Chongqing Medical University, Chongqing, 400016, China
| | - Qiaochu Li
- Department of Orthopedics, The First Affiliated Hospital of Chongqing Medical University, Chongqing, 400016, China
- Orthopedic Laboratory of Chongqing Medical University, Chongqing, 400016, China
| | - Zijie Xu
- Department of Sports Medicine, Beijing Key Laboratory of Sports Injuries, Peking University Third Hospital, Beijing, 100191, China
| | - Linbang Wang
- Department of Orthopedics, Peking University Third Hospital, Beijing, 100191, China
| | - Jian Zhang
- Department of Orthopedics, The First Affiliated Hospital of Chongqing Medical University, Chongqing, 400016, China
- Orthopedic Laboratory of Chongqing Medical University, Chongqing, 400016, China
| | - Zhengxue Quan
- Department of Orthopedics, The First Affiliated Hospital of Chongqing Medical University, Chongqing, 400016, China.
- Orthopedic Laboratory of Chongqing Medical University, Chongqing, 400016, China.
| | - Aiguo Zhou
- Department of Orthopedics, The First Affiliated Hospital of Chongqing Medical University, Chongqing, 400016, China.
- Orthopedic Laboratory of Chongqing Medical University, Chongqing, 400016, China.
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D'Ambrosi R, Migliorini F, Cerciello S, Guerra G, Corona K, Mangiavini L, Ursino N, Vlaic J, Jelic M. Management of the first episode of traumatic patellar dislocation: an international survey. Knee Surg Sports Traumatol Arthrosc 2022; 31:2257-2265. [PMID: 36477349 DOI: 10.1007/s00167-022-07273-z] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/30/2022] [Accepted: 12/01/2022] [Indexed: 12/12/2022]
Abstract
PURPOSE This international survey aimed to evaluate the potential controversies regarding the management of first patellar dislocation amongst experienced knee surgeries in the treatment of the first episode of patellar dislocation without osteochondral fragments. METHODS An online survey was conducted from February 2021 to December 2021 to assess the global trend in the diagnosis and management of first-time patellar dislocation without osteochondral fragments. The online survey was accessible on the homepage of the website of the European Society of Sports Traumatology, Knee Surgery and Arthroscopy (ESSKA). The questionnaire consisted of multiple-choice questions and was divided into three sections. The first section consisted of eight questions regarding demographic information, professional activity, and responder experience. The second section consisted of 13 questions regarding the approach to a first patellar dislocation (clinical examination, imaging, and rehabilitation). The third section contained 2 questions concerning the relevance of patient characteristics to the therapeutic algorithm (age, sports, and pathoanatomical predisposing risk factors). RESULTS A total of 438 orthopaedic surgeons worldwide completed the questionnaire. At the first approach to diagnose a first-time patellar dislocation, 251 (57%) of the surgeons requested plain radiographs, and 158 (36%) requested magnetic resonance imaging (MRI). In conservatively treated patients, 368 (84%) of the respondents recommended the use of a knee brace. Amongst them, 14 (3%) advocated its use for one week, 75 (17%) for two weeks, 123 (28%) for three weeks, 105 (24%) for four weeks, and 97 (22%) for six weeks. In conservatively treated patients, 215 (49%) of the surgeons recommended load to tolerance, 148 (34%) recommended 30% to 60% of the bodyweight, and 75 (17%) advised against weight-bearing. More than half of the surgeons considered a patient aged less than 35 years practising contact sports to be a candidate for the medial patello-femoral ligament (MPFL) procedure. In addition, a tibial tuberosity to trochlear groove distance (TT-TG) distance of 15 to > 20 mm (for > 75% of the surgeons) and a trochlea types C and D (for > 70% of the surgeons) were considered possible indications for direct surgical management. CONCLUSION At the first approach to diagnose a first-time patellar dislocation, plain radiographs and MRI should be performed. In conservatively treated patients, most of the surgeons recommend weight-bearing to tolerance and a knee brace during the first four weeks, with range of motion of full extension to 30° during the first 15 days and up to 60° for an additional 15 days. Surgical management should be performed in patients in the second and third decades of life practising contact sports and in those patients who present types C and D trochlea dysplasia and patella alta. LEVEL OF EVIDENCE IV.
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Affiliation(s)
- Riccardo D'Ambrosi
- IRCCS Orthopedic Institute Galeazzi, Milan, Italy. .,Department of Biomedical Sciences for Health, University of Milan, Milan, Italy.
| | - Filippo Migliorini
- Department of Orthopaedic, Trauma, and Reconstructive Surgery, RWTH University Hospital, Aachen, Germany
| | - Simone Cerciello
- Department of Orthopaedics, A. Gemelli University Hospital Foundation IRCCS, Catholic University, Rome, Italy.,Casa di Cura Villa Betania, Rome, Italy.,Marrelli Hospital, Crotone, Italy
| | - Germano Guerra
- Department of Medicine, Health Sciences Vincenzo Tiberio, University of Molise, Campobasso, Italy
| | - Katia Corona
- Department of Medicine, Health Sciences Vincenzo Tiberio, University of Molise, Campobasso, Italy
| | - Laura Mangiavini
- IRCCS Orthopedic Institute Galeazzi, Milan, Italy.,Department of Biomedical Sciences for Health, University of Milan, Milan, Italy
| | | | | | - Mislav Jelic
- Department of Orthopaedic Surgery, University Hospital Center Zagreb, School of Medicine, University of Zagreb, Zagreb, Croatia
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