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Zhang ZY, Yin Y, Bai WB, Shi WL, Pan XY, Huang HJ, Zhang X, Wang C, Wang JQ. Association of Concomitant MRI-Determined Anterolateral Complex Injury With Quantitative Measurements of Altered Rotational Tibiofemoral Position on MRI in Patients With ACL Injury. Orthop J Sports Med 2024; 12:23259671241230954. [PMID: 38414665 PMCID: PMC10898314 DOI: 10.1177/23259671241230954] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/09/2023] [Accepted: 08/21/2023] [Indexed: 02/29/2024] Open
Abstract
Background Reduced graft failure rates have been reported after anterior cruciate ligament (ACL) reconstruction combined with anterolateral complex (ALC) augmentation. However, the preoperative diagnosis of concomitant ALC injury remains a clinical challenge. Purpose To identify the altered rotational tibiofemoral position on magnetic resonance imaging (MRI) in ACL-injured patients with concomitant ALC injury. Study Design Cross-sectional study; Level of evidence, 3. Methods Based on the evaluation of ALC abnormalities on MRI scans by experienced surgeons, 123 patients with nonchronic (<3 months) ACL injury confirmed by arthroscopy were included. The patients were divided into 2 groups-an ALC-injured group (n = 57) and an ALC-intact group (n = 66). The altered rotational tibiofemoral position was evaluated and compared by quantitatively measuring internal rotational tibial subluxation (IRTS) and axial internal tibial rotation (ITRa) on MRI. Multivariate logistic regression and receiver operating characteristic (ROC) analyses were performed to identify the factors associated with concomitant MRI-determined ALC injury. Results The ALC-injured group showed significantly increased IRTS (P < .001), ITRa (P < .001), lateral anterior tibial subluxation (ATS) (P < .001), and global ATS (GATS) (P = .002) compared with the ALC-intact group, while no significant difference in medial ATS (P = .810) was observed. A strong positive correlation was identified between IRTS and ITRa (rP = 0.809; P < .001). Multivariate analyses revealed that IRTS (P < .001) and GATS (P = .016) were associated factors for the presence of concomitant MRI-determined ALC injury. IRTS (area under the curve [AUC] = 0.734) was more strongly associated with the outcome than GATS (AUC = 0.658) in ROC analyses, suggesting a more significant internal rotational subluxation than anterior subluxation of the tibia. An IRTS threshold of 3.1 mm demonstrated a specificity of 84.2% for indicating the presence of concomitant MRI-determined ALC injury. Conclusion The presence of concomitant MRI-determined ALC injury in ACL-injured patients was associated with a significant increase in IRTS and ITRa compared with those with intact ALC, indicating that these MRI measurements of the altered rotational tibiofemoral position could serve as potential quantifiable indicators for identifying concomitant ALC injury in clinical practice.
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Affiliation(s)
- Zhi-Yu Zhang
- Department of Sports Medicine, Peking University Third Hospital, Institute of Sports Medicine of Peking University; Beijing Key Laboratory of Sports Injuries, Beijing, China
- Engineering Research Center of Sports Trauma Treatment Technology and Devices, Ministry of Education, Beijing, China
| | - Yu Yin
- Department of Sports Medicine, Peking University Third Hospital, Institute of Sports Medicine of Peking University; Beijing Key Laboratory of Sports Injuries, Beijing, China
- Engineering Research Center of Sports Trauma Treatment Technology and Devices, Ministry of Education, Beijing, China
| | - Wen-Bin Bai
- Department of Sports Medicine, Peking University Third Hospital, Institute of Sports Medicine of Peking University; Beijing Key Laboratory of Sports Injuries, Beijing, China
- Engineering Research Center of Sports Trauma Treatment Technology and Devices, Ministry of Education, Beijing, China
| | - Wei-Li Shi
- Department of Sports Medicine, Peking University Third Hospital, Institute of Sports Medicine of Peking University; Beijing Key Laboratory of Sports Injuries, Beijing, China
- Engineering Research Center of Sports Trauma Treatment Technology and Devices, Ministry of Education, Beijing, China
| | - Xiao-Yu Pan
- Department of Epidemiology, Harvard T.H. Chan School of Public Health, Boston, Massachusetts, USA. Z.Z. and Y.Y. contributed equally to this article. C.W. and J.W. contributed equally to this article
| | - Hong-Jie Huang
- Department of Sports Medicine, Peking University Third Hospital, Institute of Sports Medicine of Peking University; Beijing Key Laboratory of Sports Injuries, Beijing, China
- Engineering Research Center of Sports Trauma Treatment Technology and Devices, Ministry of Education, Beijing, China
| | - Xin Zhang
- Department of Sports Medicine, Peking University Third Hospital, Institute of Sports Medicine of Peking University; Beijing Key Laboratory of Sports Injuries, Beijing, China
- Engineering Research Center of Sports Trauma Treatment Technology and Devices, Ministry of Education, Beijing, China
| | - Cheng Wang
- Department of Sports Medicine, Peking University Third Hospital, Institute of Sports Medicine of Peking University; Beijing Key Laboratory of Sports Injuries, Beijing, China
- Engineering Research Center of Sports Trauma Treatment Technology and Devices, Ministry of Education, Beijing, China
| | - Jian-Quan Wang
- Department of Sports Medicine, Peking University Third Hospital, Institute of Sports Medicine of Peking University; Beijing Key Laboratory of Sports Injuries, Beijing, China
- Engineering Research Center of Sports Trauma Treatment Technology and Devices, Ministry of Education, Beijing, China
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Guo Z, Liu F. Progress in research on and classification of surgical methods of arthroscopic reconstruction of the ACL and ALL using a shared tendon graft through the femoral tunnel. Front Surg 2023; 10:1292530. [PMID: 38186395 PMCID: PMC10766812 DOI: 10.3389/fsurg.2023.1292530] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2023] [Accepted: 11/14/2023] [Indexed: 01/09/2024] Open
Abstract
Anterior cruciate ligament (ACL) tear is a common clinical injury, and ACL reconstruction has reached a very mature stage. However, with the accumulation of cases, scholars have found that isolated ACL reconstruction may not completely solve the problem of knee rotational stability. With the increase in our understanding of knee joint structure, ACL combined with anterolateral ligament (ALL) reconstruction has become accepted by most scholars, and this operation has also achieved good clinical results. At present, there is no unified surgical method for ACL combined with ALL reconstruction. There are differences in bone tunnel location, reconstruction methods, and graft selection. Compared with the independent reconstruction of the ACL and ALL during the operation, shared tendon graft reconstruction of the ACL and ALL has the advantages of preserving tendon and avoiding tunnel convergence. So far, there is no relevant literature summarizing the reconstruction of the ACL and ALL with a shared tendon graft. This paper reviews the anatomic study of the ALL, the study of isometric points, surgical indications, and surgical methods and their classification for shared tendon graft reconstruction of the ACL and ALL.
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Affiliation(s)
- Ziteng Guo
- Department of Orthopedics, The First Hospital of Qinhuangdao, Qinhuangdao, China
- School of Graduate, Hebei Medical University, Shijiazhuang, China
| | - Fei Liu
- Department of Orthopedics, The First Hospital of Qinhuangdao, Qinhuangdao, China
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Bormann M, Neidlein C, Neidlein N, Ehrl D, Jörgens M, Berthold DP, Böcker W, Holzapfel BM, Fürmetz J. High Prevalence of Persistent Measurable Postoperative Knee Joint Laxity in Patients with Tibial Plateau Fractures Treated by Open Reduction and Internal Fixation (ORIF). J Clin Med 2023; 12:5580. [PMID: 37685647 PMCID: PMC10488731 DOI: 10.3390/jcm12175580] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2023] [Revised: 08/24/2023] [Accepted: 08/25/2023] [Indexed: 09/10/2023] Open
Abstract
The development of post-traumatic osteoarthrosis after tibial plateau fracture (TPF) is multifactorial and can only be partially influenced by surgical treatment. There is no standardized method for assessing pre- and postoperative knee joint laxity. Data on the incidence of postoperative laxity after TPF are limited. The purpose of this study was to quantify postoperative laxity of the knee joint after TPF. Fifty-four patients (mean age 51 ± 11.9 years) were included in this study. There was a significant increase in anterior-posterior translation in 78.0% and internal rotation in 78.9% in the injured knee when compared to the healthy knee. Simple fractures showed no significant difference in laxity compared to complex fractures. When preoperative ligament damage and/or meniscal lesions were present and surgically treated by refixation and/or bracing, patients showed higher instability when compared to patients without preoperative ligament and/or meniscal damage. Patients with surgically treated TPF demonstrate measurable knee joint laxity at a minimum of 1 year postoperatively. Fracture types have no influence on postoperative laxity. This emphasizes the importance of recognizing TPF as a multifaceted injury involving both complex fractures and damage to multiple ligaments and soft tissue structures, which may require further surgical intervention after osteosynthesis.
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Affiliation(s)
- Markus Bormann
- Department of Orthopaedics and Trauma Surgery, Musculoskeletal University Center Munich (MUM), University Hospital, LMU Munich, Marchioninistraße 15, 81377 Munich, Germany
| | - Claas Neidlein
- Department of Orthopaedics and Trauma Surgery, Musculoskeletal University Center Munich (MUM), University Hospital, LMU Munich, Marchioninistraße 15, 81377 Munich, Germany
| | - Niels Neidlein
- Division of Gastroenterology, Brigham and Women’s Hospital, Harvard Medical School, Boston, MA 02115, USA
| | - Dennis Ehrl
- Department of Hand, Plastic and Aesthetic Surgery, LMU Munich, 81377 Munich, Germany
| | - Maximilian Jörgens
- Department of Orthopaedics and Trauma Surgery, Musculoskeletal University Center Munich (MUM), University Hospital, LMU Munich, Marchioninistraße 15, 81377 Munich, Germany
| | - Daniel P. Berthold
- Department of Orthopaedics and Trauma Surgery, Musculoskeletal University Center Munich (MUM), University Hospital, LMU Munich, Marchioninistraße 15, 81377 Munich, Germany
| | - Wolfgang Böcker
- Department of Orthopaedics and Trauma Surgery, Musculoskeletal University Center Munich (MUM), University Hospital, LMU Munich, Marchioninistraße 15, 81377 Munich, Germany
| | - Boris Michael Holzapfel
- Department of Orthopaedics and Trauma Surgery, Musculoskeletal University Center Munich (MUM), University Hospital, LMU Munich, Marchioninistraße 15, 81377 Munich, Germany
| | - Julian Fürmetz
- Department of Trauma Surgery, Trauma Center Murnau, 82418 Murnau am Staffelsee, Germany
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Guo Z, Wang X, Liu G, Lu Y, Bai Y, Lv J, Liu F. Localizing the position of the Segond fracture bed under CT measurements to determine the functional tibial insertion of an anterolateral ligament. Front Surg 2023; 10:1235750. [PMID: 37638122 PMCID: PMC10457158 DOI: 10.3389/fsurg.2023.1235750] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2023] [Accepted: 07/21/2023] [Indexed: 08/29/2023] Open
Abstract
Background Many studies have confirmed the existence of ligament structures in the anterolateral region of the knee that maintain rotational stability of the knee joint, namely, the anterolateral ligament (ALL). Most scholars believe that knee joint reconstruction should be considered during revision surgery and a high level of pivot displacement test (stage 2 or 3). During ALL reconstruction, the choice of ligament reconstruction sites affects the success rate and prognosis of the operation. Therefore, the choice of ligament reconstruction sites is particularly important. There is little research on the lateral ALL tibia insertion point, and most clinicians use the midpoint Gerdy's tubercle and fibular head as insertion points. However, the reconstruction effect is not ideal. Objective This study aims to measure the position of the Segond fracture bed on CT images to determine the ALL position of the tibia. Method To determine the position of the Segond fracture bone bed, the CT AM Volume Share 2 system was used to manually measure the position of bone fragments in 23 Segond fracture patients. Using the highest point of Gerdy's tubercle in the CT axial slices and the outermost point of the fibular head in the CT axial slices as reference points, the direction and angle of the CT slices were adjusted to ensure that the highest point of the Gerdy tubercle, the outermost point of the fibular head, and the center of Segond fracture bed were in the same sagittal slice. A CT sagittal slice measures the vertical distance from the center of the Segond fracture bed to the Gerdy-fibular line segment (G-F line segment), which is the line connecting the highest point of the segment to the outermost point of the fibula. The distance from the vertical point at the center of the Segond fracture bed of the G-F line to the highest point of the Gerdy tubercle was measured. All measurements were performed using the same measurement standard and were expressed as a percentage of the length of the G-F line. The measured results were statistically analyzed using SPSS 25.0 descriptive statistical research methods. Results The average length of the G-F segment measured on CT images was 39.6 ± 2.0 mm, and the average vertical length from the center of the Segond fracture bed to the G-F segment was 13.1 ± 1.1 mm, accounting for 33.2% ± 2.1% of the length of the G-F segment. The length from the vertical point of the fracture bed on the G-F line segment to the highest point of the Gerdy tubercle was 14.7 ± 1.3 mm, accounting for 37.1% ± 2.9% of the length of the G-F segment. Conclusion Through the study of the CT measurement of the Segond fracture location, we obtained the location of the functional tibial insertion of ALL, which is different from the anatomical insertion of ALL and is more inclined to the Gerdy tubercle and above, which has reference value for the treatment of recovering the function of anterolateral ligament after reconstruction.
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Affiliation(s)
- Ziteng Guo
- Department of Orthopedics, The First Hospital of Qinhuangdao, Qinhuangdao, China
- School of Graduate, Hebei Medical University, Shijiazhuang, China
| | - Xuyang Wang
- Department of Orthopedics, The First Hospital of Qinhuangdao, Qinhuangdao, China
| | - Guoshuai Liu
- Department of Orthopedics, The First Hospital of Qinhuangdao, Qinhuangdao, China
| | - Yang Lu
- Department of Orthopedics, The First Hospital of Qinhuangdao, Qinhuangdao, China
| | - Yuxi Bai
- Department of Orthopedics, The First Hospital of Qinhuangdao, Qinhuangdao, China
| | - Jian Lv
- Department of Orthopedics, The First Hospital of Qinhuangdao, Qinhuangdao, China
| | - Fei Liu
- Department of Orthopedics, The First Hospital of Qinhuangdao, Qinhuangdao, China
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Wait TJ, Kolaczko JG, Stevanovic O, Orahovats A, Boublik M, Mayer SW, Genuario JW. Lateral Extra-articular Tenodesis: The Onlay Technique. Arthrosc Tech 2023; 12:e1383-e1389. [PMID: 37654867 PMCID: PMC10466252 DOI: 10.1016/j.eats.2023.04.007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/17/2023] [Accepted: 04/12/2023] [Indexed: 09/02/2023] Open
Abstract
Tibial anterolateral rotary instability associated with anterior cruciate ligament (ACL) tears is a well-documented and difficult problem with a long history of solutions. The lateral extra-articular tenodesis (LET) has undergone multiple refinements in technique, largely focusing on the femoral site insertion using either an interference screw versus a staple for adequate fixation. In this article, we present an improved technique using a suture anchor as an alternative to a staple or an interference screw with secure fixation to insert the LET graft onto the femur. This technique diminishes the chance of ACL tunnel-LET drilling convergence, minimizes the footprint required for adequate graft fixation, and allows the surgeon to dial in the correct tension necessary for adequate augmentation of an ACL reconstruction.
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Cheng YH, Chiu CH, Chen ACY, Chan YS, Hsu KY. Outcomes of Combined Anterior Cruciate Ligament and Anterolateral Ligament Reconstruction According to GNRB Arthrometer Measurement. MEDICINA (KAUNAS, LITHUANIA) 2023; 59:medicina59020366. [PMID: 36837568 PMCID: PMC9966521 DOI: 10.3390/medicina59020366] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 01/10/2023] [Revised: 02/02/2023] [Accepted: 02/11/2023] [Indexed: 02/17/2023]
Abstract
Background and Objectives: To investigate the prognosis of combined anterior cruciate ligament (ACL) and anterolateral ligament (ALL) reconstruction, we used a GNRB (Genourob, Laval, France) arthrometer to measure surgical outcomes. Materials and Methods: This retrospective study reviewed patients who underwent combined ACL and ALL reconstruction and had a minimum follow-up of 2 years. Subjective outcomes, namely the International Knee Documentation Committee (IKDC) evaluation form scale scores and Lysholm scores, were evaluated preoperatively and postoperatively. We used a GNRB arthrometer to test the side-to-side laxity under pressures of 134 and 200 N, and we calculated the differential of the slope of the curves. We also recorded complications. Results: Our study examined 18 patients (mean age: 30.56 ± 8.9 years, range: 19-53) with a mean follow-up of 27.37 ± 3.4 months (range: 24-36). Both Lysholm and IKDC scores were significantly improved following the operation. The GNRB arthrometer measured mean anteroposterior laxity side-to-side as 0.76 ± 0.78 mm and 0.82 ± 0.8 mm under pressures of 134 and 200 N, respectively. The mean side-to-side differential slope under 200 N was 3.52 ± 2.17 μm/N. These values indicated that patients displayed no graft tear or low functional knee instability. All patients had a grade 3 pivot shift preoperatively; only two patients had a grade 1 pivot shift postoperatively, with the rest having a negative pivot shift. Conclusions: Our study revealed that combined ACL and ALL reconstruction has an excellent prognosis. GNRB measurement demonstrated excellent stability, and most patients had no residual pivot shift.
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Affiliation(s)
- You-Hung Cheng
- Department of Orthopedic Surgery, New Taipei Municipal Tu-Cheng Hospital, Chang Gung Memorial Hospital, New Taipei City 236, Taiwan
- Comprehensive Sports Medicine Center, Linkou Chang Gung Memorial Hospital, Taoyuan City 333, Taiwan
| | - Chih-Hao Chiu
- Comprehensive Sports Medicine Center, Linkou Chang Gung Memorial Hospital, Taoyuan City 333, Taiwan
- Department of Orthopedic Surgery, Linkou Chang Gung Memorial Hospital, Taoyuan City 333, Taiwan
| | - Alvin Chao-Yu Chen
- Comprehensive Sports Medicine Center, Linkou Chang Gung Memorial Hospital, Taoyuan City 333, Taiwan
- Department of Orthopedic Surgery, Linkou Chang Gung Memorial Hospital, Taoyuan City 333, Taiwan
| | - Yi-Sheng Chan
- Comprehensive Sports Medicine Center, Linkou Chang Gung Memorial Hospital, Taoyuan City 333, Taiwan
- Department of Orthopedic Surgery, Linkou Chang Gung Memorial Hospital, Taoyuan City 333, Taiwan
| | - Kuo-Yao Hsu
- Department of Orthopedic Surgery, New Taipei Municipal Tu-Cheng Hospital, Chang Gung Memorial Hospital, New Taipei City 236, Taiwan
- Comprehensive Sports Medicine Center, Linkou Chang Gung Memorial Hospital, Taoyuan City 333, Taiwan
- Department of Orthopedic Surgery, Linkou Chang Gung Memorial Hospital, Taoyuan City 333, Taiwan
- Correspondence: ; Tel.: +886-3-328-1200 (ext. 2163); Fax: +886-3-327-8113
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Randhawa S, Stavinoha TJ, Trivedi S, Ganley TJ, Tompkins M, Ellis H, Wilson P, Green DW, Fabricant PD, Musahl V, Shea KG. Paediatric reference anatomy for ACL reconstruction and secondary anterolateral ligament or lateral extra-articular tenodesis procedures. J ISAKOS 2022; 7:206-213. [PMID: 35589081 DOI: 10.1016/j.jisako.2022.04.008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2021] [Revised: 03/04/2022] [Accepted: 04/30/2022] [Indexed: 12/24/2022]
Abstract
OBJECTIVES For iliotibial band (ITB) lateral extra-articular tenodesis or anterolateral ligamentous/capsular reconstruction with anterior cruciate ligament reconstruction, a clear understanding of the referenced anterolateral knee anatomy is critical-especially given the risk of injury to the physis or key anterolateral structures in the paediatric population, which is at high-risk for primary and secondary anterior cruciate ligament injury. The purpose of this study was to quantitatively assess the anatomy of the knee physes, paediatric lateral collateral ligament (LCL) origin, popliteus origin and ITB tibial insertion. METHODS Nine paediatric cadaveric knee specimens with average age 4.2 years (range 2 months-10 years) underwent dissection to identify the LCL's and popliteus' femoral origins and the ITB's tibial insertion. Metallic marking pins demarcated precise anatomic attachment sites, and subsequent computerised tomography scans enabled quantified measurements among them. RESULTS LCL & Popliteus: On the femur, the popliteus origin lay consistently deep to the LCL and inserted both distally and anteriorly to the LCL, a mean distance of 4.6 mm (range 1.9-7.6; standard deviation 2.0). From the joint line, the LCL lay a mean distance of 12.5 mm proximally while the popliteus measured a mean of 8.2 mm. Both were consistently distal to the physis. The LCL was a mean distance of 4.4 mm (range 1.0-9.5) and the popliteus was a mean distance of 8.2 (range 1.7-12.5) from the physis. ITB insertion: The ITB insertion at Gerdy's tubercle had an average footprint measuring 28.2 mm2 (range 10.3-58.4) and the ITB centre lay proximal to the physis in 6 specimens (mean age 4.2 years, median 2.5 years) and distal in 3 specimens (mean age 1.5 years, median 4 months). Mean distance from the footprint centre to the physis was 1.6 mm proximal (range 7.1 proximal - 2.2 distal). CONCLUSION This study describes relative and quantitative positions of the femoral LCL and popliteus origins and tibial ITB attachment and their respective physeal relationships. Knowledge of paediatric anterolateral knee anatomy will help guide essential future research and procedures providing extra-articular anterolateral rotatory stabilisation and may help reduce iatrogenic physeal injury risk. LEVEL OF EVIDENCE N/A (descriptive anatomic study).
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Affiliation(s)
- Sahej Randhawa
- Lucile Packard Children's Hospital, Stanford University School of Medicine, 725 Welch Road, Palo Alto, CA 94304, USA; UC San Diego School of Medicine, 9500 Gilman Dr, La Jolla, CA 92092, USA
| | - Tyler J Stavinoha
- Lucile Packard Children's Hospital, Stanford University School of Medicine, 725 Welch Road, Palo Alto, CA 94304, USA
| | - Sunny Trivedi
- Lucile Packard Children's Hospital, Stanford University School of Medicine, 725 Welch Road, Palo Alto, CA 94304, USA; University of Florida College of Medicine, 1600 SW Archer Rd, Gainesville, FL 32610, USA
| | - Theodore J Ganley
- The Children's Hospital of Philadelphia, 3401 Civic Center Blvd, Philadelphia, PA 19104, USA
| | - Marc Tompkins
- University of Minnesota, 2450 Riverside Ave., Minneapolis, MN 55455, USA
| | - Henry Ellis
- Texas Scottish Rite Hospital for Children, 2222 Welborn St, Dallas, TX 75219, USA
| | - Phil Wilson
- Texas Scottish Rite Hospital for Children, 2222 Welborn St, Dallas, TX 75219, USA
| | - Daniel W Green
- Hospital for Special Surgery, 535 E 70th St, New York, NY 10021, USA
| | - Peter D Fabricant
- Hospital for Special Surgery, 535 E 70th St, New York, NY 10021, USA
| | - Volker Musahl
- University of Pittsburgh, UPMC Freddie Fu Sports Medicine Center, Dept of Orthopedics, 3200 S. Water St, PA 15203, USA
| | - Kevin G Shea
- Lucile Packard Children's Hospital, Stanford University School of Medicine, 725 Welch Road, Palo Alto, CA 94304, USA.
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Sabatini L, Capella M, Vezza D, Barberis L, Camazzola D, Risitano S, Drocco L, Massè A. Anterolateral complex of the knee: State of the art. World J Orthop 2022; 13:679-692. [PMID: 36159618 PMCID: PMC9453282 DOI: 10.5312/wjo.v13.i8.679] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/28/2021] [Revised: 03/07/2022] [Accepted: 07/25/2022] [Indexed: 02/06/2023] Open
Abstract
Rotatory instability of the knee represents the main reason for failure and poor clinical outcomes regarding anterior cruciate ligament (ACL) reconstruction techniques. It is now clear that the anterolateral complex (ALC) of the knee possesses a fundamental role, in association with the ACL, in controlling internal rotation. Over the past decade, ever since the anterolateral ligament has been identified and described as a distinct structure, there has been a renewed interest in the scientific community about the whole ALC: Lateral extra-articular tenodesis have made a comeback in association with ACL reconstructions to improve functional outcomes, reducing the risks of graft failure and associated injuries. Modern ACL reconstruction surgery must therefore investigate residual instability and proceed, when necessary, to extra-articular techniques, whether functional tenodesis or anatomical reconstruction.This review aims to investigate the latest anatomical and histological descriptions, and the role in rotational control and knee biomechanics of the ALC and its components. The diagnostic tools for its identification, different reconstruction techniques, and possible surgical indications are described.. In addition, clinical and functional results available in the literature are reported.
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Affiliation(s)
- Luigi Sabatini
- Department of Orthopaedics and Traumatology, Università degli Studi di Torino, Torino 10126, Italy
| | - Marcello Capella
- Department of Orthopaedics and Traumatology, Università degli Studi di Torino, Torino 10126, Italy
| | - Daniele Vezza
- Department of Orthopaedics and Traumatology, Università degli Studi di Torino, Torino 10126, Italy
| | - Luca Barberis
- Department of Orthopaedics and Traumatology, Università degli Studi di Torino, Torino 10126, Italy
| | - Daniele Camazzola
- Department of Orthopaedics and Traumatology, Università degli Studi di Torino, Torino 10126, Italy
| | - Salvatore Risitano
- Department of Orthopaedics and Traumatology, Università degli Studi di Torino, Torino 10126, Italy
| | - Luca Drocco
- Department of Orthopaedics and Traumatology, Università degli Studi di Torino, Torino 10126, Italy
| | - Alessandro Massè
- Department of Orthopaedics and Traumatology, Università degli Studi di Torino, Torino 10126, Italy
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Xu J, Han K, Lee TQ, Xu C, Su W, Chen J, Yu J, Dong S, Zhao J. Anterolateral Structure Reconstruction Similarly Improves the Stability and Causes Less Overconstraint in Anterior Cruciate Ligament-Reconstructed Knees Compared With Modified Lemaire Lateral Extra-articular Tenodesis: A Biomechanical Study. Arthroscopy 2022; 38:911-924. [PMID: 34358641 DOI: 10.1016/j.arthro.2021.06.023] [Citation(s) in RCA: 19] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/07/2021] [Revised: 06/13/2021] [Accepted: 06/29/2021] [Indexed: 02/02/2023]
Abstract
PURPOSE To compare the kinematics of anterolateral structure (ALS) reconstruction (ALSR) and lateral extra-articular tenodesis (LET) in ACL-ALS-deficient knees with anterior cruciate ligament (ACL) reconstruction. METHODS Ten fresh-frozen cadaveric knees with the following conditions were tested: (1) intact, (2) ACL-ALS deficiency, (3) ACL reconstruction (ACLR), (4) ACLR combined with ALSR (ACL-ALSR) or LET (ACLR+LET). Anterior translation and tibial internal rotation were measured with 90-N anterior load and 5 N·m internal torque at 0°, 30°, 60°, and 90°. The anterolateral translation and internal rotation were also measured during a simulated pivot-shift test at 0°, 15°, 30°, and 45°. The knee kinematic changes in all reconstructions were compared with each other, with intact knees as the baseline. RESULTS Isolated ACLR failed to restore native knee kinematics in ACL-ALS-deficient knees. Both ACL-ALSR and ACLR+LET procedures decreased the anterior instability of the ACLR. However, ACLR+LET caused overconstraints in internal rotation at 30° (-3.73° ± 2.60°, P = .023), 60° (-4.96° ± 2.22°, P = .001) and 90° (-6.14° ± 1.60°, P < .001). ACL-ALSR also overconstrained the knee at 60° (-3.65° ± 1.90°, P < .001) and 90° (-3.18° ± 2.53°, P < .001). For a simulated pivot-shift test, both combined procedures significantly reduced the ACLR instability, with anterolateral translation and internal rotation being overconstrained in ACLR+LET at 30° (-3.32 mm ± 3.89 mm, P = .005; -2.58° ± 1.61°, P < .001) and 45° (-3.02 mm ± 3.95 mm, P = .012; -3.44° ± 2.86°, P < .001). However, the ACL-ALSR overconstrained only the anterolateral translation at 30° (-1.51 mm ± 2.39 mm, P = .046) and internal rotation at 45° (-2.09° ± 1.70°, P < .001). There were no significant differences between the two combined procedures at most testing degrees in each testing state, except for the internal rotation at 30° (P = .007) and 90° (P = .032) in internal rotation torque. CONCLUSION ACL reconstruction alone did not restore intact knee kinematics in knees with concurrent ACL tears and severe ALS injury (ACL-ALS-deficient status). Both ACL-ALSR and ACLR+LET procedures restored knee stability at some flexion degrees, with less overconstraints in internal rotation resulting from ACL-ALSR. CLINICAL RELEVANCE For patients with combined ACL tears and severe ALS deficiency, isolated ACLR probably results in residual rotational and pivot-shift instability. Both ACL-ALSR and ACLR+LET show promise for the improvement of knee stability, whereas ACL-ALSR has less propensity for knee overconstraint.
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Affiliation(s)
- Junjie Xu
- Department of Sports Medicine, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai, China
| | - Kang Han
- Department of Sports Medicine, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai, China
| | - Thay Q Lee
- Orthopaedic Biomechanics Laboratory, Congress Medical Foundation, Pasadena, California, U.S.A
| | - Caiqi Xu
- Department of Sports Medicine, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai, China
| | - Wei Su
- Department of Sports Medicine, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai, China
| | - Jiebo Chen
- Department of Sports Medicine, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai, China
| | - Jiakuo Yu
- Knee Surgery Department of the Institute of Sports Medicine & Beijing Key Laboratory of Sports Injuries, Peking University Third Hospital, Beijing, China
| | - Shikui Dong
- Department of Sports Medicine, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai, China.
| | - Jinzhong Zhao
- Department of Sports Medicine, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai, China.
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Devitt BM, Batty LM. High Rate of Initially Overlooked Kaplan Fiber Complex Injuries in Patients With Isolated Anterior Cruciate Ligament Injury: Letter to the Editor. Am J Sports Med 2022; 50:NP1-NP3. [PMID: 34984954 DOI: 10.1177/03635465211049385] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
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11
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The Cadaveric Studies and the Definition of the Antero-Lateral Ligament of the Knee: From the Anatomical Features to the Patient-Specific Reconstruction Surgical Techniques. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2021; 18:ijerph182312852. [PMID: 34886585 PMCID: PMC8657304 DOI: 10.3390/ijerph182312852] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/21/2021] [Revised: 11/23/2021] [Accepted: 11/30/2021] [Indexed: 11/16/2022]
Abstract
Cadaver studies represented a milestone in surgical orthopaedic research, and still today they play a crucial role in the achievement of new knowledge about joint disease behaviour and treatment. In this review, an overview of the cadaver studies available in the literature about the anatomy, role, and treatment of the antero-lateral ligament (ALL) of the knee was performed. The aim of the review was to describe and gain more insight into the part of in vitro study in understanding knee joint anatomy and biomechanics, and in developing surgical reconstruction techniques. The findings of the review showed that cadaver studies had, and will continue to have, a key role in the research of knee joint biomechanics and surgical reconstruction. Moreover, they represent a powerful tool to develop and test new devices which could be useful in clinical and surgical practice.
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Jacquet C, Pioger C, Seil R, Khakha R, Parratte S, Steltzlen C, Argenson JN, Pujol N, Ollivier M. Incidence and Risk Factors for Residual High-Grade Pivot Shift After ACL Reconstruction With or Without a Lateral Extra-articular Tenodesis. Orthop J Sports Med 2021; 9:23259671211003590. [PMID: 33997078 PMCID: PMC8113945 DOI: 10.1177/23259671211003590] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/07/2020] [Accepted: 12/04/2020] [Indexed: 01/26/2023] Open
Abstract
Background Residual rotatory knee laxity at midterm follow-up after isolated anterior cruciate ligament reconstruction (ACLR) versus ACLR with lateral extra-articular tenodesis (LET) remains an issue. Purpose/Hypothesis To evaluate the outcomes of ACLR with or without additional LET at a minimum 2-year follow-up in patients with preoperative high-grade pivot shift (PS). Our hypothesis was that the addition of LET would decrease the risk of secondary meniscal injury and the presence of residual high-grade PS at follow-up. Study Design Cohort study; Level of evidence, 3. Methods A retrospective analysis performed at 3 sports medicine centers identified 266 study patients; all had a high-grade PS (grade 2 or 3) preoperatively and underwent isolated ACLR with or without LET. Four different ACLR techniques were used: single-strand quadrupled semitendinosus (ST4) ACLR without LET (ST4 group; n = 55), ST4 with anatomic LET (ST4+LET group; n = 77), bone-patellar tendon and modified Lemaire LET (BTB+LET group; n = 43), and quadriceps tendon and modified Lemaire LET (QT+LET group; n = 91). At follow-up, we evaluated for the presence of high-grade (grade ≥2) PS. Preoperative meniscal tears and their treatment were recorded. Results Overall, 185 (69.5%) patients had at least 1 meniscal tear at index surgery. The mean follow-up period was 44.3 months; 47 (17.7%) patients had a new meniscal tear and 64 (24%) patients had a high-grade PS at follow-up. Compared with meniscal repair, significant predictors for high-grade PS at follow-up were meniscectomy (odds ratio [OR] = 2.65 [95% CI, 1.19-5.63]; P = .02) and nonrepair of preoperative meniscal tear (OR = 3.26 [95% CI, 1.27-9.43]; P = .007). The appearance of a new symptomatic meniscal tear was the strongest significant predictor of high-grade PS at follow-up (OR = 4.31 [95% CI, 2.31-8.06]; P < .001). No significant correlation was observed between the addition of LET and the presence of high-grade PS at follow-up. Conclusion In the current study, 1 in 4 patients with high-grade PS before ACLR with or without LET was at risk of residual rotatory knee laxity at mean 44-month follow-up, regardless of the technique used. Repairing a pre-existing meniscal lesion was more effective than performing LET to decrease the presence of a high-grade PS at follow-up.
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Affiliation(s)
- Christophe Jacquet
- Institute of Movement and Locomotion, Department of Orthopedics and Traumatology, St Marguerite Hospital, Marseille, France
| | - Charles Pioger
- Institute of Movement and Locomotion, Department of Orthopedics and Traumatology, St Marguerite Hospital, Marseille, France
| | - Romain Seil
- Orthopaedic Department, CH Luxembourg, Luxembourg
| | - Raghbir Khakha
- Institute of Movement and Locomotion, Department of Orthopedics and Traumatology, St Marguerite Hospital, Marseille, France
| | | | - Camille Steltzlen
- Orthopaedic Department CH Mignot, rue de Versailles, Le Chesnay, France
| | - Jean-Noel Argenson
- Institute of Movement and Locomotion, Department of Orthopedics and Traumatology, St Marguerite Hospital, Marseille, France
| | - Nicolas Pujol
- Orthopaedic Department CH Mignot, rue de Versailles, Le Chesnay, France
| | - Matthieu Ollivier
- Institute of Movement and Locomotion, Department of Orthopedics and Traumatology, St Marguerite Hospital, Marseille, France
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Xu J, Han K, Su W, Jiang J, Yan X, Yu J, Dong S, Zhao J. A Secondary Injury of the Anterolateral Structure Plays a Minor Role in Anterior and Anterolateral Instability of Anterior Cruciate Ligament-Deficient Knees in the Case of Functional Iliotibial Band. Arthroscopy 2021; 37:1182-1191. [PMID: 33227322 DOI: 10.1016/j.arthro.2020.10.038] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/08/2020] [Revised: 10/24/2020] [Accepted: 10/24/2020] [Indexed: 02/02/2023]
Abstract
PURPOSE To analyze the contribution of a secondary anterolateral structure (ALS) deficiency to knee instability based on anterior cruciate ligament (ACL) deficiency, in the condition of a functional iliotibial band (ITB). METHODS Nine freshly-frozen cadaveric knees were sectioned sequentially to create ACL deficiency and ACL-ALS deficiency, using intact knees before sectioning as controls. When ITB was tensioned with 30 N, 4 separate aspects of knee instability were tested as follows: anterior translation in 90 N anterior load, isolated internal rotation in 5 N·m internal rotational torque from 0° to 90° in 15° increments, and anterolateral translation and internal rotation during a simulated pivot-shift test at 0°, 15°, 30°, and 45°. The contribution of ACL deficiency alone and additional ALS deficiency to knee instability were evaluated. RESULTS The addition of an ALS lesion produced no significant exacerbation of either anterior translational or pivot shift instability in ACL-deficient knees. Additional ALS deficiency in an ACL-deficient knee resulted in a significant increase in isolated internal rotation from 45° to 90° (P = .001 at 45° and P < .001 in other cases). After sequentially sectioning, the contribution to instability of additional ALS deficiency to the entire instability in ACL-ALS-deficient knees was significantly smaller than that of ACL deficiency alone during anterior load and pivot-shift test (P < .001 in all cases), but significantly contributed more to isolated internal rotational instability at 60° (P = .011) and 90° (P = .015). CONCLUSIONS When ITB was tensioned, ALS played a minor role in controlling both anterior or pivot shift stability in ACL-deficient knees but a major role in restraining isolated internal rotation from 45° to 90°. CLINICAL RELEVANCE In the condition of functional ITB, concomitant ALS injury might not exacerbate anterior and pivot-shift instability after ACL rupture, while affecting isolated internal rotation stability at higher flexion.
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Affiliation(s)
- Junjie Xu
- Department of Sports Medicine, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai, China
| | - Kang Han
- Department of Sports Medicine, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai, China
| | - Wei Su
- Department of Sports Medicine, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai, China
| | - Jia Jiang
- Department of Sports Medicine, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai, China
| | - Xiaoyu Yan
- Department of Sports Medicine, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai, China
| | - Jiakuo Yu
- Knee Surgery Department of the Institute of Sports Medicine & Beijing Key Laboratory of Sports Injuries, Peking University Third Hospital, Beijing, China
| | - Shikui Dong
- Department of Sports Medicine, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai, China.
| | - Jinzhong Zhao
- Department of Sports Medicine, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai, China.
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14
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Delpupo FVB, de Fúcio Lizardo JH, Baptista JDS. The anterolateral ligament of the knee is not a solid structure in human fetuses. Surg Radiol Anat 2021; 43:1117-1122. [PMID: 33416973 DOI: 10.1007/s00276-020-02665-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2020] [Accepted: 12/19/2020] [Indexed: 11/25/2022]
Abstract
PURPOSE The purpose of this study was to investigate if the anterolateral ligament of the knee (ALL) is present in the human fetus and describe its topography along with other structures of the region. METHODS Forty human fetuses knee joints, at mean age 34 weeks (± 2.57 weeks), fixed in 10% formalin, were submitted to cross-sectional dissection and mesoscopic analysis. RESULTS The ALL was not identified, although the usual topography of the region was identified in all specimens: skin, subcutaneous tissue, iliotibial tract (ITT), fibular collateral ligament, popliteal muscle tendon, lateral meniscus, patellar ligament, infrapatellar fat pad, lateral patellar retinaculum, knee joint capsule, lateral inferior genicular vessels, and the biceps femoris tendon. The ITT reveals anterior (n = 12) and lateral thickening (n = 17) in some specimens. This thickening was found in both knees of the same subject in 6/20 specimens. CONCLUSION The anterolateral ligament of the knee is not a congenital or solid structure. Our results suggest that the ALL may be a deep layer of the ITT or part of the knee joint capsule, or its identification is evaluator dependent.
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Affiliation(s)
- Fernanda Vieira Botelho Delpupo
- Laboratory of Applied Morphology-LEMA, Universidade Federal Do Espirito Santo, Av. Marechal Campos, 1468, Maruipe, Vitoria, Espirito Santo, 29043-900, Brazil
| | - Juliana Hott de Fúcio Lizardo
- Laboratory of Applied Morphology-LEMA, Universidade Federal Do Espirito Santo, Av. Marechal Campos, 1468, Maruipe, Vitoria, Espirito Santo, 29043-900, Brazil
| | - Josemberg da Silva Baptista
- Laboratory of Applied Morphology-LEMA, Universidade Federal Do Espirito Santo, Av. Marechal Campos, 1468, Maruipe, Vitoria, Espirito Santo, 29043-900, Brazil.
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15
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Mechanical Properties and Characteristics of the Anterolateral and Collateral Ligaments of the Knee. APPLIED SCIENCES-BASEL 2020. [DOI: 10.3390/app10186266] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Abstract
Biomechanical studies assessing the major knee ligaments, such as the anterior cruciate ligament, posterior cruciate ligament, medial collateral ligament (MCL), and lateral collateral ligament (LCL), have been conducted using various methodologies. However, despite the anterolateral ligament (ALL) being regarded as the important ligament for the stability of the knee, a lack of biomechanical research focusing on the ALL exists to date. Moreover, studies assessing the relative mechanical properties of each ligament of the knee are insufficient. Therefore, this study examined the mechanical properties of the ALL, MCL, and LCL and considered the relative differences between these ligaments. Twenty-one fresh cadaver knees were chosen to investigate the mechanical properties. The width, thickness, and length were measured. The stiffness, ultimate load, and elastic modulus were also tested. The MCL showed the greatest ultimate load (498.5 N) and the highest stiffness (71.97 N/mm), and the ALL presented the smallest ultimate load (146.64 N) and lowest stiffness (42.62 N/mm). Meanwhile, the LCL was second concerning the ultimate load (263.22 N) and stiffness (69.70 N/mm). The elastic modulus of the LCL (493.86 MPa) was greater than those of both the MCL and ALL (326.75 MPa and 345.27 MPa, respectively). There was no difference between the sides according to the different properties of all the ligaments. A sex difference was apparent only concerning the ultimate load for all the ligaments. Each ligament showed similar stiffness irrespective of its size; for this reason, stiffness should be considered initially and while conducting biomechanical simulations of these ligaments.
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16
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Ahn JH, Koh IJ, McGarry MH, Patel NA, Lin CC, Lee TQ, Ryu B. Knee laxity in anterolateral complex injuries versus medial meniscus posterior horn injuries in anterior cruciate ligament injured knees: A cadaveric study. Orthop Traumatol Surg Res 2020; 106:945-955. [PMID: 32753357 DOI: 10.1016/j.otsr.2020.03.025] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/12/2019] [Revised: 02/28/2020] [Accepted: 03/04/2020] [Indexed: 02/03/2023]
Abstract
INTRODUCTION There is considerable debate regarding the function of anterolateral knee structures, including the anterolateral ligament (ALL) and anterolateral capsule, as knee stabilizers in anterior cruciate ligament (ACL) injured knees. Medial meniscus posterior horn (MMPH) injuries have also been associated with increased knee laxity in ACL injured knees. The purpose of this cadaveric biomechanical study was to compare the effects of the anterolateral complex (ALC) injury and meniscectomy of MMPH on knee laxity in ACL injured knees. HYPOTHESIS ALC injury would have a greater effect on internal rotational laxity in ACL-injured knee than meniscectomy of MMPH. MATERIAL AND METHODS Matched-pair 10 fresh-frozen cadaveric knees underwent biomechanical evaluation of knee laxity. After testing the intact knee and ACL sectioned knee (ACL-) in matched-pair 10 fresh-frozen cadaveric knees, two groups were established: an ALC sectioning (ACL-/ALC-) group (n=5) and a MMPH meniscectomy (ACL-/MMPH-) group (n=5). Knee laxity was measured in terms of internal-external rotation, anterior-posterior translation, and varus-valgus angulation for each condition at knee flexion angles of 0°, 30°, 60° and 90°. RESULTS After the additional sectioning of the ALC (ACL-/ALC-), the mean internal rotation at 0°, 30°, 60° and 90° of knee flexion showed the greater internal rotation laxity compared than intact knee (p=0.020, 0.011, 0.005 and<0.001). It also significantly increased anterior translation from ACL- at 30° and 60° (p=0.011 and 0.005). In contrast, additional meniscectomy of the MMPH (ACL-/MMPH-) significantly increased external rotation laxity compared to intact knee (p=0.021, 0.018 and 0.024) and ACL- (p=0.037, 0.011 and 0.025) at 30°, 60° and 90°. ACL-/MMPH- also resulted in significantly increased anterior translation from ACL- at 30°, 60° and 90° (p=0.004, 0.008 and 0.002). DISCUSSION In conclusion, the anterolateral complex, which include the ALL and anterolateral capsule, may play an important role in stabilizing the knee against internal rotation and anterior translation, while the MMPH may contribute to resisting external rotation and anterior translation stability in ACL-injured knee. LEVEL OF EVIDENCE II, controlled laboratory study.
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Affiliation(s)
- Ji Hyun Ahn
- Department of Orthopaedic Surgery, Dongguk University Ilsan Hospital, Goyangsi, Gyeonggido, South Korea.
| | - In Jun Koh
- Department of Orthopaedic Surgery, Eunpyeong St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, South Korea
| | - Michelle H McGarry
- Orthopaedic Biomechanics Laboratory, Congress Medical Foundation, Pasadena, California, USA
| | - Nilay A Patel
- Department of Orthopaedic Surgery, University of California, Irvine, California, USA
| | - Charles C Lin
- Department of Orthopaedic Surgery, NYU Langone Orthopedic Hospital, New York, New York, USA
| | - Thay Q Lee
- Orthopaedic Biomechanics Laboratory, Congress Medical Foundation, Pasadena, California, USA
| | - Byeongyeong Ryu
- Department of Orthopaedic Surgery, Dongguk University Ilsan Hospital, Goyangsi, Gyeonggido, South Korea
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Tactile techniques are associated with a high variability of tunnel positions in lateral extra-articular tenodesis procedures. Arch Orthop Trauma Surg 2020; 140:495-501. [PMID: 31974696 DOI: 10.1007/s00402-020-03331-8] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/18/2018] [Indexed: 01/12/2023]
Abstract
INTRODUCTION The purpose of this study was to determine the variability of femoral tunnel positions applying two different lateral extra-articular tenodesis (LET) techniques, guiding on the tactile identification (1) of the lateral epicondyle (Lemaire procedure) and (2) of the Kaplan fibre attachments on the distal femur (MacIntosh procedure) and to analyse whether one of these procedures is more suitable for reliable femoral tunnel positioning in LET procedures. MATERIALS AND METHODS Two experienced knee surgeons determined femoral tunnel positions in ten fresh-frozen cadaveric knee specimens according to the modified Lemaire and MacIntosh techniques. Tunnel positions were measured on true lateral radiographs as absolute distances from the posterior cortex line (anterior-posterior direction) and from a perpendicular line intersecting the contact of the posterior femoral condyle (proximal-distal direction), respectively. Further, tunnel positions were measured relatively to the femur height. An independent F test was used to compare variances between Lemaire and MacIntosh tunnel positions and between anterior-posterior and proximal-distal directions. RESULTS The mean Lemaire and MacIntosh positions were found 2.7 ± 5.5 mm and 3.6 ± 3.4 mm anterior to the posterior cortex line, and 7.5 ± 5.0 mm and 17.3 ± 6.9 mm proximal to the perpendicular line intersecting the contact of the posterior femoral condyle, respectively. Mean Lemaire and MacIntosh positions, relative to the femur height, were found at 8.8% and 10.9% (anterior-posterior) and 22.2% and 50.8% (proximal-distal), respectively. Variability in tunnel positioning was observed for both techniques, showing no significant differences in the variance (p > 0.05) and partially overlapping tunnel positions of both techniques. The overall variance of tunnel positions, however, was significantly greater in proximal-distal than in anterior-posterior direction (F = 2.673, p < 0.038). CONCLUSIONS Femoral tunnel positions in LET procedures have a high degree of variability and inaccuracy. Palpating anatomic landmarks appears to be insufficient to generate reproducible tunnel positions. Radiographic landmarks may enable more reproducible identification of isometric femoral tunnel positions and reduce malpositioning.
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Lau BC, Rames J, Belay E, Riboh JC, Amendola A, Lassiter T. Anterolateral Complex Reconstruction Augmentation of Anterior Cruciate Ligament Reconstruction: Biomechanics, Indications, Techniques, and Clinical Outcomes. JBJS Rev 2019; 7:e5. [PMID: 31764195 DOI: 10.2106/jbjs.rvw.19.00011] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Affiliation(s)
- Brian C Lau
- Duke Sport Science Institute, Department of Orthopaedic Surgery, Duke University Medical Center, Durham, North Carolina
| | - Jess Rames
- Duke University Medical School, Durham, North Carolina
| | - Elshaday Belay
- Duke Sport Science Institute, Department of Orthopaedic Surgery, Duke University Medical Center, Durham, North Carolina
| | - Jonathan C Riboh
- Duke Sport Science Institute, Department of Orthopaedic Surgery, Duke University Medical Center, Durham, North Carolina
| | - Annunziato Amendola
- Duke Sport Science Institute, Department of Orthopaedic Surgery, Duke University Medical Center, Durham, North Carolina
| | - Tally Lassiter
- Duke Sport Science Institute, Department of Orthopaedic Surgery, Duke University Medical Center, Durham, North Carolina
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Lateral extra-articular tenodesis with ACL reconstruction demonstrates better patient-reported outcomes compared to ACL reconstruction alone at 2 years minimum follow-up. Arch Orthop Trauma Surg 2019; 139:1425-1433. [PMID: 31297583 DOI: 10.1007/s00402-019-03218-3] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/10/2018] [Indexed: 02/09/2023]
Abstract
PURPOSE The role for extra-articular procedures in addition to ACL reconstruction to restore rotational stability is debated. We use lateral extra-articular tenodesis (LEAT) for patients that meet criteria. Our null hypothesis was that there would be no difference between two groups of patients that were treated with ACL reconstruction alone or ACL reconstruction with LEAT according to criteria. METHODS A prospectively collected database of patients that were treated primarily according to the presence of a high-grade pivot shift with LEAT at the time of ACL reconstruction was propensity-matched with a group of patients that underwent ACL reconstruction alone. Minimum follow-up was 2 years. Stratified variable analysis of the groups was also performed. RESULTS There were 218 and 55 patients in the ACL reconstruction group and ACL reconstruction with LEAT group, respectively. There were 125 patients and 46 patients after propensity matching with a median follow-up of 52 months and 27 months, respectively. Post-operative Lysholm score (P = 0.005), Tegner activity index (P = 0.003) and time to return to sport (P < 0.001) favoured ACL reconstruction with LEAT compared to ACL reconstruction alone. Sports with frequent change of direction maneuvers and higher rates of ACL injury (rugby, soccer, skiing) favoured ACL reconstruction with LEAT versus ACL reconstruction alone (P = 0.001). No significant difference in re-operation rate or type of surgery was found between the two surgical groups after propensity matching but 13 patients in the ACL reconstruction-only group re-injured their ACL, 8 of whom required supplementary LEAT at the time of revision surgery. CONCLUSION Patient-reported outcomes and return to multi-directional sports after ACL reconstruction favour LEAT at the time of ACL reconstruction when narrow inclusion criteria are applied.
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Shafizadeh S, Jaecker V. High Risk of Tunnel Convergence in Combined Anterior Cruciate Ligament Reconstruction and Lateral Extra-articular Tenodesis: Response. Am J Sports Med 2019; 47:NP68-NP70. [PMID: 31567030 DOI: 10.1177/0363546519869240] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
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Influence of relative injury risk profiles on anterior cruciate ligament and medial collateral ligament strain during simulated landing leading to a noncontact injury event. Clin Biomech (Bristol, Avon) 2019; 69:44-51. [PMID: 31295670 PMCID: PMC6823138 DOI: 10.1016/j.clinbiomech.2019.06.018] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/14/2018] [Revised: 04/15/2019] [Accepted: 06/27/2019] [Indexed: 02/07/2023]
Abstract
BACKGROUND Athletes have traditionally been subdivided into risk classifications for ACL injury relative to the biomechanical traits they display during landing. This investigation aimed to discern whether these separate risk classifications elicit strain differences on the ACL and MCL during landing. It was hypothesized that the higher risk simulation profiles would exhibit greater ACL strain and that the ACL would exhibit greater strain than the MCL under all conditions. METHOD The mechanical impact simulator was used to simulate landing on a cohort of 46 cadaveric specimens. The simulator applied external joint loads to the knee prior to impulse delivery. These loads were organized into a series of profiles derived from in vivo motion capture previously performed on a cohort of 44 athletes and represented various risk classifications. Strain gauges were implanted on the ACL and MCL and simulations performed until a structural failure was elicited. Differences were assessed with Kruskal-Wallis tests. FINDINGS The highest-risk profiles tended to exhibit greater peak ACL strain and change in ACL strain than the baseline- and moderate-risk profiles. Specimens that failed during lower-risk simulations expressed greater strain at these loads than specimens that completed higher-risk simulations. The ACL recorded greater strain than the MCL throughout all simulation profiles. INTERPRETATION This behavior justifies why neuromuscular interventions have greater impact on higher-risk athletes and supports the continued screening and targeted training of those athletes that express greater injury risk. The loading disparity between ACL and MCL justifies their limited concomitant injury rate.
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Khanna M, Gupte C, Dodds A, Williams A, Walker M. Magnetic resonance imaging appearances of the capsulo-osseous layer of the iliotibial band and femoral attachments of the iliotibial band in the normal and pivot-shift ACL injured knee. Skeletal Radiol 2019; 48:729-740. [PMID: 30593591 PMCID: PMC6456473 DOI: 10.1007/s00256-018-3128-9] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/11/2018] [Revised: 11/28/2018] [Accepted: 12/03/2018] [Indexed: 02/02/2023]
Abstract
BACKGROUND Biomechanical evidence suggests that the anterolateral structures of the knee may be important restraints against anterolateral rotatory instability (ALRI) in the setting of anterior cruciate ligament (ACL) injury. OBJECTIVE To describe the anatomy and presence of injury of the capsule-osseous layer of the iliotibial band (CITB), the iliotibial band, and its deep distal femoral attachments in patients with a 'normal' knee (no pivot-shift bone marrow edema (BME) pattern) and patients with a pivot-shift BME pattern indicative of a pivot-shift injury associated with ACL tears. METHODS Group 1: 20 consecutive patients with no MRI evidence of pivot-shift injury and group 2: 20 consecutive patients with a pivot-shift BME pattern on MRI were identified. Retrospective consensus analysis of the anatomy and appearances of the CITB and the 'proximal' and 'epicondylar' distal femoral attachments of the ITB was performed for each MRI by two experienced musculoskeletal radiologists. RESULTS The positive predictive value (PPV) of CITB injury for pivot-shift ACL injury was 74%, negative predicted Value (NPV) was 80%. The PPV for injury of the 'proximal' ITB femoral attachment with pivot-shift ACL injury was 93%, NPV was 84%. The PPV for 'epicondylar' iliotibial femoral attachment injury was 62%, NPV was 45%. CONCLUSIONS Injury of the CITB and 'proximal' deep femoral attachments of the ITB are good markers for ACL injury even in the absence of a Segond fracture and should be evaluated on all MRIs as they may prove important in the further management of ALRI.
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Affiliation(s)
- Monica Khanna
- Department of Clinical Imaging, Imperial College Healthcare NHS Trust, Praed Street, London, W2 1NY UK
| | - Chimnay Gupte
- Department of Clinical Imaging, Imperial College Healthcare NHS Trust, Praed Street, London, W2 1NY UK
| | | | - Andy Williams
- Fortius Clinic, Fitzhardinghe Street, London, W1H 6EQ UK
| | - Miny Walker
- Department of Clinical Imaging, Imperial College Healthcare NHS Trust, Praed Street, London, W2 1NY UK
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