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Kolin DA, Jones RH, Heyworth BE, Jivanelli B, Fabricant PD. No difference in stability among various knee flexion angles during fixation of anterolateral ligament reconstruction or lateral extra-articular tenodesis: A systematic review and meta-analysis of biomechanical studies. J Exp Orthop 2024; 11:e12079. [PMID: 39015341 PMCID: PMC11250156 DOI: 10.1002/jeo2.12079] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/28/2024] [Revised: 06/18/2024] [Accepted: 06/21/2024] [Indexed: 07/18/2024] Open
Abstract
Purpose The purpose of this study was to investigate the effect of anterolateral ligament reconstruction (ALLR) or lateral extra-articular tenodesis (LET) fixation at low versus high flexion angles during anterior cruciate ligament reconstruction (ACLR) on rotation or translational knee stability. Methods The inclusion criteria for this study were (1) cadaveric study, (2) cadaveric specimens underwent ACLR, (3) cadaveric specimen underwent ALLR or LET and (4) specimen preparation technique described the knee flexion angle at the time of ALLR or LET tensioning and fixation. A priori, 'low flexion' was defined as 0-30° and 'high flexion' was defined as 60-90° at graft fixation. Main outcomes of interest included internal rotation and anterior translation. Results Data from 92 cadaveric knees (from 9 studies) were extracted and included in the meta-analysis. The mean pooled value for internal rotation was 10.1° (95% confidence interval [CI], 5.7-14.5°) for the low flexion group and 11.5° (95% CI, 7.4-15.7°) for the high flexion group (n.s.). The mean pooled value for anterior translation was 4.3 mm (95% CI, 0.5-8.1 mm) for the low flexion group and 3.0 mm (95% CI, 1.1-5.0 mm) for the high flexion group (n.s.). Conclusion This meta-analysis of existing biomechanical research found that the rotational and translational stability of the knee were not significantly different between scenarios in which ALLR or LET fixation was performed at low knee flexion angles (0-30°) versus high knee flexion angles (60-90°). Level of Evidence Level IV.
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Affiliation(s)
| | - Ruth H. Jones
- Pediatric Orthopedic Surgery ServiceNew YorkNew YorkUSA
| | - Benton E. Heyworth
- Orthopedics and Sports Medicine DepartmentBoston Children's HospitalBostonMassachusettsUSA
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Pettinari F, Carrozzo A, Saithna A, Ali AA, Alayane A, Barosso M, Vieira TD, Sonnery-Cottet B. Effect of Lateral Extra-Articular Procedures Combined With ACL Reconstruction on the Rate of Graft Rupture in Patients Aged Older Than 30 Years: A Matched-Pair Analysis of 1102 Patients From the SANTI Study Group. Am J Sports Med 2024; 52:1765-1772. [PMID: 38794893 DOI: 10.1177/03635465241247760] [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] [Indexed: 05/26/2024]
Abstract
BACKGROUND Clinical studies have demonstrated significant advantages of combined anterior cruciate ligament (ACL) reconstruction (ACLR) and lateral extra-articular procedures (LEAPs) over isolated ACLR in terms of reducing graft rupture and reoperation rates. However, most of the published studies have included young patients, and no studies have focused on patients aged >30 years. PURPOSE/HYPOTHESIS The purpose of this study was to compare the outcomes of isolated ACLR versus ACLR + LEAP at midterm follow-up in patients aged >30 years. The hypothesis was that patients who underwent combined procedures would experience significantly lower rates of graft rupture. STUDY DESIGN Cohort study; Level of evidence, 3. METHODS Patients >30 years of age who underwent primary ACLR + LEAP between January 2003 and December 2020 were propensity matched at a 1:1 ratio to patients who underwent isolated ACLR. A retrospective analysis of prospectively collected data was performed to determine graft rupture rates, knee stability, reoperation rates, and complications. Graft survivorship was assessed using the Kaplan-Meier method. Risk factors associated with the occurrence of graft failure were analyzed using a Cox proportional hazards model. RESULTS Two groups of 551 patients each were included in the study, and the mean follow-up was 97.19 ± 47.23 months. The overall mean age was 37.01 ± 6.24 years. The LEAP group consisted of 503 (91.3%) patients who had anterolateral ligament reconstruction and 48 (8.7%) patients who had a Lemaire procedure. Overall, 19 (1.7%) patients had graft failure: 15 (2.7%) in the no-LEAP group and 4 (0.7%) in the LEAP group (P = .0116). The risk of graft failure was significantly associated with the absence of LEAP (31 vs 12; hazard ratio, 3.309; 95% CI, 1.088-10.065; P = .0350) and age between 30 and 35 years (hazard ratio, 4.533; 95% CI, 1.484-13.841; P = .0080). A higher rate of reoperation for secondary meniscectomy was found in the no-LEAP group (5.6% vs 2.2%; P = .0031). CONCLUSION Patients aged >30 years who underwent combined ACLR and LEAP experienced a >3-fold lower risk of ACL graft failure compared with those who underwent isolated ACLR. Furthermore, the group without LEAP experienced a higher rate of secondary meniscectomy.
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Affiliation(s)
- Francesco Pettinari
- Centre Orthopedique Santy, FIFA Medical Center of Excellence, Hôpital Privé Jean Mermoz, Groupe GDS-Ramsay, Lyon, France
| | - Alessandro Carrozzo
- University of Rome La Sapienza, Orthopaedics and Traumatology Rome, Lazio, Italy
| | - Adnan Saithna
- AZBSC Orthopedics, Scottsdale, Arizona, USA
- Orthopaedics Department, Arizona State University, Tempe, Arizona, USA
| | - Ahmad Abed Ali
- Centre Orthopedique Santy, FIFA Medical Center of Excellence, Hôpital Privé Jean Mermoz, Groupe GDS-Ramsay, Lyon, France
| | - Ali Alayane
- Centre Orthopedique Santy, FIFA Medical Center of Excellence, Hôpital Privé Jean Mermoz, Groupe GDS-Ramsay, Lyon, France
| | - Marta Barosso
- Centre Orthopedique Santy, FIFA Medical Center of Excellence, Hôpital Privé Jean Mermoz, Groupe GDS-Ramsay, Lyon, France
| | - Thais Dutra Vieira
- Centre Orthopedique Santy, FIFA Medical Center of Excellence, Hôpital Privé Jean Mermoz, Groupe GDS-Ramsay, Lyon, France
| | - Bertrand Sonnery-Cottet
- Centre Orthopedique Santy, FIFA Medical Center of Excellence, Hôpital Privé Jean Mermoz, Groupe GDS-Ramsay, Lyon, France
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Saithna A, Helito CP, Bin Abd Razak HR, Cristiani R. Secondary restraints in ACL reconstruction: State-of-the-art. J ISAKOS 2024:S2059-7754(24)00088-9. [PMID: 38734309 DOI: 10.1016/j.jisako.2024.05.001] [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: 03/27/2023] [Revised: 03/07/2024] [Accepted: 05/04/2024] [Indexed: 05/13/2024]
Abstract
At-risk patients continue to experience a high likelihood of graft rupture after anterior cruciate ligament (ACL) reconstruction (ACLR). This narrative review seeks to provide the reader with an evidence-based synopsis of state-of-the-art concepts related to secondary restraint lesions, and how addressing them surgically might result in improved outcomes of ACLR.
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Affiliation(s)
- Adnan Saithna
- Department of Orthopedic Surgery, University of Arizona, Tucson, AZ, 85724, USA; AZBSC Orthopedics, 7649 E Pinnacle Peak Rd, Scottsdale, AZ, 85255, USA.
| | - Camilo Partezani Helito
- Grupo de Joelho, Instituto de Ortopedia e Traumatologia, Hospital das Clínicas HCFMUSP, Faculdade de Medicina, Universidade de São Paulo, Rua Dr. Ovídio Pires de Campos, 333 - Cerqueira Cesar, São Paulo, SP, CEP: 05403-010, Brazil; Hospital Sírio Libanês, Rua Dona Adma Jafet, 91 - Bela Vista, São Paulo, SP, CEP 01308-050, Brazil
| | - Hamid Rahmatullah Bin Abd Razak
- Total Orthopaedic Care & Surgery, Novena Medical Centre, 10 Sinaran Drive, 307506 Singapore; SingHealth Duke-NUS Musculoskeletal Sciences Academic Clinical Programme, 20 College Road, Academia Level 4, 169865, Singapore
| | - Riccardo Cristiani
- Department of Molecular Medicine and Surgery, Stockholm Sports Trauma Research Center, Karolinska Institutet, Stockholm, Sweden; Capio Artro Clinic, FIFA Medical Centre of Excellence, Sophiahemmet Hospital, Valhallavägen 91, 11486, Stockholm, Sweden
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Nyland J, Sirignano MN, Richards J, Krupp RJ. Regenerative Anterior Cruciate Ligament Healing in Youth and Adolescent Athletes: The Emerging Age of Recovery Science. J Funct Morphol Kinesiol 2024; 9:80. [PMID: 38804446 PMCID: PMC11130880 DOI: 10.3390/jfmk9020080] [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: 01/03/2024] [Revised: 04/15/2024] [Accepted: 04/19/2024] [Indexed: 05/29/2024] Open
Abstract
Anterior cruciate ligament (ACL) injuries mainly arise from non-contact mechanisms during sport performance, with most injuries occurring among youth or adolescent-age athletes, particularly females. The growing popularity of elite-level sport training has increased the total volume, intensity and frequency of exercise and competition loading to levels that may exceed natural healing capacity. Growing evidence suggests that the prevailing mechanism that leads to non-contact ACL injury from sudden mechanical fatigue failure may be accumulated microtrauma. Given the consequences of primary ACL injury on the future health and quality of life of youth and adolescent athletes, the objective of this review is to identify key "recovery science" factors that can help prevent these injuries. Recovery science is any aspect of sports training (type, volume, intensity, frequency), nutrition, and sleep/rest or other therapeutic modalities that may prevent the accumulated microtrauma that precedes non-contact ACL injury from sudden mechanical fatigue failure. This review discusses ACL injury epidemiology, current surgical efficacy, the native ACL vascular network, regional ACL histological complexities such as the entheses and crimp patterns, extracellular matrix remodeling, the concept of causal histogenesis, exercise dosage and ligament metabolism, central nervous system reorganization post-ACL rupture, homeostasis regulation, nutrition, sleep and the autonomic nervous system. Based on this information, now may be a good time to re-think primary ACL injury prevention strategies with greater use of modified sport training, improved active recovery that includes well-planned nutrition, and healthy sleep patterns. The scientific rationale behind the efficacy of regenerative orthobiologics and concomitant therapies for primary ACL injury prevention in youth and adolescent athletes are also discussed.
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Affiliation(s)
- John Nyland
- Norton Orthopedic Institute, 9880 Angie’s Way, Suite 250, Louisville, KY 40241, USA (J.R.); (R.J.K.)
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van der Wal WA, Meijer DT, Hoogeslag RAG, LaPrade RF. The Iliotibial Band is the Main Secondary Stabilizer for Anterolateral Rotatory Instability and both a Lemaire Tenodesis and Anterolateral Ligament Reconstruction Can Restore Native Knee Kinematics in the Anterior Cruciate Ligament Reconstructed Knee: A Systematic Review of Biomechanical Cadaveric Studies. Arthroscopy 2024; 40:632-647.e1. [PMID: 37207919 DOI: 10.1016/j.arthro.2023.05.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/31/2022] [Revised: 05/09/2023] [Accepted: 05/09/2023] [Indexed: 05/21/2023]
Abstract
PURPOSE To obtain a comprehensive overview of comparative biomechanical cadaveric studies investigating the effect of both the iliotibial band (ITB) and anterolateral ligament (ALL) on anterolateral rotatory instability (ALRI) in anterior cruciate ligament (ACL)-injured knees, and the effect of lateral extra-articular tenodesis (LET) versus ALL reconstruction (ALLR) in ACL-reconstructed knees. METHODS An electronic search was performed in the Embase and MEDLINE databases for the period between January 1, 2010, and October 1, 2022. All sectioning studies comparing the role of both the ITB and ALL on ALRI and all studies comparing the effect of both LET and ALLR were included. Articles were assessed for methodological quality according to the Quality Appraisal for Cadaveric Studies scale. RESULTS Data of 15 studies were included, representing the mean values of biomechanical data collected from 203 cadaveric specimens, with sample sizes ranging from 10 to 20 specimens. All 6 sectioning studies reported that the ITB acts as a secondary stabilizer to the ACL and helps resist internal knee rotation, whereas in only 2 of 6 sectioning studies the ALL contributed significantly to tibial internal rotation (IR). Most reconstruction studies reported that both a modified Lemaire tenodesis and an ALLR could significantly reduce the residual ALRI in isolated ACL-reconstructed knees and were able to restore IR stability/IR stability during the pivot shift. CONCLUSIONS The ITB acts as the main secondary stabilizer to the ACL in resisting IR/IR during pivot shift and an anterolateral corner (ALC) reconstruction with either a modified Lemaire tenodesis and ALLR can improve residual knee rotatory laxity in ACL reconstructed knees. CLINICAL RELEVANCE This systematic review provides insight in the biomechanical function of the ITB and ALL and emphasizes the importance of adding an ALC reconstruction to ACL reconstruction.
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Andriollo L, Picchi A, Sangaletti R, Perticarini L, Rossi SMP, Logroscino G, Benazzo F. The Role of Artificial Intelligence in Anterior Cruciate Ligament Injuries: Current Concepts and Future Perspectives. Healthcare (Basel) 2024; 12:300. [PMID: 38338185 PMCID: PMC10855330 DOI: 10.3390/healthcare12030300] [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: 12/31/2023] [Revised: 01/19/2024] [Accepted: 01/22/2024] [Indexed: 02/12/2024] Open
Abstract
The remarkable progress in data aggregation and deep learning algorithms has positioned artificial intelligence (AI) and machine learning (ML) to revolutionize the field of medicine. AI is becoming more and more prevalent in the healthcare sector, and its impact on orthopedic surgery is already evident in several fields. This review aims to examine the literature that explores the comprehensive clinical relevance of AI-based tools utilized before, during, and after anterior cruciate ligament (ACL) reconstruction. The review focuses on current clinical applications and future prospects in preoperative management, encompassing risk prediction and diagnostics; intraoperative tools, specifically navigation, identifying complex anatomic landmarks during surgery; and postoperative applications in terms of postoperative care and rehabilitation. Additionally, AI tools in educational and training settings are presented. Orthopedic surgeons are showing a growing interest in AI, as evidenced by the applications discussed in this review, particularly those related to ACL injury. The exponential increase in studies on AI tools applicable to the management of ACL tears promises a significant future impact in its clinical application, with growing attention from orthopedic surgeons.
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Affiliation(s)
- Luca Andriollo
- Robotic Prosthetic Surgery Unit—Sports Traumatology Unit, Fondazione Poliambulanza Istituto Ospedaliero, 25124 Brescia, Italy; (R.S.); (L.P.); (S.M.P.R.); (F.B.)
- Department of Orthopedics, Catholic University of the Sacred Heart, 00168 Rome, Italy
| | - Aurelio Picchi
- Unit of Orthopedics, Department of Life, Health and Environmental Sciences, University of L’Aquila, 67100 L’Aquila, Italy; (A.P.); (G.L.)
| | - Rudy Sangaletti
- Robotic Prosthetic Surgery Unit—Sports Traumatology Unit, Fondazione Poliambulanza Istituto Ospedaliero, 25124 Brescia, Italy; (R.S.); (L.P.); (S.M.P.R.); (F.B.)
| | - Loris Perticarini
- Robotic Prosthetic Surgery Unit—Sports Traumatology Unit, Fondazione Poliambulanza Istituto Ospedaliero, 25124 Brescia, Italy; (R.S.); (L.P.); (S.M.P.R.); (F.B.)
| | - Stefano Marco Paolo Rossi
- Robotic Prosthetic Surgery Unit—Sports Traumatology Unit, Fondazione Poliambulanza Istituto Ospedaliero, 25124 Brescia, Italy; (R.S.); (L.P.); (S.M.P.R.); (F.B.)
| | - Giandomenico Logroscino
- Unit of Orthopedics, Department of Life, Health and Environmental Sciences, University of L’Aquila, 67100 L’Aquila, Italy; (A.P.); (G.L.)
| | - Francesco Benazzo
- Robotic Prosthetic Surgery Unit—Sports Traumatology Unit, Fondazione Poliambulanza Istituto Ospedaliero, 25124 Brescia, Italy; (R.S.); (L.P.); (S.M.P.R.); (F.B.)
- Biomedical Sciences Area, IUSS University School for Advanced Studies, 27100 Pavia, Italy
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Ahsan ZS, Berube EE, Frondorf BJ, Bin Kim H, Marom N, Zayyad ZA, Fraychineaud TJ, Patel RM, Wickiewicz TL, Imhauser CW, Pearle AD, Nawabi DH. Role of Lateral Extra-articular Tenodesis in Restraining Internal Tibial Rotation: In Vitro Biomechanical Assessment of Lateral Tissue Engagement. Am J Sports Med 2024; 52:87-95. [PMID: 38164684 DOI: 10.1177/03635465231211534] [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] [Indexed: 01/03/2024]
Abstract
BACKGROUND The way in which force increases in the anterolateral tissues and the lateral extra-articular tenodesis (LET) tissue to resist internal rotation (IR) of the tibia after anterior cruciate ligament (ACL) reconstruction in isolation and after LET augmentation, respectively, is not well understood. PURPOSE (1) To compare in a cadaveric model how force increases (ie, engages) in the anterolateral tissues with IR of the tibia after isolated ACL reconstruction and in the LET tissue after augmentation of the ACL reconstruction with LET and (2) to determine whether IR of the tibia is related to engagement of the LET tissue. STUDY DESIGN Controlled laboratory study. METHODS IR moments were applied to 9 human cadaveric knees at 0°, 30°, 60°, and 90° of flexion using a robotic manipulator. Each knee was tested in 2 states: (1) after isolated ACL reconstruction with intact anterolateral tissues and (2) after LET was performed using a modified Lemaire technique with the LET tissue fixed at 60° of flexion under 44 N of tension. Resultant forces carried by the anterolateral tissues and the LET tissue were determined via superposition. The way force increased in these tissues was characterized via parameters of tissue engagement, namely in situ slack, in situ stiffness, and tissue force at peak applied IR moment, and then compared (α < .05). IR was related to parameters of engagement of the LET tissue via simple linear regression (α < .05). RESULTS The LET tissue exhibited less in situ slack than the anterolateral tissues at 30°, 60°, and 90° of flexion (P≤ .04) and greater in situ stiffness at 30° and 90° of flexion (P≤ .043). The LET tissue carried greater force at the peak applied IR moment at 0° and 30° of flexion (P≤ .01). IR was related to the in situ slack of the LET tissue (R2≥ 0.88; P≤ .0003). CONCLUSION LET increased restraint to IR of the tibia compared with the anterolateral tissue, particularly at 30°, 60°, and 90° of flexion. IR of the tibia was positively associated with in situ slack of the LET tissue. CLINICAL RELEVANCE Fixing the LET at 60° of flexion still provided IR restraint in the more functionally relevant flexion angle of 30°. Surgeons should pay close attention to the angle of internal and/or external tibial rotation when fixing the LET tissue intraoperatively because this surgical parameter is related to in situ slack of the LET tissue and, therefore, the amount of IR of the tibia.
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Affiliation(s)
- Zahab S Ahsan
- Sports Medicine Institute, Hospital for Special Surgery, New York, New York, USA
| | - Erin E Berube
- Department of Biomechanics, Hospital for Special Surgery, New York, New York, USA
| | - Brian J Frondorf
- Department of Biomechanics, Hospital for Special Surgery, New York, New York, USA
| | - Ho Bin Kim
- Department of Biomechanics, Hospital for Special Surgery, New York, New York, USA
| | - Niv Marom
- Sports Medicine Institute, Hospital for Special Surgery, New York, New York, USA
| | - Zaid A Zayyad
- Department of Biomechanics, Hospital for Special Surgery, New York, New York, USA
| | | | - Ronak M Patel
- Sports Medicine Institute, Hospital for Special Surgery, New York, New York, USA
| | - Thomas L Wickiewicz
- Sports Medicine Institute, Hospital for Special Surgery, New York, New York, USA
| | - Carl W Imhauser
- Department of Biomechanics, Hospital for Special Surgery, New York, New York, USA
| | - Andrew D Pearle
- Sports Medicine Institute, Hospital for Special Surgery, New York, New York, USA
| | - Danyal H Nawabi
- Sports Medicine Institute, Hospital for Special Surgery, New York, New York, USA
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Ng MK, Vasireddi N, Emara AK, Lam A, Voyvodic L, Rodriguez AN, Pan X, Razi AE, Erez O. Anterolateral knee complex considerations in contemporary anterior cruciate ligament reconstruction and total knee arthroplasty: a systematic review. EUROPEAN JOURNAL OF ORTHOPAEDIC SURGERY & TRAUMATOLOGY : ORTHOPEDIE TRAUMATOLOGIE 2024; 34:319-330. [PMID: 37490068 DOI: 10.1007/s00590-023-03647-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/30/2023] [Accepted: 07/11/2023] [Indexed: 07/26/2023]
Abstract
The anterolateral ligament (ALL) was first described in 1879 in the context of Segond fractures, which correlate with a 75-100% chance of an anterior cruciate ligament (ACL) tear or a 66-75% chance of a meniscal tear. The purpose of this paper is to provide an updated comprehensive review on the anterolateral ligament complex of the knee focusing on the: (1) anatomy of the ALL/ALC; (2) associated biomechanics/function; and (3) important surgical considerations in contemporary anterior cruciate ligament (ACL) reconstruction and total knee arthroplasty (TKA). A systematic review of studies on ALL was conducted on Pubmed/MEDLINE and Cochrane databases (May 7th, 2020 to February 1st, 2022), with 20 studies meeting inclusion/exclusion criteria. Studies meeting inclusion criteria were anatomical/biomechanical studies assessing ALL function, cadaveric and computer simulations, and comparative studies on surgical outcomes of ALLR (concomitant with ACL reconstruction). Eight studies were included and graded by MINOR and Newcastle-Ottawa scale to identify potential biases. The anatomy of the ALL is part of the anterolateral ligament complex (ALC), which includes the superficial/deep iliotibial band (including the Kaplan fiber system), iliopatellar band, ALL, and anterolateral capsule. Multiple biomechanical studies have characterized the ALC as a secondary passive stabilizer in resisting tibial internal rotation. Given the role of the ALC in resisting internal tibial rotation, lateral extra-articular procedures including ALL augmentation may be considered for chronic ACL tears, ACL revisions, and a high-grade pivot shift test. In the context of TKA, in the event of injury to the ALC, a more constrained implant or soft-tissue reconstruction may be necessary to restore appropriate knee stability.
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Affiliation(s)
- Mitchell K Ng
- Department of Orthopaedic Surgery, Maimonides Medical Center, 927 49th St., Brooklyn, NY, 11219, USA
| | - Nikhil Vasireddi
- Department of Orthopaedic Surgery, Cleveland Clinic, Cleveland, OH, 44195, USA
| | - Ahmed K Emara
- Department of Orthopaedic Surgery, Cleveland Clinic, Cleveland, OH, 44195, USA
| | - Aaron Lam
- Department of Orthopaedic Surgery, Maimonides Medical Center, 927 49th St., Brooklyn, NY, 11219, USA
| | - Lucas Voyvodic
- Department of Orthopaedic Surgery, Maimonides Medical Center, 927 49th St., Brooklyn, NY, 11219, USA
| | - Ariel N Rodriguez
- Department of Orthopaedic Surgery, Maimonides Medical Center, 927 49th St., Brooklyn, NY, 11219, USA.
| | - Xuankang Pan
- Department of Orthopaedic Surgery, Cleveland Clinic, Cleveland, OH, 44195, USA
| | - Afshin E Razi
- Department of Orthopaedic Surgery, Maimonides Medical Center, 927 49th St., Brooklyn, NY, 11219, USA
| | - Orry Erez
- Department of Orthopaedic Surgery, Maimonides Medical Center, 927 49th St., Brooklyn, NY, 11219, USA
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Yang HY, Cheon JH, Choi JH, Song EK, Seon JK. Combined Anterior Cruciate Ligament and Anterolateral Ligament Reconstruction Decreases Passive Anterior Tibial Subluxation Compared With Isolated Anterior Cruciate Ligament Reconstruction Despite Similar Rotational Stability and Clinical Outcomes. Arthroscopy 2023; 39:2513-2524.e2. [PMID: 37142134 DOI: 10.1016/j.arthro.2023.04.010] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/26/2022] [Revised: 04/15/2023] [Accepted: 04/18/2023] [Indexed: 05/06/2023]
Abstract
PURPOSE To analyze the effect of augmenting a hamstring autograft anterior cruciate ligament reconstruction (ACLR) with an anterolateral ligament reconstruction (ALLR) on a primary outcome of passive anterior tibial subluxation (PATS) and a secondary outcome of the clinical outcomes. METHODS ACL-injured patients who underwent primary ACLR between March 2014 and February 2020 at our center were enrolled. Patients who underwent combined procedures (ACLR + ALLR) were matched in a 1:1 propensity ratio to patients who underwent ACLR only. We evaluated PATS, knee stability (side-to-side laxity difference, pivot-shift test), and patient-reported outcome measures (PROMs) after the procedure and documented complications. RESULTS From an initial cohort of 252 patients with a minimum follow-up period of 2 years (48.4 ± 16.6 months), 35 matched pairs were included, and 17 patients (48.6%) in each group underwent second-look arthroscopy. The combined ACLR + ALLR group showed significantly better improvement of PATS in the lateral compartments than the isolated ACLR group (P = .034). There were no significant differences between the groups regarding knee stability (side-to-side laxity difference, pivot-shift test), PROMs, complications, and second-look arthroscopic findings (all P > .05). Moreover, the proportions of patients who achieved the minimal clinically important difference in PROMs were not different between groups. CONCLUSIONS The combined ACLR + ALLR procedure was associated with a mean improvement in anterior tibial subluxation for the lateral compartment that was 1.2 mm better than an isolated ACLR procedure, despite its lack of clinical significance. LEVEL OF EVIDENCE Level III, cohort study.
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Affiliation(s)
- Hong Yeol Yang
- Department of Orthopaedic Surgery, Chonnam National University Medical School and Hospital, Chonnam, Republic of Korea
| | - Jae Hyeok Cheon
- Department of Orthopaedic Surgery, Chonnam National University Medical School and Hospital, Chonnam, Republic of Korea
| | - Ji Hoon Choi
- Department of Orthopaedic Surgery, Chonnam National University Medical School and Hospital, Chonnam, Republic of Korea
| | - Eun Kyoo Song
- Department of Orthopaedic Surgery, Chonnam National University Medical School and Hospital, Chonnam, Republic of Korea
| | - Jong Keun Seon
- Department of Orthopaedic Surgery, Chonnam National University Medical School and Hospital, Chonnam, Republic of Korea.
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Ripoll T, Moreira da Silva AG, Saoudi S, Noguero A, Nicolle R, Maris V, Helito C, Cavaignac E. Comparison Between Continuous and Separate Grafts for ALL Reconstruction When Combined With ACL Reconstruction: A Retrospective Cohort Study From the SANTI Study Group. Am J Sports Med 2023; 51:3163-3170. [PMID: 37700466 DOI: 10.1177/03635465231197353] [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] [Indexed: 09/14/2023]
Abstract
BACKGROUND While various techniques have been described to augment the anterolateral side of the knee, such as lateral extra-articular tenodesis and anterolateral ligament (ALL) reconstruction (ALLR), it is unclear how they affect clinical outcomes. The aim of this study was to compare the results of 2 ALLR techniques for combined anterior cruciate ligament (ACL)/ALL reconstruction. HYPOTHESIS The graft rupture rate, complications, and patient-reported outcomes are similar between a reconstruction technique using a continuous gracilis graft (CG) and single femoral tunnel for ACL/ALL reconstruction, and one using a separate gracilis graft (SG) and independent femoral tunnels. STUDY DESIGN Cohort study; Level of evidence, 3. METHODS A retrospective analysis of data collected prospectively at 2 hospitals was conducted: one in which a CG is preferred when performing combined ACL/ALL reconstruction and the other in which an SG is preferred. The medical records at these 2 hospitals were searched to identify ACL-deficient patients who had undergone ACL/ALL reconstruction between 2015 and 2020. Eligible patients were between 18 and 60 years of age, had the reconstruction surgery done within 24 months of the injury, and had ≥2 years of follow-up. The eligible patients were contacted to gather outcomes, or their outcomes were collected in person during their last follow-up visit. Outcomes evaluated included graft rupture rate, complication rate, and Lysholm and International Knee Documentation Committee Subjective Knee Form (IKDC-SKF) scores. Preoperative and intraoperative data were also evaluated. RESULTS A total of 237 patients were available for analysis in the GC group and 178 in the SG group with a mean follow-up of 3 years (CG: SD, 9.6 months; SG: SD, 8.1 months). The authors found a low rate of graft rupture (CG: 3.4%; SG: 2.8%; P = .785) and no difference between techniques. The complication rate was 6% in the CG group, while it was 10% in the SG group (P = .112). The mean value of the IKDC-SKF was similar between techniques (CG: 88.1; SG: 87.9; P = .267), and the mean Lysholm score was excellent in both sets of patients (CG: 90.0; SG: 92.4; P < .001). CONCLUSION This study found little to no difference in the graft rupture rate, complication rate, and functional knee scores when using a CG or SG for ALLR during combined ACL/ALL reconstruction. Both techniques are equivalent and can be used for an anterolateral augmentation procedure in combination with ACL reconstruction.
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Affiliation(s)
- Thomas Ripoll
- Department of Orthopedic Surgery and Trauma, Pierre-Paul Riquet Hospital, Toulouse, France
| | - Andre Giardino Moreira da Silva
- Grupo de Joelho, Instituto de Ortopedia e Traumatologia, Hospital das Clínicas HCFMUSP, Faculdade de Medicina, Universidade de São Paulo, São Paulo, Brazil; Hospital Sírio Libanês, São Paulo, Brazil
| | - Samy Saoudi
- Department of Orthopedic Surgery and Trauma, Pierre-Paul Riquet Hospital, Toulouse, France
| | - Antoine Noguero
- Department of Orthopedic Surgery and Trauma, Pierre-Paul Riquet Hospital, Toulouse, France
| | - Romain Nicolle
- Department of Orthopedic Surgery and Trauma, Pierre-Paul Riquet Hospital, Toulouse, France
| | - Victor Maris
- Department of Orthopedic Surgery and Trauma, Pierre-Paul Riquet Hospital, Toulouse, France
| | - Camillo Helito
- Grupo de Joelho, Instituto de Ortopedia e Traumatologia, Hospital das Clínicas HCFMUSP, Faculdade de Medicina, Universidade de São Paulo, São Paulo, Brazil; Hospital Sírio Libanês, São Paulo, Brazil
| | - Etienne Cavaignac
- Department of Orthopedic Surgery and Trauma, Pierre-Paul Riquet Hospital, Toulouse, France
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Pearce SL, Bryniarski AR, Brown JR, Brady AW, Gruskay JA, Dornan GJ, Vidal AF, Godin JA. Biomechanical Analysis of Tibial Motion and ACL Graft Forces After ACLR With and Without LET at Varying Tibial Slopes. Am J Sports Med 2023; 51:2583-2588. [PMID: 37462690 DOI: 10.1177/03635465231184389] [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] [Indexed: 08/02/2023]
Abstract
BACKGROUND Lateral extra-articular tenodesis (LET) is being performed more frequently with anterior cruciate ligament (ACL) reconstruction (ACLR) to decrease graft failure rates. The posterior tibial slope (PTS) affects ACL graft failure rates. The effect of ACLR + LET on tibial motion and graft forces with increasing PTS has not been elucidated. HYPOTHESIS LET would decrease anterior tibial translation (ATT), tibial rotation, and ACL graft force versus ACLR alone with increasing tibial slope throughout knee range of motion. STUDY DESIGN Controlled laboratory study. METHODS Twelve fresh-frozen cadaveric knees (mean donor age, 40.5 years; all female) were tested in 4 conditions (intact, ACL cut, ACLR, and ACLR + LET) with varying PTSs (5°, 10°, 15°, and 20°) at 3 flexion angles (0°, 30°, and 60°). Specimens were mounted to a load frame that applied a 500-N axial load with 1 N·m of internal rotation (IR) torque. The amount of tibial translation, IR, and graft force was measured. RESULTS Increasing PTS revealed a linear and significant increase in graft force at all flexion angles. LET reduced graft force by 8.3% (-5.8 N) compared with ACLR alone at 30° of flexion. At the same position, slope reduction resulted in reduced graft force by 17% to 22% (-12.3 to -15.2 N) per 5° of slope correction, with a 46% (-40.7 N) reduction seen from 20° to 5° of slope correction. For ATT, ACLR returned tibial translation to preinjury levels, as did ACLR + LET at all flexion angles, except full extension, where ACLR + LET reduced ATT by 2.5 mm compared with the intact state (P = .019). CONCLUSION Increased PTS was confirmed to increase graft forces linearly. Although ACLR + LET reduced graft force compared with ACLR alone, slope reduction had a larger effect across all testing conditions. No other clinically significant differences were noted between ACLR with versus without LET in regard to graft force, ATT, or IR. CLINICAL RELEVANCE Many authors have proposed LET in the setting of ACLR, revision surgery, hyperlaxity, high-grade pivot shift, and elevated PTS, but the indications remain unclear. The biomechanical performance of ACLR + LET at varying PTSs may affect daily practice and provide clarity on these indications.
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Affiliation(s)
| | | | - Justin R Brown
- Steadman Philippon Research Institute, Vail, Colorado, USA
| | - Alex W Brady
- Steadman Philippon Research Institute, Vail, Colorado, USA
| | | | - Grant J Dornan
- Steadman Philippon Research Institute, Vail, Colorado, USA
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12
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Hoveidaei AH, Sattarpour R, Dadgostar H, Razi S, Razi M. Unhappy triad of the knee: What are the current concepts and opinions? World J Orthop 2023; 14:268-274. [PMID: 37304199 PMCID: PMC10251265 DOI: 10.5312/wjo.v14.i5.268] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/26/2022] [Revised: 01/24/2023] [Accepted: 04/06/2023] [Indexed: 05/18/2023] Open
Abstract
The association between injuries to the anterior cruciate ligament, medial collateral ligament, and medial meniscus (MM) has been known to orthopedic surgeons since 1936; O'Donoghue first used the term "unhappy triad" of the knee to describe this condition in 1950. Later studies revealed that involvement of the lateral meniscus is more common than MM in these cases, leading to a change in the definition. Recent studies have revealed that this triad may be primarily linked to knee anterolateral complex injuries. Although there is not a definite management protocol for this triad, we try to mention the most recent concepts about it in addition to expert opinions.
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Affiliation(s)
- Amir Human Hoveidaei
- Sports Medicine Research Center, Tehran University of Medical Sciences, Tehran 14395-578, Iran
| | - Reza Sattarpour
- School of Medicine, Tehran University of Medical Sciences, Tehran 1416634793, Iran
| | - Haleh Dadgostar
- Department of Sports and Exercise Medicine, School of Medicine, Rasool Akram Medical Complex, Iran University of Medical Sciences, Tehran 1445613131, Iran
| | - Saeed Razi
- Bone and Joint Reconstruction Research Center, Department of Orthopedics, School of Medicine, Iran University of Medical Sciences, Tehran 1545913487, Iran
| | - Mohammad Razi
- Department of Orthopedic Surgery, Rasoul Akram Hospital, Iran University of Medical Sciences, Tehran 1445613131, Iran
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13
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Shatrov J, Freychet B, Hopper GP, Coulin B, El Helou A, An JS, Vieira TD, Sonnery-Cottet B. Radiographic Incidence of Knee Osteoarthritis After Isolated ACL Reconstruction Versus Combined ACL and ALL Reconstruction: A Prospective Matched Study From the SANTI Study Group. Am J Sports Med 2023:3635465231168899. [PMID: 37154412 DOI: 10.1177/03635465231168899] [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] [Indexed: 05/10/2023]
Abstract
BACKGROUND Combined anterior cruciate ligament (ACL) reconstruction (ACLR) and anterolateral ligament reconstruction (ALLR) have demonstrated reduced risk of graft rerupture as compared with isolated ACLR. However, concerns remain that the risk of osteoarthritis (OA) may be increased by the addition of ALLR. PURPOSE/HYPOTHESIS The aim of this study was to evaluate the incidence of OA with isolated ACLR in comparison with ACLR + ALLR at medium-term follow-up. We hypothesized that there would be no differences between the groups. STUDY DESIGN Cohort study; Level of evidence, 3. METHODS Patients who underwent ACLR + ALLR with hamstring tendon autograft between January 2011 and March 2012 were propensity matched to patients who underwent isolated ACLR with bone-patellar tendon-bone (BPTB) or hamstring tendon autograft in the same period. Medium-term radiographic evaluation was performed using the International Knee Documentation Committee (IKDC) radiographic OA grading scale, modified Kellgren-Lawrence grade, and the surface fit method to assess percentage of joint space narrowing. Clinical outcomes were assessed with the following measures: IKDC, Knee injury and Osteoarthritis Outcome Score (KOOS), Lysholm, Tegner, and ACL Return to Sport after Injury. RESULTS A total of 80 patients (42 ACLR + ALLR and 38 isolated ACLR) were analyzed with a mean follow-up of 104 months. There was no significant difference between groups for joint space narrowing in the medial or lateral tibiofemoral or lateral patellofemoral (PF) compartment. However, 36.8% in the isolated ACLR group versus 11.9% in the ACLR + ALLR group had narrowing of the medial PF compartment (P = .0118). A lateral meniscal tear increased the risk of lateral tibiofemoral narrowing by nearly 5 times (odds ratio, 4.9; 95% CI, 1.547-19.367; P = .0123). The risk of medial PF narrowing was >4-fold with an isolated ACLR (odds ratio, 4.8; 95% CI, 1.44-19.05; P = .0179). Between the isolated ACLR group and the ACLR + ALLR group, the secondary meniscectomy rate was 13.2% versus 11.9% (not significantly different). There was no difference between groups in KOOS, Tegner, or IKDC scores. There was also no difference between groups for grades of osteoarthritic change for any classification system. Patients who received a BPTB graft had medial PF joint narrowing in 66.7% of cases as compared with 11.9% in those who received ACLR + ALLR (P = 0.118). CONCLUSION ACLR + ALLR did not increase the risk of OA in the lateral tibiofemoral compartment when compared with an isolated ACLR at medium-term follow-up. Isolated ACLR using BPTB was associated with a significantly increased risk of medial PF joint space narrowing. REGISTRATION NCT05123456 (ClinicalTrials.gov identifier).
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Affiliation(s)
- Jobe Shatrov
- Centre Orthopedique Santy, FIFA Medical Center of Excellence, Hôpital Privé Jean Mermoz, Groupe GDS-Ramsay, Lyon, France
| | - Benjamin Freychet
- Centre Orthopedique Santy, FIFA Medical Center of Excellence, Hôpital Privé Jean Mermoz, Groupe GDS-Ramsay, Lyon, France
| | - Graeme P Hopper
- Centre Orthopedique Santy, FIFA Medical Center of Excellence, Hôpital Privé Jean Mermoz, Groupe GDS-Ramsay, Lyon, France
- NHS Lanarkshire University Hospitals, Glasgow, UK
| | - Benoit Coulin
- Centre Orthopedique Santy, FIFA Medical Center of Excellence, Hôpital Privé Jean Mermoz, Groupe GDS-Ramsay, Lyon, France
| | - Abdo El Helou
- Centre Orthopedique Santy, FIFA Medical Center of Excellence, Hôpital Privé Jean Mermoz, Groupe GDS-Ramsay, Lyon, France
| | - Jae-Sung An
- Centre Orthopedique Santy, FIFA Medical Center of Excellence, Hôpital Privé Jean Mermoz, Groupe GDS-Ramsay, Lyon, France
| | - Thais Dutra Vieira
- Centre Orthopedique Santy, FIFA Medical Center of Excellence, Hôpital Privé Jean Mermoz, Groupe GDS-Ramsay, Lyon, France
| | - Bertrand Sonnery-Cottet
- Centre Orthopedique Santy, FIFA Medical Center of Excellence, Hôpital Privé Jean Mermoz, Groupe GDS-Ramsay, Lyon, France
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14
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Behrendt P, Fahlbusch H, Akoto R, Thürig G, Frings J, Herbst E, Raschke MJ, Frosch KH, Kittl C, Krause M. Comparison of Onlay Anchor Fixation Versus Transosseous Fixation for Lateral Extra-articular Tenodesis During Revision ACL Reconstruction. Orthop J Sports Med 2023; 11:23259671231166380. [PMID: 37213658 PMCID: PMC10196542 DOI: 10.1177/23259671231166380] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/15/2023] [Accepted: 01/30/2023] [Indexed: 05/23/2023] Open
Abstract
Background There is evidence on the clinical effectiveness of the Lemaire technique for lateral extra-articular tenodesis (LET) in patients undergoing revision anterior cruciate ligament reconstruction (ACLR), but the best fixation technique is unknown. Purpose To compare the clinical outcomes of 2 fixation techniques after revision ACLR: (1) onlay anchor fixation, which would avoid tunnel conflict and physis injury, and (2) transosseous tightening and interference screw fixation. Pain at the area of LET fixation was also assessed. Study Design Cohort study; Level of evidence, 3. Methods This was a retrospective 2-center study of patients with first-time revision ACLR and either LET with anchor fixation (aLET) with a 2.4-mm suture anchor or LET with transosseous fixation (tLET). Outcomes at minimum 12-month follow-up were assessed with the International Knee Documentation Committee score, Knee injury and Osteoarthritis Outcome Score, visual analog scale for pain at the LET fixation area, Tegner score, and anterior tibial translation (ATT). A subgroup analysis within the aLET group investigated passing the graft over or under the lateral collateral ligament (LCL). Results In total, 52 patients were included (26 patients in each group); the mean ± SD follow-up was 13.7 ± 3.4 months. No statistically significant differences were detected between the groups with respect to patient-reported outcome scores, clinical examination, or instrumented testing (side-to-side difference in ATT at 30° of flexion; aLET, 1.5 ± 2.5 mm; tLET, 1.6 ± 1.7 mm). Clinical failure was detected in 1 patient with aLET and none with tLET. Subgroup analysis revealed a small, nonsignificant flexion deficit in knees in which the iliotibial band strand was passed under (n = 42) or over (n = 10) the LCL. No clinically relevant tenderness was detected at the area of LET fixation in any group (aLET, 0.6 ± 1.3; tLET, 0.9 ± 1.7; over the LCL, 0.2 ± 0.6; under the LCL, 0.9 ± 1.6). Conclusion Onlay anchor fixation and transosseous fixation of the LET were equivalent with respect to outcome scores and instrumented ATT testing. Clinically, there were minor differences in passage of the LET graft over or under the LCL.
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Affiliation(s)
- Peter Behrendt
- Department of Trauma Surgery,
Orthopedics and Sportsorthopedics, Asklepios St Georg, Hamburg, Germany
- Department of Trauma and Orthopaedic
Surgery, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
- Department of Anatomy,
Christian-Albrechts-University, Kiel, Germany
| | - Hendrik Fahlbusch
- Department of Trauma and Orthopaedic
Surgery, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Ralph Akoto
- Department of Trauma Surgery,
Orthopaedics and Sports Traumatology, BG Hospital Hamburg, Hamburg, Germany
| | - Grégoire Thürig
- Department of Orthopedics and
Traumatology, Cantonal Hospital Fribourg, Fribourg, Switzerland
| | - Jannik Frings
- Department of Trauma and Orthopaedic
Surgery, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Elmar Herbst
- Department of Trauma, Hand and
Reconstructive Surgery, University of Muenster, Muenster, Germany
| | - Michael J. Raschke
- Department of Trauma, Hand and
Reconstructive Surgery, University of Muenster, Muenster, Germany
| | - Karl-Heinz Frosch
- Department of Trauma and Orthopaedic
Surgery, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
- Department of Trauma Surgery,
Orthopaedics and Sports Traumatology, BG Hospital Hamburg, Hamburg, Germany
| | - Christoph Kittl
- Department of Trauma, Hand and
Reconstructive Surgery, University of Muenster, Muenster, Germany
| | - Matthias Krause
- Department of Trauma and Orthopaedic
Surgery, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
- Matthias Krause, Priv-Doz,
Dr med, Department of Trauma and Orthopaedic Surgery, University Medical Center
Hamburg-Eppendorf, Martinistraße 52, 20251 Hamburg, Germany (
)
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15
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Delaloye JR, Hartog C, Blatter S, Schläppi M, Müller D, Schwenke T, Murar J, Koch PP. Biomechanical Comparison of Anterior Cruciate Ligament Reconstruction Using a Single-Bundle Round or Ribbon-like Hamstring Tendon Graft. Am J Sports Med 2023; 51:1162-1170. [PMID: 36917792 DOI: 10.1177/03635465231159069] [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] [Indexed: 03/16/2023]
Abstract
BACKGROUND Persistent instability of the knee is reported in up to 30% of patients after anterior cruciate ligament (ACL) reconstruction. Based on anatomic findings showing that ACL is a flat ribbon-like structure that twists during knee flexion, a new surgical ACL reconstruction technique using a ribbon-like graft has been developed. However the effect of this surgical technique on knee kinematics has not yet been evaluated. PURPOSE To compare the anteroposterior and rotational stability of the knee after ACL reconstruction using single-bundle (SB) round and ribbon-like grafts in anterolateral-intact/deficient knees. STUDY DESIGN Controlled laboratory study. METHODS Twelve human fresh-frozen cadaveric knees were tested with a 6 degrees of freedom robotic system. Internal rotation and anterior translation of the knee were recorded from 0° to 90° of flexion. A full kinematic assessment was performed in each of the following conditions: (1) intact knee, (2) after sectioning of the ACL, (3) after ACL reconstruction using a SB hamstring tendon graft in a round configuration and a ribbon-like configuration, and (4) after sectioning of the anterolateral structures. One-way analysis of variance and post hoc Tukey tests were used for statistical analyses. RESULTS When compared with the intact knee, the ACL-deficient knee demonstrated a mean ± SD increase in anterior translation and internal rotation of 6.3 ± 2.5 mm (P < .01) and 5.8°± 2.3° (P < .01), respectively. After ACL reconstruction using a SB ribbon-like graft, the mean difference in anterior translation and internal rotation as compared with the intact knee was -0.1 ± 1.5 mm (P = .842) and 0.0°± 1.1° (P = .999). These differences from the intact knee were also not significant after ACL reconstruction using a round graft (-0.1 ± 1.3 mm, P = .999; -0.5°± 1.5°, P = .401). In the ACL-reconstructed knee using either a ribbon-like or round graft, sectioning of the anterolateral structures did not induce a significant increase of anterior translation and internal rotation of the knee. CONCLUSION ACL reconstruction using a SB ribbon-like or round graft restored the kinematics of the intact knee at time zero. Secondary sectioning of the anterolateral structures in the ACL-reconstructed knee using both types of graft did not significantly affect the anterior translation and internal rotation of the knee. CLINICAL RELEVANCE This is the first biomechanical study on the new ACL reconstruction technique using a ribbon-like graft.
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Affiliation(s)
- Jean-Romain Delaloye
- Clinic of Orthopaedics and Traumatology, Department of Surgery, Kantonsspital, Winterthur, Switzerland
| | - Christoph Hartog
- Clinic of Orthopaedics and Traumatology, Department of Surgery, Kantonsspital, Winterthur, Switzerland
| | - Samuel Blatter
- Clinic of Orthopaedics and Traumatology, Department of Surgery, Kantonsspital, Winterthur, Switzerland
| | - Michel Schläppi
- Clinic of Orthopaedics and Traumatology, Department of Surgery, Kantonsspital, Winterthur, Switzerland
| | | | | | - Jozef Murar
- Twin Cities Orthopedics, Edina, Minnesota, USA
| | - Peter P Koch
- Clinic of Orthopaedics and Traumatology, Department of Surgery, Kantonsspital, Winterthur, Switzerland
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16
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Figueroa F, Figueroa D, Guiloff R, Putnis S, Fritsch B, Itriago M. Navigation in anterior cruciate ligament reconstruction: State of the art. J ISAKOS 2023; 8:47-53. [PMID: 36179977 DOI: 10.1016/j.jisako.2022.09.001] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2022] [Revised: 08/15/2022] [Accepted: 09/17/2022] [Indexed: 11/16/2022]
Abstract
Computer navigation (CN) for anterior cruciate ligament (ACL) surgery has been used mainly for two purposes: to enhance the accuracy of tunnel position and to evaluate the kinematics of the ACL reconstruction (ACLR) and the stability achieved by different surgical techniques. Many studies have shown that navigation may improve the accuracy of anatomical tunnel orientation and position during ACL reconstructive surgery compared with normal arthroscopic tunnel placement, especially regarding the femoral side. At the same time, it has become the gold-standard method for intraoperative knee kinematic assessment, as it permits a quantitative multidirectional knee joint laxity evaluation. CN in ACL surgery has been associated with diverse problems. First, in most optic systems additional skin incisions and drill holes in the femoral bone are required for fixation of a reference frame to the femur. Second, additional radiation exposure and extra medical cost to the patient for preoperative planning are usually needed. Third, CN, due to additional steps, has more opportunities for error during preoperative planning, intraoperative registration, and operation. Fourth, soft tissues, including the skin and subcutaneous tissues, are usually not considered during the preoperative planning, which can be a problem for kinematic and stability assessment. Many studies have concluded that ACLR using a CN system is more expensive than conventional surgery, it adds extra time to the surgery and it is not mitigated by better clinical outcomes. This, combined with costs and invasiveness, has limited the use of CN to research-related cases. Future technology should prioritize less invasive intra-operative surgical navigation.
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Affiliation(s)
- Francisco Figueroa
- Clinica Alemana-Universidad del Desarrollo, Av Vitacura 5951, Vitacura, Santiago, 7650568, Chile; Hospital Sotero del Rio, Avenida Concha y Toro 3459, Puente Alto, Santiago, 8207257, Chile.
| | - David Figueroa
- Clinica Alemana-Universidad del Desarrollo, Av Vitacura 5951, Vitacura, Santiago, 7650568, Chile.
| | - Rodrigo Guiloff
- Clinica Alemana-Universidad del Desarrollo, Av Vitacura 5951, Vitacura, Santiago, 7650568, Chile; Hospital Sotero del Rio, Avenida Concha y Toro 3459, Puente Alto, Santiago, 8207257, Chile.
| | - Sven Putnis
- Southmead Hospital, Southmead Rd, Bristol, BS10 5NB, UK.
| | - Brett Fritsch
- Sydney Orthopaedic Research Institute, The Gallery, Level 1/445 Victoria Ave, Chatswood, NSW, 2067, Australia.
| | - Minerva Itriago
- Clinica Alemana-Universidad del Desarrollo, Av Vitacura 5951, Vitacura, Santiago, 7650568, Chile.
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17
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Devitt BM, Neri T, Fritsch BA. Combined anterolateral complex and anterior cruciate ligament injury: Anatomy, biomechanics, and management-State-of-the-art. J ISAKOS 2023; 8:37-46. [PMID: 36368633 DOI: 10.1016/j.jisako.2022.10.004] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2022] [Revised: 10/06/2022] [Accepted: 10/25/2022] [Indexed: 11/11/2022]
Abstract
Anterior cruciate ligament (ACL) rupture typically occurs because of sudden axial loading of the knee in conjunction with a coupled valgus and rotational moment about the tibia. However, the ACL is not the only structure damaged during this mechanism of injury, and studies have shown that the anterolateral complex (ALC) of the knee is also commonly involved. Biomechanical studies have established that the ALC plays an important role as a secondary stabiliser to control anterolateral rotatory laxity (ALRL). Indeed, it has been suggested that failure to address injury to the ALC at the time of ACL reconstruction (ACLR) may increase the risk of graft failure owing to persistent ALRL. The concept of combining a lateral extra-articular procedure to augment ACLR for the treatment of ACL injury emerged with a view to decrease the failure rate of either procedure in isolation. This state-of-the-art review discusses the history of the anatomy of the ALC, the biomechanics of a variety of lateral extra-articular augmentation procedures, and provides clinical guidelines for their use in primary ACLR.
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Affiliation(s)
- Brian M Devitt
- Dublin City University, School of Health and Human Performance & Sports Surgery Clinic, Dublin, D09 C523, Ireland.
| | - Thomas Neri
- Department of Orthopaedic Surgery, University Hospital of Saint-Etienne, University of Lyon - Jean Monnet, 42000, France
| | - Brett A Fritsch
- Sydney Orthopaedic Research Institute, Level 1, The Gallery, 445 Victoria Avenue, Chatswood, NSW 2067, Australia
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18
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Bouguennec N, Thaunat M, Barth J, Cavaignac E, Gunepin FX, Letartre R, Netten A, Pujol N, Rousseau T, Sbihi J, Mouton C, Sfa TFAS. Consensus statement on data to be entered in the ACL tear registry: SFA-DataLake. Orthop Traumatol Surg Res 2022; 108:103392. [PMID: 36064107 DOI: 10.1016/j.otsr.2022.103392] [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: 05/26/2022] [Revised: 07/11/2022] [Accepted: 07/15/2022] [Indexed: 02/03/2023]
Abstract
INTRODUCTION Anterior cruciate ligament (ACL) reconstruction is a frequent procedure, with room for improvement by rehabilitation measures and associated peripheral and meniscal surgeries that are currently under assessment, requiring follow-up. Outside France, there have been ACL registries for 20 years now. The French Arthroscopy Society (SFA) decided to set up an ACL tear registry within its SFA DataLake registry platform. MATERIAL AND METHOD This article presents the methodology underlying the ACL Tear Registry: i.e., identification, definition and coding of essential and relevant data. A test phase comprised an initial assessment to improve data quality and overall coherence, to optimize data-entry time for patients and practitioners, who are the guarantors of the registry's use and efficacy. RESULTS The SFA DataLake ACL Tear Registry was made available to SFA members in December 2021. It aims to enable a review of practices for surgeons, early detection of failure of procedures and implants, with rates of failure and abnormal complications, and identification of prognostic factors for outcome, especially regarding original items that do not figure in previous registries. CONCLUSION SFA DataLake strikes a balance between "indispensable" and "original" items. The choice of contents and data quality is founded on a robust methodology with overall coherence, enabling analysis of large cohorts and comparisons with the literature and other registries. However, it remains to assess rates of data entry and item relevance as the Registry progresses. LEVEL OF EVIDENCE IV.
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Affiliation(s)
| | - Mathieu Thaunat
- Ramsay santé, centre orthopédique Santy, hôpital privé Jean-Mermoz, 24, avenue Paul-Santy, 69008 Lyon, France
| | - Johannes Barth
- Clinique des Cèdres, 21, avenue Albert-Londres, 38130 Échirolles, France
| | - Etienne Cavaignac
- Clinique universitaire du sport, 1, place du Docteur Joseph-Baylac, 31300 Toulouse, France
| | - François-Xavier Gunepin
- Clinique mutualiste de la porte de l'Orient, 3 rue Robert-de-La-Croix, 56100 Lorient, France
| | - Romain Letartre
- Ramsay santé, hôpital privé la Louvière, 126, rue de la Louvière, 59800 Lille, France
| | | | - Nicolas Pujol
- Centre hospitalier de Versailles, 177, rue de Versailles, 78150 Le Chesnay, France
| | - Thomas Rousseau
- Clinique mutualiste catalane, 60, rue Louis-Mouillard, 66000 Perpignan, France
| | - Jaafar Sbihi
- Clinique Juge, 116, rue J.-Mermoz, 13008 Marseille, France
| | - Caroline Mouton
- Department of Orthopaedic Surgery, Luxembourg Institute of Research in Orthopaedics, Sports Medicine and Science, centre hospitalier Luxembourg, clinique d'Eich, Luxembourg, Luxembourg
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19
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El Khoury G, Hardy A, Saint-Etienne A, Saghbiny E, Meyer A, Grimaud O, Gerometta A, Lefevre N, Bohu Y. Return to Sport After Revision ACL Reconstruction: A Comparative Cohort Study of Outcomes After Single- Versus Multiple-Revision Surgeries. Orthop J Sports Med 2022; 10:23259671221133762. [PMID: 36479462 PMCID: PMC9720813 DOI: 10.1177/23259671221133762] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/10/2022] [Accepted: 07/27/2022] [Indexed: 07/24/2023] Open
Abstract
BACKGROUND The return-to-sport rate at 2 years after multiple-revision anterior cruciate ligament (ACL) reconstructions has not been evaluated. HYPOTHESIS It was hypothesized that patients who undergo multiple-revision ACL reconstructions would have a lower return-to-sport rate at 2 years after surgery than those who undergo a single-revision reconstruction. Furthermore, it was hypothesized that the multiple-revision group would have lower functional scores. STUDY DESIGN Cohort study; Level of evidence, 3. METHODS A single-center cohort study in patients who underwent revision ACL reconstruction was begun in 2012. This study included 2 groups: Patients who underwent a single revision, and those who underwent multiple revisions. The main evaluation criterion was the return to sport at the 2-year follow-up. The secondary criteria were the International Knee Documentation Committee (IKDC), Knee injury and Osteoarthritis Outcome Score (KOOS), Lysholm, and ACL-Return to Sport after Injury (ACL-RSI) functional knee scores at the 1- and 2-year follow-ups. RESULTS A total of 322 patients (single-revision group: n = 302; multiple-revision group: n = 20) were included. A significant difference in the percentage of patients who stopped all sports activity was found between the 2 groups at 2 years (single-revision group: 19.4%; multiple-revision group: 50%). The return-to-sport rate at the same or lower level of performance was higher in the single-revision group as well (17% vs 14.3% for return at the same level; 45.6% vs 14.3% for return at a lower level; P = .03). At the 2-year follow-up, the functional scores of the single-revision group were significantly higher those than in the multiple-revision group: IKDC (77.7 ± 13.82 vs 64.79 ± 15.22; P < .001), KOOS (72.66 ± 17.63 vs 52.5 ± 15.64; P < .001), Lysholm (84.05 ± 11.88 vs 72.5 ± 13.49; P < .001), and ACL-RSI (52.34 ± 21.83 vs 46.43 ± 14.8; P = .0036). CONCLUSION Only a small percentage of patients returned to the same level of sport after single- revision and multiple-revision ACL reconstruction, yet significantly more in the former. More patients who underwent multiple revisions gave up their sport. Functional scores were higher for single-revision than multiple-revision surgeries.
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Affiliation(s)
- Georges El Khoury
- Clinique du Sport Paris, Paris, France
- Hôpital Pitié Salpêtrière, Paris, France
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20
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Devitt BM, Klemm HJ, Kirby J, Batty LM, Webster KE, Whitehead TS, Feller JA. Effect of Radiological Evidence of Kaplan Fiber Injury on the Clinical and Functional Outcomes After Acute Anterior Cruciate Ligament Reconstruction. Am J Sports Med 2022; 50:3557-3564. [PMID: 36178144 DOI: 10.1177/03635465221124249] [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] [Indexed: 01/31/2023]
Abstract
BACKGROUND A paucity of information is available regarding the clinical outcomes of patients with radiological evidence of Kaplan fiber (KF) injury who undergo anterior cruciate ligament (ACL) reconstruction (ACLR). PURPOSE/HYPOTHESIS The purpose was to compare clinical and functional outcomes in patients undergoing acute primary ACLR with and without magnetic resonance imaging (MRI) evidence of KF injury. The hypothesis was that there would be no difference in clinical or functional outcomes in patients with versus those without radiological evidence of KF injury. STUDY DESIGN Cohort study; Level of evidence, 3. METHODS MRI analysis was conducted on patients in a longitudinal prospective study of ACL injury. Only patients who had an MRI scan and had undergone isolated primary ACLR within 60 days of injury were included. MRI was performed using standard knee protocols, and diagnostic criteria were applied to identify KF injury. A total of 32 patients with KF injury (mean age, 24.2 years; 21 male, 11 female) were identified and matched for sex, age, graft type, and preinjury activity with 90 patients who had intact KF. Patients were followed up at 12 months with KT-1000 arthrometer measurements of side-to-side difference in anterior knee laxity, single- and triple-hop limb symmetry index (LSI), Marx activity and International Knee Documentation Committee (IKDC) scores, and return to sport (RTS) rates at 12 months and 24 months. RESULTS No differences were found in anterior knee laxity and single- and triple-hop LSI values between the KF-intact and KF-injured cohorts at 12 months. No differences in Marx and IKDC scores were found between the groups at 12 months and 2 years. The overall rate of RTS within 24 months was 75% (92/122), and 5 patients (2 KF-injured; 3 KF-intact) had a subsequent graft rupture. CONCLUSION We found no difference in clinical or functional outcomes in patients with and without radiological evidence of KF injury who underwent acute primary ACLR. Based on these findings, the radiological presence of KF injury at the time of acute ACL injury should not be regarded as a risk factor for a negative prognosis after ACLR.
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Affiliation(s)
- Brian M Devitt
- OrthoSport Victoria Research Unit, Richmond, Melbourne, Victoria, Australia.,School of Allied Health, La Trobe University, Melbourne, Victoria, Australia
| | - Haydn J Klemm
- OrthoSport Victoria Research Unit, Richmond, Melbourne, Victoria, Australia
| | - Julia Kirby
- OrthoSport Victoria Research Unit, Richmond, Melbourne, Victoria, Australia
| | - Lachlan M Batty
- OrthoSport Victoria Research Unit, Richmond, Melbourne, Victoria, Australia.,School of Allied Health, La Trobe University, Melbourne, Victoria, Australia
| | - Kate E Webster
- School of Allied Health, La Trobe University, Melbourne, Victoria, Australia
| | | | - Julian A Feller
- OrthoSport Victoria Research Unit, Richmond, Melbourne, Victoria, Australia.,School of Allied Health, La Trobe University, Melbourne, Victoria, Australia
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21
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Hopper GP, Pioger C, Philippe C, El Helou A, Campos JP, Gousopoulos L, Carrozzo A, Vieira TD, Sonnery-Cottet B. Risk Factors for Anterior Cruciate Ligament Graft Failure in Professional Athletes: An Analysis of 342 Patients With a Mean Follow-up of 100 Months From the SANTI Study Group. Am J Sports Med 2022; 50:3218-3227. [PMID: 36177758 DOI: 10.1177/03635465221119186] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
BACKGROUND Anterior cruciate ligament (ACL) injuries are among the most common knee injuries sustained in elite sport, and athletes generally undergo ACL reconstruction (ACLR) to facilitate their return to sport. ACL graft rupture is a career-threatening event for elite athletes. PURPOSE/HYPOTHESIS The purpose of this study was to determine the risk factors for graft failure in professional athletes undergoing ACLR. It was hypothesized that athletes who underwent combined ACLR with a lateral extra-articular procedure (LEAP) would experience significantly lower rates of graft rupture in comparison with those who underwent isolated ACLR. STUDY DESIGN Cohort study; Level of evidence, 3. METHODS Professional athletes who underwent primary ACLR with a minimum follow-up of 2 years were identified from the Santy database. Patients were excluded if they underwent major concomitant procedures, including multiligament reconstruction surgery or osteotomy. Further ipsilateral knee injury, contralateral knee injury, and any other reoperations or complications after the index procedure were identified by interrogation of the database and review of the medical notes. RESULTS A total of 342 athletes with a mean follow-up of 100.2 ± 51.9 months (range, 24-215 months) were analyzed. Graft failures totaling 31 (9.1%) were reported, requiring revision surgery because of symptomatic instability. The rate of graft failure was significantly higher when ACLR was not combined with a LEAP (15.5% vs 6.0%; P = .0105) and in athletes aged 21 years or younger (13.8% vs 6.6%; P = .0290). A multivariate analysis was performed using the Cox model and demonstrated that athletes undergoing an isolated ACLR were at >2-fold risk of ACL graft rupture (hazard ratio [HR], 2.678 [1.173; 4.837], P = .0164) when compared with those undergoing a combined ACLR with a LEAP. Additionally, athletes aged ≤21 years were also at >2-fold risk of graft failure (HR, 2.381 [1.313; 5.463]; P = .0068) than those aged >21 years. Sex, sport, and graft type were not found to be significant risk factors for graft failure. CONCLUSION Professional athletes undergoing isolated ACLR and aged ≤21 years are at >2-fold greater risk of graft failure. Orthopaedic surgeons treating elite athletes should combine an ACLR with a LEAP to improve ACL graft survivorship.
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Affiliation(s)
- Graeme P Hopper
- NHS Glasgow and Clyde South Glasgow University Hospitals NHS Trust Glasgow, Glasgow, UK.,Centre Orthopédique Santy, Lyon, France; Hôpital Privé Jean Mermoz, Ramsay-Générale de Santé, Lyon, France
| | - Charles Pioger
- Centre Orthopédique Santy, Lyon, France; Hôpital Privé Jean Mermoz, Ramsay-Générale de Santé, Lyon, France.,Hôpital Ambroise-Paré, Department of Orthopedic Surgery, Boulogne-Billancourt, Île-de-France, France
| | - Corentin Philippe
- Centre Orthopédique Santy, Lyon, France; Hôpital Privé Jean Mermoz, Ramsay-Générale de Santé, Lyon, France
| | - Abdo El Helou
- Centre Orthopédique Santy, Lyon, France; Hôpital Privé Jean Mermoz, Ramsay-Générale de Santé, Lyon, France
| | - Joao Pedro Campos
- Centre Orthopédique Santy, Lyon, France; Hôpital Privé Jean Mermoz, Ramsay-Générale de Santé, Lyon, France
| | - Lampros Gousopoulos
- Centre Orthopédique Santy, Lyon, France; Hôpital Privé Jean Mermoz, Ramsay-Générale de Santé, Lyon, France
| | - Alessandro Carrozzo
- Centre Orthopédique Santy, Lyon, France; Hôpital Privé Jean Mermoz, Ramsay-Générale de Santé, Lyon, France.,University of Rome La Sapienza, Orthopaedics and Traumatology Rome, Lazio, Italy
| | - Thais Dutra Vieira
- Centre Orthopédique Santy, Lyon, France; Hôpital Privé Jean Mermoz, Ramsay-Générale de Santé, Lyon, France
| | - Bertrand Sonnery-Cottet
- Centre Orthopédique Santy, Lyon, France; Hôpital Privé Jean Mermoz, Ramsay-Générale de Santé, Lyon, France
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22
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Monaco E, Carrozzo A, Saithna A, Conteduca F, Annibaldi A, Marzilli F, Minucci M, Sonnery-Cottet B, Ferretti A. Isolated ACL Reconstruction Versus ACL Reconstruction Combined With Lateral Extra-articular Tenodesis: A Comparative Study of Clinical Outcomes in Adolescent Patients. Am J Sports Med 2022; 50:3244-3255. [PMID: 36113005 DOI: 10.1177/03635465221118377] [Citation(s) in RCA: 17] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
BACKGROUND Young patients undergoing anterior cruciate ligament (ACL) reconstruction (ACLR) are at a particularly high risk of graft ruptures compared with adults. Recent studies have demonstrated significant reductions in ACL graft rupture rates in high-risk adult populations when a lateral extra-articular procedure is performed, but comparative studies in pediatric and adolescent populations are currently lacking in the literature. PURPOSE/HYPOTHESIS The purpose of this study was to compare the clinical outcomes of isolated ACLR versus combined ACLR and lateral extra-articular tenodesis (LET) when using the Arnold-Coker modification of the MacIntosh procedure in early adolescent patients. The hypothesis was that combined procedures would be associated with a significantly reduced risk of graft ruptures. STUDY DESIGN Cohort study; Level of evidence, 3. METHODS A retrospective analysis of consecutive early adolescent patients who underwent ACLR using a hamstring tendon autograft with or without the Arnold-Coker modification of the MacIntosh procedure was conducted. Patients with ≥1 additional risk factors for a graft rupture were offered LET in addition to ACLR (pivot-shift grade 2 or 3, high level of sporting activity defined as Tegner activity score ≥7, participation in pivoting sports, and Segond fractures). Clinical outcomes including graft rupture rates, patient-reported outcome measure scores (Knee injury and Osteoarthritis Outcome Score and subjective International Knee Documentation Committee), knee stability, return-to-sports rates, reoperation rates, and complications were assessed. Comparisons between variables were assessed with the chi-square or Fisher exact test for categorical variables and the Student or Wilcoxon test for quantitative variables. Multivariate analyses were undertaken to evaluate risk factors for a graft rupture. RESULTS A total of 111 patients with a mean follow-up of 43.8 ± 17.6 months (range, 24-89 months) were included in the study; 40 patients underwent isolated ACLR, and 71 underwent ACLR + LET. The addition of LET to ACLR was associated with a significantly lower graft rupture rate compared with isolated ACLR (0.0% vs 15.0%, respectively; odds ratio, 15.91 [95% CI, 1.81-139.44]; P = .012). It was also associated with significantly better knee stability (pivot-shift grade 3: 0.0% vs 11.4%, respectively; P = .021) (side-to-side anteroposterior laxity difference >5 mm: 0.0% vs 17.1%, respectively; P = .003) and Tegner activity scores (7 vs 6, respectively; P = .010). There were no significant differences between the groups regarding the Patient Acceptable Symptom State for the patient-reported outcome measures, nor for any of the other outcome measures evaluated, and no differences in the rate of non-graft rupture related reoperations or complications. The ACLR + LET group exceeded the minimal clinically important difference with respect to the Tegner activity scale. CONCLUSION In a retrospective comparative cohort study of adolescents, combined ACLR and LET was associated with a significantly lower graft rupture rate and no difference in non-graft rupture related reoperations or complications compared with isolated ACLR.
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Affiliation(s)
- Edoardo Monaco
- Orthopaedic Unit, Sant'Andrea University Hospital, La Sapienza University, Rome, Italy
| | - Alessandro Carrozzo
- Orthopaedic Unit, Sant'Andrea University Hospital, La Sapienza University, Rome, Italy
| | | | - Fabio Conteduca
- Orthopaedic Unit, Sant'Andrea University Hospital, La Sapienza University, Rome, Italy
| | - Alessandro Annibaldi
- Orthopaedic Unit, Sant'Andrea University Hospital, La Sapienza University, Rome, Italy
| | - Fabio Marzilli
- Orthopaedic Unit, Sant'Andrea University Hospital, La Sapienza University, Rome, Italy
| | - Marta Minucci
- Orthopaedic Unit, Sant'Andrea University Hospital, La Sapienza University, Rome, Italy
| | | | - Andrea Ferretti
- Orthopaedic Unit, Sant'Andrea University Hospital, La Sapienza University, Rome, Italy
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23
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Mogos Ș, Antonescu D, Stoica IC, D'Ambrosi R. Superior rotational stability and lower re-ruptures rate after combined anterolateral and anterior cruciate ligament reconstruction compared to isolated anterior cruciate ligament reconstruction: a 2-year prospective randomized clinical trial. PHYSICIAN SPORTSMED 2022:1-8. [PMID: 35968574 DOI: 10.1080/00913847.2022.2112914] [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] [Indexed: 10/15/2022]
Abstract
PURPOSE The purpose of the current prospective randomized clinical trial (RCT) was to compare the clinical outcomes of combined anterior cruciate ligament (ACL) and anterolateral ligament (ALL) reconstruction with those of isolated ACL reconstruction and evaluate the re-rupture rate between the two study groups. METHODS This prospective RCT included 58 patients (43 men and 15 women) who underwent ACL reconstruction, either isolated (Group I: 26 patients) or combined with the ALL reconstruction (Group II: 32 patients). Preoperatively, the two groups differed in age and rate of medial meniscal injuries. The patients were evaluated preoperatively and postoperatively during the time points corresponding to 6 (T1) weeks, 12 (T2) weeks, 6 (T3) months, 12 (T4) months, and 24 (T5) months. The evaluation included the clinical examination (comprising Lachman test, Pivot Shift test, Range of Motion, and Rolimeter differential anterior laxity), the objective clinical score (Objective IKDC [The International Knee Documentation Committee] score), and the subjective clinical scores (comprising Subjective IKDC score, Lysholm score, and Tegner activity score). The postoperative complications of all the patients were recorded. RESULTS Both the groups reported a significant improvement in clinical scores during the final follow-up as compared to the preoperative value (p < 0.05). The only differences between the two groups were observed with respect to the pivot shift test during each follow-up, wherein more patients from group I reported a pivot shift test grade I as compared to group II (p < 0.05). Three patients from group I reported a re-rupture of the operated knee, whereas no patients from group II reported new ruptures (p = 0.041). CONCLUSIONS Combined ACL and ALL reconstruction has proven to be more effective in obtaining a high grade of rotational knee stability during mid-term follow-up as compared to isolated ACL reconstruction along with a significantly lower rate of re-ruptures. LEVEL OF EVIDENCE Level I: Randomized Clinical Trial. REGISTRATION researchregistry5873: www.researchregistry.com.
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Affiliation(s)
| | - Dinu Antonescu
- University of Medicine and Pharmacy Carol Davila Bucharest, Bucuresti, Romania
| | - Ioan-Cristian Stoica
- Foișor Orthopaedics Hospital Bucharest, Romania.,University of Medicine and Pharmacy Carol Davila Bucharest, Bucuresti, Romania
| | - Riccardo D'Ambrosi
- IRCCS Istituto Ortopedico Galeazzi, Milan, Italy.,Dipartimento di Scienze Biomediche per la Salute, Universit' degli Studi di Milano, Milan, Italy
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24
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Anatomy, Biomechanics, and Reconstruction of the Anterolateral Ligament of the Knee Joint. MEDICINA (KAUNAS, LITHUANIA) 2022; 58:medicina58060786. [PMID: 35744048 PMCID: PMC9228568 DOI: 10.3390/medicina58060786] [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: 05/06/2022] [Revised: 06/06/2022] [Accepted: 06/09/2022] [Indexed: 11/17/2022]
Abstract
Despite remarkable advances in the clinical outcomes after anterior cruciate ligament reconstructions (ACLRs), residual rotational instability of the knee joint remains a major concern. Since the anterolateral ligament (ALL) on the knee joint has been “rediscovered”, the role of anterolateral structures, including ALL and deep iliotibial band, as secondary stabilizers of anterolateral rotatory instability has gained interest. This interest has led to the resurgence of anterolateral procedures combined with ACLRs to restore rotational stability in patients with anterior cruciate ligament (ACL) deficiencies. However, the difference in concepts between anterolateral ligament reconstructions (ALLRs) as anatomical reconstruction and lateral extra-articular tenodesis (LETs) as non-anatomical reinforcement has been conflicting in present literature. This study aimed to review the anatomy and biomechanics of anterolateral structures, surgical techniques, and the clinical outcomes of anterolateral procedures, including LET and ALLR, in patients with ACL deficiencies.
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25
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Rayes J, Ouanezar H, Haidar IM, Ngbilo C, Fradin T, Vieira TD, Freychet B, Sonnery-Cottet B. Revision Anterior Cruciate Ligament Reconstruction Using Bone-Patellar Tendon-Bone Graft Combined With Modified Lemaire Technique Versus Hamstring Graft Combined With Anterolateral Ligament Reconstruction: A Clinical Comparative Matched Study With a Mean Follow-up of 5 Years From The SANTI Study Group. Am J Sports Med 2022; 50:395-403. [PMID: 34898285 DOI: 10.1177/03635465211061123] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
BACKGROUND Additional lateral extra-articular tenodesis (LET) has recently been correlated with improved clinical outcomes and reduced failure rates in revision anterior cruciate ligament (ACL) reconstruction (ACLR). However, no data are available on clinical outcomes and reoperation after revision ACLR using different LET procedures. PURPOSE To compare the clinical outcomes of ACL + anterolateral ligament (ALL) reconstruction using hamstring tendon graft (HT-ALL) and a bone-patellar tendon-bone (BPTB) graft + modified Lemaire tenodesis procedure (BPTB-Lemaire) in the setting of revision ACLR and to determine whether ALL reconstruction is associated with an increased rate of adverse outcomes when compared with a modified Lemaire tenodesis procedure. STUDY DESIGN Cohort study; Level of evidence, 3. METHODS Descriptive data and clinical outcomes were prospectively collected from patients who underwent revision ACLR with LET between 2009 and 2018 with a minimum follow-up of 2 years. Patients with an HT autograft combined with ALL reconstruction (HT-ALL group) were matched in a 1:1 propensity ratio to patients with a BPTB autograft combined with a modified Lemaire LET procedure (BPTB-Lemaire group). The evaluated parameters included complications and reoperations; knee laxity tests; return to sports; and various scores, including the Lysholm knee score, Tegner activity scale, Anterior Cruciate Ligament Return to Sport After Injury scale, Marx activity rating scale, International Knee Documentation Committee subjective knee evaluation form, and Knee injury and Osteoarthritis Outcome Score. RESULTS In total, 36 matched pairs were included in the analysis. The mean follow-up durations for the BPTB-Lemaire and HT-ALL groups were 56 ± 35 and 57 ± 23 months, respectively (P = .91). No significant differences were found in graft rupture rate (HT-ALL, 0%; BPTB-Lemaire, 11.1%; P = .13) or reoperations (HT-ALL, 8.3%; BPTB-Lemaire, 22.2%; P = .23). No specific complications with regard to LET were noted in either group. Additionally, there were no significant differences in knee laxity parameters, return to sports, or clinical scores between the groups at the final follow-up, except for the Tegner activity scale score (HT-ALL, 6.4; BPTB-Lemaire, 7.3; P = .03). HT-ALL was associated with a shorter surgical time (41.4 vs 59.8 minutes; P < .0001). CONCLUSION HT-ALL was at least equivalent, in terms of clinical outcomes, to the more commonly performed procedure, BPTB-Lemaire. Performing ALL reconstruction in the setting of revision ACLR is therefore safe and effective.
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Affiliation(s)
- Johnny Rayes
- Centre Orthopédique Santy, Lyon, France.,Hôpital Privé Jean Mermoz, Ramsay-Générale de Santé, Lyon, France
| | | | - Ibrahim M Haidar
- Centre Orthopédique Santy, Lyon, France.,Hôpital Privé Jean Mermoz, Ramsay-Générale de Santé, Lyon, France
| | - Cedric Ngbilo
- Centre Orthopédique Santy, Lyon, France.,Hôpital Privé Jean Mermoz, Ramsay-Générale de Santé, Lyon, France
| | - Thomas Fradin
- Centre Orthopédique Santy, Lyon, France.,Hôpital Privé Jean Mermoz, Ramsay-Générale de Santé, Lyon, France
| | - Thais Dutra Vieira
- Centre Orthopédique Santy, Lyon, France.,Hôpital Privé Jean Mermoz, Ramsay-Générale de Santé, Lyon, France
| | - Benjamin Freychet
- Centre Orthopédique Santy, Lyon, France.,Hôpital Privé Jean Mermoz, Ramsay-Générale de Santé, Lyon, France
| | - Bertrand Sonnery-Cottet
- Centre Orthopédique Santy, Lyon, France.,Hôpital Privé Jean Mermoz, Ramsay-Générale de Santé, Lyon, France
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26
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[Anterolateral stabilization using the modified ellison technique-Treatment of anterolateral instability and reduction of ACL re-rupture risk]. OPERATIVE ORTHOPADIE UND TRAUMATOLOGIE 2021; 34:231-238. [PMID: 34729632 DOI: 10.1007/s00064-021-00741-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/17/2020] [Revised: 12/06/2020] [Accepted: 12/10/2020] [Indexed: 10/19/2022]
Abstract
OBJECTIVE The goal of the modified Ellison operation as a supplement to a conventional anterior cruciate ligament (ACL) reconstruction is to decrease anterolateral rotational instability of a knee joint after ACL rupture, to improve the stability and prevent ACL re-rupture. INDICATIONS An ACL rupture with high risk of re-rupture (young age, high-performance sport, hyperlaxity, contralateral ACL rupture in history), increased subjective and objective anterolateral rotational instability of the knee after ACL rupture, ACL re-rupture. CONTRAINDICATIONS Gonarthrosis, additive instabilities (e.g. posterolateral, medial), non-anatomical ACL reconstruction with persistent instability, general contraindications to surgery (e.g. infections), chronic irritation of the knee joint. SURGICAL TECHNIQUE Supine position. Mark the typical landmarks. Incision from Gerdy's tubercle extending proximally along the iliotibial tract (ITT) to the lateral collateral ligament (approx. 5 cm). Incise the ITT in the line of its fibers about 10 mm anterior to its posterior border and continue the incision proximally to 5 mm proximal to the LCL. Make a parallel incision 10-12 mm anterior to the first incision. Use sharp subperiosteal dissection to elevate the strip of the ITT from Gerdy's tubercle. Secure the distal end of the ITT strip with a nonabsorbable suture (e.g. FiberWire No. 2, Arthrex, Naples, USA). Expose the LCL and pass the ITT strip deep to the LCL from proximal to distal and back to Gerdy's tubercle. Reattach the distal end of the strip of the ITT to its original position at Gerdy's tubercle with a bone anchor. The defect in the ITT can be closed with an absorbable suture (e.g. Vicryl, Ethicon, USA) in the proximal part. Layered closure. POSTOPERATIVE MANAGEMENT Knee brace for at least 6 weeks, movement limitation of 0‑0-90° for 6 weeks, 2 weeks 20 kg partial weight bearing. RESULTS A total of 36 patients (mean age 18.9 years) with a high risk of ACL re-rupture have been treated with ACL reconstruction and modified Ellison procedure. Follow-up over 2 years. Of the patients 35 returned to the previous sports level, 1 patient suffered a re-rupture, 2 patients had cyclops resection and 1 patient contralateral ACL rupture.
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27
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Sonnery-Cottet B, Haidar I, Rayes J, Fradin T, Ngbilo C, Vieira TD, Freychet B, Ouanezar H, Saithna A. Long-term Graft Rupture Rates After Combined ACL and Anterolateral Ligament Reconstruction Versus Isolated ACL Reconstruction: A Matched-Pair Analysis From the SANTI Study Group. Am J Sports Med 2021; 49:2889-2897. [PMID: 34351825 DOI: 10.1177/03635465211028990] [Citation(s) in RCA: 58] [Impact Index Per Article: 19.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
BACKGROUND Clinical studies have demonstrated significant advantages of combined anterior cruciate ligament and anterolateral ligament reconstruction (ACL+ALLR) over isolated ACL reconstruction (ACLR) with respect to reduced graft rupture rates, a lower risk of reoperation for secondary meniscectomy, improved knee stability, and higher rates of return to sports. However, no long-term studies exist. PURPOSE/HYPOTHESIS The purpose of this study was to compare the outcomes of isolated ACLR versus ACL+ALLR at long-term follow-up. The hypothesis was that patients who underwent combined procedures would experience significantly lower rates of graft rupture. STUDY DESIGN Cohort study; Level of evidence, 3. METHODS Patients undergoing primary ACL+ALLR between January 2011 and March 2012 were propensity matched in a 1:1 ratio to patients who underwent isolated ACLR during the same period. A combination of face-to-face and telemedicine postoperative follow-up was undertaken. At the end of the study period (March 2020), medical notes and a final telemedicine interview were used to determine whether patients had experienced any complications or reoperations. The Knee injury and Osteoarthritis Outcome Score, International Knee Documentation Committee score, Lysholm score, and Tegner score were collected for all patients. Graft survivorship was assessed using Kaplan-Meier analysis. Logistic regression was performed to account for the potential effect of activity level on graft rupture rates. RESULTS A total of 86 matched pairs were included in the study. The mean ± SD age was 32.2 ± 8.8 years (range, 22-67 years) in the ACL+ALLR group and 34.7 ± 8.5 years (range, 21-61 years) in the isolated ACLR group. The mean duration of follow-up was 104.33 ± 3.74 months (range, 97-111 months). Patients who underwent combined ACL+ALLR versus isolated ACLR experienced significantly better ACL graft survivorship (96.5% vs 82.6%, respectively; P = .0027), lower overall rates of reoperation (15.3% vs 32.6%; P < .05), and lower rates of revision ACLR (3.5% vs 17.4%; P < .05). Patients undergoing isolated ACLR were at >5-fold greater risk of graft rupture (odds ratio, 5.549; 95% CI, 1.431-21.511; P = .0132), regardless of their preinjury activity level. There were no significant differences between groups with respect to other complications or any clinically important differences in patient-reported outcome measures. CONCLUSION Patients who underwent combined ACL+ALLR experienced significantly better long-term ACL graft survivorship, lower overall rates of reoperation, and no increase in complications compared with patients who underwent isolated ACLR. Further, patients who underwent isolated ACLR had a >5-fold increased risk of undergoing revision surgery at a mean follow-up of 104.3 months.
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Affiliation(s)
- Bertrand Sonnery-Cottet
- Centre Orthopédique Santy, Lyon, France.,Hôpital Privé Jean Mermoz, Ramsay-Générale de Santé, Lyon, France
| | - Ibrahim Haidar
- Centre Orthopédique Santy, Lyon, France.,Hôpital Privé Jean Mermoz, Ramsay-Générale de Santé, Lyon, France
| | - Johnny Rayes
- Centre Orthopédique Santy, Lyon, France.,Hôpital Privé Jean Mermoz, Ramsay-Générale de Santé, Lyon, France
| | - Thomas Fradin
- Centre Orthopédique Santy, Lyon, France.,Hôpital Privé Jean Mermoz, Ramsay-Générale de Santé, Lyon, France
| | - Cedric Ngbilo
- Centre Orthopédique Santy, Lyon, France.,Hôpital Privé Jean Mermoz, Ramsay-Générale de Santé, Lyon, France
| | - Thais Dutra Vieira
- Centre Orthopédique Santy, Lyon, France.,Hôpital Privé Jean Mermoz, Ramsay-Générale de Santé, Lyon, France
| | - Benjamin Freychet
- Centre Orthopédique Santy, Lyon, France.,Hôpital Privé Jean Mermoz, Ramsay-Générale de Santé, Lyon, France
| | - Herve Ouanezar
- HMS Group FIFA Medical Centre of Excellence Dubai, United Arab Emirates
| | - Adnan Saithna
- Arizona Brain, Spine & Sports Injuries Center, Scottsdale, Arizona, USA
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Beckers L, Vivacqua T, Firth AD, Getgood AMJ. Clinical outcomes of contemporary lateral augmentation techniques in primary ACL reconstruction: a systematic review and meta-analysis. J Exp Orthop 2021; 8:59. [PMID: 34383156 PMCID: PMC8360253 DOI: 10.1186/s40634-021-00368-5] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/22/2021] [Accepted: 06/24/2021] [Indexed: 12/19/2022] Open
Abstract
PURPOSE The purpose of this investigation was to systematically review the contemporary literature to determine if a lateral augmentation (LA) added to an Anterior Cruciate Ligament Reconstruction (ACLR) provides better clinical and patient reported outcomes compared to an isolated ACLR. METHODS A systematic review and meta-analysis was performed according to the Preferred Reporting Items for Systematic reviews and Meta-analyses (PRISMA) criteria. Two authors independently conducted an electronic search using MEDLINE® and Embase® on February 6th, 2021 for level I-III randomized controlled trials (RCT) and prospective cohort studies without randomization, published after 2012 and with a minimum of two year follow-up. Publications were included when they reported on the objective knee stability examination, patient reported outcome scores, return to sports or graft rupture rate of any type of primary, isolated ACLR compared to ACLR combined with any type of LA. RESULTS A total of 11 studies that reported on a combined total of 1892 unique patients were eligible for data extraction, including five RCTs and six prospective cohort studies. In 6 studies, an Anterolateral Ligament reconstruction (ALLR) was the LA of choice, while the 5 other publications used different types of Lateral Extra-articular Tenodesis (LET). A significant reduction in graft ruptures was found in patients treated with ACLR + LA (3%) compared to isolated ACLR (12%). Rotational laxity was significantly higher in isolated ACLR (14%) compared to ACLR + LA (6%). Addition of a LA reduced anterior translation when assessed via instrumented laxity testing. No significant difference was found in the patient reported outcome scores (IKDC and Tegner) between both patient groups, except for the Lysholm Score which was significant in favour of the ACLR + LA group. CONCLUSION Combination of a primary ACLR with a LA can significantly reduce the risk of graft rupture and provide better rotatory stability, without jeopardizing patient reported outcomes. LEVEL OF EVIDENCE Level III, Systematic Review of Level I, II and III studies.
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Affiliation(s)
- Lucas Beckers
- Department of Orthopedic Surgery, Fowler Kennedy Sport Medicine Clinic, University of Western Ontario, 3M Centre, 1151 Richmond Street, London, ON, N6A 3K7, Canada
| | - Thiago Vivacqua
- Department of Orthopedic Surgery, Fowler Kennedy Sport Medicine Clinic, University of Western Ontario, 3M Centre, 1151 Richmond Street, London, ON, N6A 3K7, Canada
| | - Andrew D Firth
- Health and Rehabilitation Sciences, Faculty of Health Sciences, University of Western Ontario, 3M Centre, 1151 Richmond Street, London, ON, N6A 3K7, Canada
| | - Alan M J Getgood
- Department of Orthopedic Surgery, Fowler Kennedy Sport Medicine Clinic, University of Western Ontario, 3M Centre, 1151 Richmond Street, London, ON, N6A 3K7, Canada.
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Feller JA, Devitt BM, Webster KE, Klemm HJ. Augmentation of Primary ACL Reconstruction With a Modified Ellison Lateral Extra-articular Tenodesis in High-Risk Patients: A Pilot Study. Orthop J Sports Med 2021; 9:23259671211021351. [PMID: 34409112 PMCID: PMC8366134 DOI: 10.1177/23259671211021351] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/08/2021] [Accepted: 03/18/2021] [Indexed: 01/26/2023] Open
Abstract
BACKGROUND Lateral extra-articular tenodesis (LET) has been used to augment primary anterior cruciate ligament (ACL) reconstruction to reduce the risk of reinjury. Most LET procedures result in a construct that is fixed to both the femur and the tibia. In a modified Ellison procedure, the construct is only fixed distally, reducing the risk of inadvertently overconstraining the lateral compartment. PURPOSE To evaluate the use of the modified Ellison procedure in a cohort of patients deemed to be at a high risk of further ACL injury after primary ACL reconstruction. STUDY DESIGN Case series; Level of evidence, 4. METHODS Included were 25 consecutive patients with at least 2 of the following risk factors: age <20 years at the time of surgery, previous contralateral ACL reconstruction, positive family history of ACL rupture (parent or sibling), generalized ligamentous laxity (Beighton ≥4), grade 3 pivot shift in the consulting room, a desire to return to a pivoting sport, and an elite or professional status. All patients underwent primary ACL reconstruction with an additional modified Ellison procedure. Postoperatively, patients completed the IKDC subjective knee evaluation form (International Knee Documentation Committee), KOOS Quality of Life subscale (Knee injury and Osteoarthritis Outcome Score), ACL-Return to Sport After Injury Scale, Marx Activity Rating Scale, and SANE score (Single Assessment Numeric Evaluation). RESULTS At 12-month follow-up, the mean outcome scores were as follows: SANE, 94/100; IKDC, 92/100; Marx, 13/16; ACL-Return to Sport, 85/100; and KOOS, 77/100. At 24 months, return-to-sport data were available for 23 of 25 patients; 17 (74%) were playing at the same level or higher than preinjury and 2 at a lower level. One patient (4%) sustained a contact mechanism graft rupture at 12 months. There were 2 (9%) contralateral ACL injuries, including 1 ACL graft rupture, at 11 and 22 months postoperatively. There was a further contralateral ACL graft rupture at 26 months. CONCLUSION The use of the modified Ellison procedure as a LET augmentation of a primary ACL reconstruction to produce a low graft rupture rate appeared to be safe in a cohort considered to be at a high risk of reinjury. The procedure showed promise in terms of reducing further graft injuries.
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Affiliation(s)
- Julian A. Feller
- OrthoSport Victoria Research Unit, Epworth HealthCare, Melbourne, Australia
| | - Brian M. Devitt
- OrthoSport Victoria Research Unit, Epworth HealthCare, Melbourne, Australia
| | - Kate E. Webster
- School of Allied Health, La Trobe University, Melbourne, Australia
| | - Haydn J. Klemm
- OrthoSport Victoria Research Unit, Epworth HealthCare, Melbourne, Australia
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Espregueira-Mendes J. Is the anterolateral ligament the smoking gun to explain rotational knee laxity or just vaporware? J ISAKOS 2021; 6:63-65. [PMID: 33832978 DOI: 10.1136/jisakos-2020-000529] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
Affiliation(s)
- João Espregueira-Mendes
- Clínica do Dragão, Espregueira-Mendes Sports Centre - FIFA Medical Centre of Excellence, Porto, Portugal .,Dom Henrique Research Centre, Porto, Portugal.,School of Medicine, University of Minho, Braga, Portugal.,ICVS/3B's-PT Government Associate Laboratory, Braga/Guimarães, Portugal.,3B's Research Group-Biomaterials, Biodegradablesand Biomimetics, Headquarters of the European Institute of Excellence on Tissue Engineering and Regenerative Medicine, University of Minho, AvePark, Parque de Ciência e Tecnologia, Zona Industrial da Gandra, Barco, Guimarães, Portugal
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