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Kantrowitz DE, Colvin A. Comprehensive Clinical Examination of ACL Injuries. Clin Sports Med 2024; 43:311-330. [PMID: 38811112 DOI: 10.1016/j.csm.2023.08.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/31/2024]
Abstract
A comprehensive clinical examination of the potentially anterior cruciate ligament (ACL)-deficient knee should proceed as follows: inspection; palpation; range of motion; varus and valgus stress; neurovascular status; and finally provocative maneuvers. The Lachman, anterior drawer, Lever, and pivot shift tests are all greater than 90% specific for ACL pathology. Due to the relatively high coincidence of ACL injuries and those to the posterior cruciate ligament, posterolateral corner , posteromedial corner , and menisci, it is critical that the examiner perform provocative maneuvers to evaluate the integrity of these structures as well.
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Affiliation(s)
- David E Kantrowitz
- Department of Orthopedics, The Mount Sinai Hospital, 5 E 98th Street, 9th floor, New York, NY 10029, USA.
| | - Alexis Colvin
- Department of Orthopedics, The Mount Sinai Hospital, 5 E 98th Street, 9th floor, New York, NY 10029, USA
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2
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Bechis M, Rosso F, Blonna D, Rossi R, Bonasia DE. Lateral Extra-Articular Tenodesis with Indirect Femoral Fixation Using an Anterior Cruciate Ligament Reconstruction Suspensory Device. J Clin Med 2024; 13:377. [PMID: 38256513 PMCID: PMC10816928 DOI: 10.3390/jcm13020377] [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: 12/21/2023] [Revised: 01/05/2024] [Accepted: 01/08/2024] [Indexed: 01/24/2024] Open
Abstract
BACKGROUND The lateral extra-articular tenodesis (LET) procedure associated with anterior cruciate ligament (ACL) reconstruction can be considered in selected patients to diminish the risk of persistent rotatory instability and achieve a protective effect on the graft. Several techniques have been described in the literature to treat rotatory instability. Usually, a strip of the iliotibial band (ITB) is harvested from its middle while leaving the distal insertion, then passed underneath the lateral collateral ligament and fixed on the lateral aspect of the distal femur with various fixation methods such as staples, screws, anchors or extracortical suspensory devices. Despite their effectiveness, these fixation methods may be associated with complications such as lateral pain, over-constraint and tunnel convergence. METHODS This study presents a detailed surgical description of a new technique to perform an LET during ACL reconstruction with any type of graft fixing the ITB strip with the sutures of the ACL femoral button, comparing its pros and cons in relation to similar techniques found in the literature. CONCLUSIONS This technique represents a reproducible, easy to learn and inexpensive solution to perform a lateral extra-articular tenodesis associated with an ACL reconstruction using the high-resistance sutures of the femoral button.
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Affiliation(s)
- Marco Bechis
- AO Ordine Mauriziano Hospital, Department of Orthopedics and Traumatology, University of Torino, 10124 Turin, Italy
| | | | | | | | - Davide Edoardo Bonasia
- AO Ordine Mauriziano Hospital, Department of Orthopedics and Traumatology, University of Torino, 10124 Turin, Italy
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Dietvorst M, Verhagen S, van der Steen M, van Douveren FMP, Janssen RA. Anterolateral augmentation procedures during anterior cruciate ligament reconstructions in skeletally immature patients: Scoping review of surgical techniques and outcomes. J Exp Orthop 2024; 11:e12012. [PMID: 38455455 PMCID: PMC10915482 DOI: 10.1002/jeo2.12012] [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: 12/20/2023] [Accepted: 02/02/2024] [Indexed: 03/09/2024] Open
Abstract
Purpose Graft failure rates after anterior cruciate ligament reconstruction (ACLR) in children and adolescents are higher compared to adults. Anterolateral augmentation procedures have recently generated increased focus regarding their ability to reduce graft failure rates. Concerns in skeletally immatures are potential growth disturbances and overconstraint after anterolateral augmentation. The aim of this scoping review is to provide an overview of all current anterolateral augmentation procedures in skeletally immature patients and to discuss surgical techniques, clinical and biomechanical outcomes. Methods This scoping review was performed following the PRISMA (Preferred Reporting Items for Systematic Reviews and Meta-Analysis) statement extension for scoping reviews. On 22 December 2022, an information specialist performed a systematic literature search in Cochrane, PubMed (Medline) and EMBASE databases. Inclusion criteria were anterolateral augmentation procedures, including lateral extra-articular tenodesis (LET) and anterolateral ligament reconstruction (ALLR), in combination with ACLR in skeletally immatures. Results Twenty studies were included after screening 1.485 abstracts. Seventeen studies describe LET techniques, four studies ALLR techniques and one study both techniques. Biomechanical data is scarce and shows conflicting results. Two studies compared ACLR with LET to ACLR in skeletally immatures with promising results in favour of the combined procedure. There were no differences in outcomes between LET and ALLR. Conclusions Several LET and ALLR techniques have been described for skeletally immature patients and the first clinical data on LET and ALLR is available, which showed promising results. Further research is necessary to evaluate the risk of growth disturbances and overconstraint in skeletally immatures. Level of Evidence Level IV.
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Affiliation(s)
- Martijn Dietvorst
- Department of Orthopaedic Surgery & TraumaMaxima Medical CentreEindhovenThe Netherlands
| | - Stéphanie Verhagen
- Department of Orthopaedic Surgery & TraumaMaxima Medical CentreEindhovenThe Netherlands
| | - Marieke C. van der Steen
- Department of Orthopaedic Surgery & TraumaMaxima Medical CentreEindhovenThe Netherlands
- Department of Orthopaedic Surgery & TraumaCatharina Hospital EindhovenEindhovenThe Netherlands
| | | | - Rob P. A. Janssen
- Department of Orthopaedic Surgery & TraumaMaxima Medical CentreEindhovenThe Netherlands
- Orthopaedic Biomechanics, Department of Biomedical EngineeringEindhoven University of TechnologyEindhovenThe Netherlands
- Chair Value‑Based Health Care, Department of Paramedical SciencesFontys University of Applied SciencesEindhovenThe Netherlands
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Yao G, Liu Y, Zhou Z, Zhang X, Liu K, Fu X, Hua Z, Wang Z. A Cadaveric Study of the Optimal Isometric Region on the Anterolateral Surface of the Knee in Anterolateral Ligament Reconstruction. Orthop Surg 2024; 16:157-166. [PMID: 38031513 PMCID: PMC10782248 DOI: 10.1111/os.13938] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/25/2023] [Revised: 10/07/2023] [Accepted: 10/13/2023] [Indexed: 12/01/2023] Open
Abstract
OBJECTIVE Isolated intra-articular anterior cruciate ligament (ACL) reconstruction is not capable of restoring instability in many cases leading some to recommend concomitant anterolateral ligament (ALL) reconstruction. The satisfactory fixation site and graft length change are crucial in ligament reconstruction to restore the ALL function and avoid some unwanted graft behavior. The purpose of this investigation is to determine the optimal isometric region on the anterolateral aspect of the knee for ALL reconstruction using a three-dimensional optical instrument and a suture similar to an intraoperative isometric test. METHODS Six freshly frozen cadaveric human knees were used in this study. Data regarding the anterolateral surface were obtained using an optical measurement system to create a three-dimensional model. Nine points were selected on the femur (F1-F9) and tibia (Ta-Ti) respectively. The three-dimensional length change between each pair of tibial and femoral points was measured during passive knee flexion from 0° to 90° in 15° increments. Subsequently, five femoral points (A-E) were selected from the lateral femur, located in different areas relative to the lateral femoral epicondyle, and three tibial reference points (T1-T3) were selected in the isometric test. The changes in the length between each pair of reference points were measured using sutures. The 95% confidence interval for the rate of length change was estimated using the mean and standard deviation of the maximum rate of length change at different flexion angles, and the data were expressed as the mean (95% confidence interval) and compared with the maximum acceptable rate of change (10%). RESULTS The maximum acceptable change rate for ligament reconstruction is 10%, and the mean maximum rates and the 95% confidence interval (CI) of length change for the point combinations were calculated. Among all the combined points measured using the optical measurement system and the suture, the qualified point combination for reconstruction was F3 (8mm posterior and 8mm proximal to the lateral femoral epicondyle)-Tb (8mm proximal to the midpoint between the center of Gerdy's tubercle and the fibula head), A (posterior and proximal to the lateral femoral epicondyle)-T2 (10mm below the joint line)and A-T3 (15 mm below the joint line). The position of F3-Tb and A-T2 are close to each other. CONCLUSION The most isometric area of the femur for ALL reconstruction was posterior and proximal to the lateral femoral epicondyle. We recommend that the initial location of the femoral point be set at 8 mm posterior and 8 mm proximal to the lateral femoral epicondyle and the tibial point at approximately 10 mm below the joint line, midway between Gerdy's tubercle and fibular head, and subsequently adjusted to the most satisfactory position according to the isometric test.
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Affiliation(s)
- Gai Yao
- The Fifth Medial Center of Chinese PLA General HospitalBeijingChina
| | - Yang Liu
- Department of OsteoarthropathyThe First Affiliated Hospital of the Naval Medical UniversityShanghaiChina
| | - Zhiyou Zhou
- Department of OsteoarthropathyThe Third Affiliated Hospital of the Naval Medical UniversityShanghaiChina
| | - Xuchao Zhang
- Department of OsteoarthropathyThe First Affiliated Hospital of the Naval Medical UniversityShanghaiChina
| | - Kang Liu
- Department of OsteoarthropathyThe First Affiliated Hospital of the Naval Medical UniversityShanghaiChina
| | - Xiawei Fu
- Department of OsteoarthropathyThe First Affiliated Hospital of the Naval Medical UniversityShanghaiChina
| | - Zikai Hua
- Orthotek Laboratory, School of Mechatronics Engineering and AutomationShanghai UniversityShanghaiChina
| | - Zimin Wang
- Department of Orthopedic Surgery, Shanghai Ninth People's HospitalShanghai Jiao Tong University School of MedicineShanghaiChina
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Mostowy M, Ruzik K, Ebisz M, LaPrade RF, Malinowski K. Impaction Fractures of the Lateral Femoral Condyle Related to Anterior Cruciate Ligament Injury: A Scoping Review Concerning Diagnosis, Prevalence, Clinical Importance, and Management. Clin Orthop Surg 2023; 15:781-792. [PMID: 37811510 PMCID: PMC10551676 DOI: 10.4055/cios22278] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/25/2022] [Revised: 10/25/2022] [Accepted: 10/25/2022] [Indexed: 10/10/2023] Open
Abstract
Background During pivot-shift anterior cruciate ligament (ACL) injury, bone bruises or impaction fractures of the lateral femoral condyle (LFC-IF) may occur due to impaction between the posterior part of the lateral tibial plateau and anterocentral part of the LFC. The purpose of the study was to systematically review the literature concerning the diagnosis, prevalence, clinical importance, and management of LFC-IF occurring during ACL injuries. Methods Included were studies concerning impaction fractures of the anterocentral part of the LFC occurring during ACL injuries. Studies concerning only bone bruises or cartilage lesions, without subchondral bone impaction, were not included. A search was performed in Medline and Scopus databases, with final search in May 2022. A secondary search was conducted within the bibliographies of included articles and using "Cited In" option. Two authors independently extracted data in three domains: study design, LFC-IF characteristics, and LFC-IF importance and management. Results A total of 35 studies were included for review with several studies reporting on multiple domains. Summarily, 31 studies were on the diagnosis and prevalence, 19 studies reported on the clinical importance, and 4 studies reported on the management of LFC-IF. Conclusions A LFC-IF occurs due to the pivot-shift mechanism of ACL injury. Its radiological feature is defined as an impaction of terminal sulcus deeper than 1 mm and is present in up to 52% of patients with a torn ACL. An LFC-IF causes injury to the cartilage, probably leads to its progressive degeneration, and is significantly associated with an increased risk of a lateral meniscus injury. A large LFC-IF might be associated with greater rotational knee instability. Although several techniques of LFC-IF treatment were proposed, none of them has been evaluated on a large cohort of patients to date.
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Affiliation(s)
- Marcin Mostowy
- Orthopedic and Trauma Department, Veteran's Memorial Teaching Hospital in Lodz, Medical University of Lodz, Lodz, Poland
| | - Kacper Ruzik
- Department of Anatomical Dissection and Donation, Medical University of Lodz, Lodz, Poland
| | - Michał Ebisz
- Artromedical Orthopaedic Clinic, Belchatow, Poland
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McLeod KC, Barber FA. Pivot Shift Syndrome of the Knee. Sports Med Arthrosc Rev 2023; 31:34-40. [PMID: 37418172 DOI: 10.1097/jsa.0000000000000365] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/08/2023]
Abstract
The pivot shift test, in contrast to the Lachman or anterior drawer, is a manually subjective clinical test that simulates the injury mechanism. It is the most sensitive test to determine ACL insufficiency. This paper reviews the history, development, research, and treatment associated with the pivot shift phenomenon which is associated with tearing and loss of function of the knee anterior cruciate ligament. The pivot shift test most closely recapitulates what the symptomatic anterior cruciate ligament deficient patient feels is happening which is an abnormal translation and rotation of the injured joint during flexion or extension. The test is best conducted in the relaxed patient by applying knee flexion, tibial external rotation, and valgus stress. The pivot shift biomechanics and treatment measures are reviewed.
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Affiliation(s)
- Kevin C McLeod
- Baptist Health Specialty - Arkadelphia, Orthopedic Surgeon, 2915 Cypress Rd, Suite D, Arkadelphia, AR
| | - F Alan Barber
- Plano Orthopedic and Sports Medicine Center, Fellowship Director Emeritus, Plano, TX
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McKeithan LJ, Lameire DL, Tagliero AJ, Chahal J, Gwathmey FW, Lee CA. What's New in Sports Medicine. J Bone Joint Surg Am 2023; 105:582-590. [PMID: 36853964 DOI: 10.2106/jbjs.22.01385] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 03/02/2023]
Affiliation(s)
- Lydia J McKeithan
- Department of Orthopaedic Surgery, University of California Davis Health, Sacramento, California
| | - Darius L Lameire
- Division of Orthopaedic Surgery, Department of Surgery, University of Toronto, Toronto, Ontario, Canada
| | - Adam J Tagliero
- Department of Orthopaedic Surgery, University of Virginia, Charlottesville, Virginia
| | - Jaskarndip Chahal
- University of Toronto Orthopaedic Sports Medicine, Women's College Hospital, Toronto, Ontario, Canada
| | - F Winston Gwathmey
- Department of Orthopaedic Surgery, University of Virginia, Charlottesville, Virginia
| | - Cassandra A Lee
- Department of Orthopaedic Surgery, University of California Davis Health, Sacramento, California
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Perelli S, Gelber PE, Morales-Avalos R, Ronco S, Torres-Claramunt R, Espregueira-Mendes J, Monllau JC. Isolated lateral extra-articular tenodesis in ACL-deficient knees: in vivo knee kinematics and clinical outcomes. Knee Surg Sports Traumatol Arthrosc 2023:10.1007/s00167-023-07344-9. [PMID: 36810948 DOI: 10.1007/s00167-023-07344-9] [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: 11/10/2022] [Accepted: 02/08/2023] [Indexed: 02/24/2023]
Abstract
PURPOSE To carry out an in vivo kinematic analysis of isolated modified Lemaire lateral extra-articular tenodesis (LET) to explore its ability to modify the stability of anterior cruciate ligament (ACL) deficient knees. The secondary aim was to look at the clinical outcomes of the isolated LET to analyze whether biomechanical changes have an influence on clinical improvement or not. METHODS A total of 52 patients who underwent an isolated modified Lemaire LET were prospectively studied. Twenty-two were over 55-year-old patients with ACL rupture and subjective instability (group 1). They were followed up for 2 years postoperatively. Thirty were patients underwent a two-stage ACL revision (group 2). They were followed up for 4 months postoperatively (up to the second stage of the ACL revision). Preoperative, intraoperative, and postoperative kinematic analyses were carried out using the KiRA accelerometer and KT1000 arthrometer to look for residual anterolateral rotational instability and residual anteroposterior instability. Functional outcomes were measured with the single-leg vertical jump test (SLVJT) and the single-leg hop test (SLHT). Clinical outcomes were evaluated using the IKDC 2000, Lysholm, and Tegner scores. RESULTS A significant reduction of both rotational and anteroposterior instability was detected. It was present both with the patient under anesthesia (p < 0.001 and p = 0.007 respectively) as well as with the patient awake (p = 0.008 and p = 0.018 respectively). Postoperative analysis of knee laxity did not show any significant variation from the first to the last follow-up. Both the SLVJT and SLHT improved significantly at the last follow-up (p < 0.001 and p = 0.011 respectively). The mean values of both the IKDC and Lysholm and Tegner scores showed an improvement (p = 0.008; p = 0.012; p < 0.001). CONCLUSION The modified Lemaire LET improves the kinematics of ACL-deficient knees. The improvement in the kinematics leads to an improvement in subjective stability as well as in the function of the knee and in the clinical outcomes. At the 2-year follow-up, these improvements were maintained in a cohort of patients over 55 years. Following our findings, to reduce knee instability, an isolated LET in ACL-deficient knees may be used when ACL reconstruction in patients over 55 years is not indicated. LEVEL OF EVIDENCE Level IV.
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Affiliation(s)
- Simone Perelli
- Department of Surgery and Morphologic Science, Orthopaedic Surgery Service, Universitat Autònoma de Barcelona, Hospital del Mar, Barcelona, Spain. .,Knee and Arthroscopy Unit, Department of Orthopedic Surgery, Institut Catalá de Traumatologia I Medicina de L'Esport (I.C.A.T.M.E.), Hospital Universitari Dexeus, Universitat Autonoma de Barcelona, Barcelona, Spain.
| | - Pablo Eduardo Gelber
- Knee and Arthroscopy Unit, Department of Orthopedic Surgery, Institut Catalá de Traumatologia I Medicina de L'Esport (I.C.A.T.M.E.), Hospital Universitari Dexeus, Universitat Autonoma de Barcelona, Barcelona, Spain.,Department of Orthopaedic Surgery, Hospital de La Santa Creu I Sant Pau, Universitat Autonoma de Barcelona, Barcelona, Spain
| | - Rodolfo Morales-Avalos
- Department of Physiology, School of Medicine, Universidad Autonoma de Nuevo León (U.A.N.L.), Monterrey, Nuevo León, México.,Department of Orthopedic Surgery and Traumatology, Knee UnitSchool of Medicine and University Hospital "DrJosé Eleuterio González", Universidad Autonoma de Nuevo León (U.A.N.L.), Monterrey, Nuevo León, México
| | - Sergio Ronco
- Orthopaedic Surgery Department, E. Agnelli Hospital, Pinerolo, (Turin), Italy
| | - Raul Torres-Claramunt
- Department of Surgery and Morphologic Science, Orthopaedic Surgery Service, Universitat Autònoma de Barcelona, Hospital del Mar, Barcelona, Spain.,Knee and Arthroscopy Unit, Department of Orthopedic Surgery, Institut Catalá de Traumatologia I Medicina de L'Esport (I.C.A.T.M.E.), Hospital Universitari Dexeus, Universitat Autonoma de Barcelona, Barcelona, Spain
| | - João Espregueira-Mendes
- Clínica Espregueira FIFA Medical Centre of Excellence, Porto, Portugal.,School of Medicine, University of Minho, Braga, Portugal.,Dom Henrique Research Centre, Porto, Portugal.,ICVS/3B's-PT Government Associate Laboratory, Braga/Guimarães, Portugal.,3B's Research Group-Biomaterials, Biodegradables and Biomimetics, University of Minho, European Institute of Excellence On Tissue Engineering and Regenerative Medicine, Guimarães, Portugal
| | - Joan Carles Monllau
- Department of Surgery and Morphologic Science, Orthopaedic Surgery Service, Universitat Autònoma de Barcelona, Hospital del Mar, Barcelona, Spain.,Knee and Arthroscopy Unit, Department of Orthopedic Surgery, Institut Catalá de Traumatologia I Medicina de L'Esport (I.C.A.T.M.E.), Hospital Universitari Dexeus, Universitat Autonoma de Barcelona, Barcelona, Spain
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Pascual-Leone N, Chipman DE, Mintz DN, Cordasco FA, Fabricant PD, Green DW. The lateral femoral notch sign decreases in paediatric patients following anterior cruciate ligament reconstruction. J ISAKOS 2023; 8:11-14. [PMID: 36427801 DOI: 10.1016/j.jisako.2022.11.003] [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: 05/31/2022] [Revised: 10/27/2022] [Accepted: 11/15/2022] [Indexed: 11/23/2022]
Abstract
INTRODUCTION Anterior cruciate ligament (ACL) ruptures are common amongst paediatric patients, especially those participating in competitive sports. While magnetic resonance imaging (MRI) is typically used to confirm the diagnosis, certain radiologic findings can be indicative of an ACL tear, including a lateral femoral notch sign (LFNS) > 1.5 mm (mm). No study has focussed on understanding the resolution pattern of the LFNS in paediatric patients following ACL reconstruction (ACLR). The aim of this study is to determine whether the depth of the LFNS regresses following ACLR. The authors hypothesize that following ACLR, the LFNS will resolve. METHODS All patients who were treated for acute ACL rupture by one of two paediatric orthopaedic surgeons between 2015 and 2020 were collected; 321 patients with the age of 5-18 were collected. Patients were excluded if they underwent previous ipsilateral knee surgeries and if they did not have pre-operative knee radiographs; 274 patients met inclusion criteria. LFNS was measured on pre-operative (PreOp) and most recent post-operative (PostOp) radiographs. A comparison cohort of patients with an LFNS <1.5 mm matched by age within 1.5 years, sex, and laterality was also collected. The median difference was calculated by taking the difference between PreOp LFNS and PostOp LFNS of each participant and finding the median of those values. RESULTS A total of 274 pre-operative radiographs were analysed for an LFNS depth >1.5 mm. Seventeen radiographs met these criteria with a median age of 16.3 years and a median depth of 1.70 mm. Of the 17 radiographs, 8 (47.1%) of participants were skeletally immature. The median LFNS depth at most recent follow-up and median percent decrease were 1.50 mm and 28%, respectively. Only 11.8% of patients demonstrated no change in LFNS depth from PreOp to PostOp imaging. Wilcoxon signed-rank test indicated that the PreOp LFNS was significantly greater than the PostOp LFNS (p < 0.001). Mann-Whitney U tests with cases and the comparison cohort demonstrated no difference in the percent decrease (p = 0.106). CONCLUSION This study sought to understand the resolution of the LFNS depth following initial ACL rupture. At a median of 7.67 months following ACLR, the LFNS depth decreased significantly by 0.60 mm. These findings suggest that following ACL rupture, the paediatric LFNS has the potential to resolve. Future studies should aim to further assess the resolution pattern of the LFNS with advanced imaging, such as MRI.
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Affiliation(s)
- Nicolas Pascual-Leone
- Division of Pediatric Orthopedic Surgery, Hospital for Special Surgery, New York, NY, USA
| | - Danielle E Chipman
- Division of Pediatric Orthopedic Surgery, Hospital for Special Surgery, New York, NY, USA
| | - Douglas N Mintz
- Division of Radiology & Imaging, Hospital for Special Surgery, New York, NY, USA
| | - Frank A Cordasco
- Sports Medicine Institute, Hospital for Special Surgery, New York, NY, USA
| | - Peter D Fabricant
- Division of Pediatric Orthopedic Surgery, Hospital for Special Surgery, New York, NY, USA
| | - Daniel W Green
- Division of Pediatric Orthopedic Surgery, Hospital for Special Surgery, New York, NY, USA.
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10
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Function and strain of the anterolateral ligament part II: reconstruction. Knee Surg Sports Traumatol Arthrosc 2023; 31:390-398. [PMID: 32712685 DOI: 10.1007/s00167-020-06137-8] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/14/2020] [Accepted: 06/26/2020] [Indexed: 02/07/2023]
Abstract
PURPOSE Anterolateral rotatory instability (ALRI) may result from isolated ruptures of the anterior cruciate ligament (ACL) or combined lesions with the anterolateral ligament (ALL). Biomechanical studies have demonstrated that the ALL contributes to the overall rotational stability of the knee. The purpose of this study was to investigate the biomechanical function of anatomic ALL reconstruction (ALLrec) in the setting of a combined ACL and ALL injury and reconstruction. The hypothesis was that combined ACL reconstruction (ACLrec) and ALLrec (ACL/ALLrec) significantly reduces internal rotation and shows load sharing between both reconstructions compared with isolated ACLrec. METHODS Eight fresh-frozen cadaveric knees were evaluated using a six degrees of freedom knee simulator. Continuous passive motion and external loads were tested. Kinematic differences between ACLrec and combined ACL/ALLrec were compared. Additionally, ACL graft tension and ALL graft strain were measured continuously throughout the testing protocol. RESULTS Combined anatomic ACL/ALLrec significantly improved the internal rotatory stability compared with isolated ACLrec at 30°-90° under an internal rotation moment. During a static pivot-shift test, additional ALLrec showed no significant reduction of ap-translation. ALLrec resulted in an increase in ACL graft tension during continuous passive motion and with additional internal rotation moment. CONCLUSION In the case of a combined ACL and ALL deficiency, concurrent ACLrec and ALLrec significantly improved the rotatory stability of the knee compared with solely reconstructing the ACL at flexion angles ≥ 30°. Nevertheless, additional ALLrec with fixation at 60° and with low tension could not restore extension-near rotatory stability. For that reason, ALLrec with fixation at 60° flexion cannot be recommended in clinical application.
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11
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Randhawa S, Stavinoha TJ, Trivedi S, Ganley TJ, Tompkins M, Ellis H, Wilson P, Green DW, Fabricant PD, Musahl V, Shea KG. Paediatric reference anatomy for ACL reconstruction and secondary anterolateral ligament or lateral extra-articular tenodesis procedures. J ISAKOS 2022; 7:206-213. [PMID: 35589081 DOI: 10.1016/j.jisako.2022.04.008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2021] [Revised: 03/04/2022] [Accepted: 04/30/2022] [Indexed: 12/24/2022]
Abstract
OBJECTIVES For iliotibial band (ITB) lateral extra-articular tenodesis or anterolateral ligamentous/capsular reconstruction with anterior cruciate ligament reconstruction, a clear understanding of the referenced anterolateral knee anatomy is critical-especially given the risk of injury to the physis or key anterolateral structures in the paediatric population, which is at high-risk for primary and secondary anterior cruciate ligament injury. The purpose of this study was to quantitatively assess the anatomy of the knee physes, paediatric lateral collateral ligament (LCL) origin, popliteus origin and ITB tibial insertion. METHODS Nine paediatric cadaveric knee specimens with average age 4.2 years (range 2 months-10 years) underwent dissection to identify the LCL's and popliteus' femoral origins and the ITB's tibial insertion. Metallic marking pins demarcated precise anatomic attachment sites, and subsequent computerised tomography scans enabled quantified measurements among them. RESULTS LCL & Popliteus: On the femur, the popliteus origin lay consistently deep to the LCL and inserted both distally and anteriorly to the LCL, a mean distance of 4.6 mm (range 1.9-7.6; standard deviation 2.0). From the joint line, the LCL lay a mean distance of 12.5 mm proximally while the popliteus measured a mean of 8.2 mm. Both were consistently distal to the physis. The LCL was a mean distance of 4.4 mm (range 1.0-9.5) and the popliteus was a mean distance of 8.2 (range 1.7-12.5) from the physis. ITB insertion: The ITB insertion at Gerdy's tubercle had an average footprint measuring 28.2 mm2 (range 10.3-58.4) and the ITB centre lay proximal to the physis in 6 specimens (mean age 4.2 years, median 2.5 years) and distal in 3 specimens (mean age 1.5 years, median 4 months). Mean distance from the footprint centre to the physis was 1.6 mm proximal (range 7.1 proximal - 2.2 distal). CONCLUSION This study describes relative and quantitative positions of the femoral LCL and popliteus origins and tibial ITB attachment and their respective physeal relationships. Knowledge of paediatric anterolateral knee anatomy will help guide essential future research and procedures providing extra-articular anterolateral rotatory stabilisation and may help reduce iatrogenic physeal injury risk. LEVEL OF EVIDENCE N/A (descriptive anatomic study).
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Affiliation(s)
- Sahej Randhawa
- Lucile Packard Children's Hospital, Stanford University School of Medicine, 725 Welch Road, Palo Alto, CA 94304, USA; UC San Diego School of Medicine, 9500 Gilman Dr, La Jolla, CA 92092, USA
| | - Tyler J Stavinoha
- Lucile Packard Children's Hospital, Stanford University School of Medicine, 725 Welch Road, Palo Alto, CA 94304, USA
| | - Sunny Trivedi
- Lucile Packard Children's Hospital, Stanford University School of Medicine, 725 Welch Road, Palo Alto, CA 94304, USA; University of Florida College of Medicine, 1600 SW Archer Rd, Gainesville, FL 32610, USA
| | - Theodore J Ganley
- The Children's Hospital of Philadelphia, 3401 Civic Center Blvd, Philadelphia, PA 19104, USA
| | - Marc Tompkins
- University of Minnesota, 2450 Riverside Ave., Minneapolis, MN 55455, USA
| | - Henry Ellis
- Texas Scottish Rite Hospital for Children, 2222 Welborn St, Dallas, TX 75219, USA
| | - Phil Wilson
- Texas Scottish Rite Hospital for Children, 2222 Welborn St, Dallas, TX 75219, USA
| | - Daniel W Green
- Hospital for Special Surgery, 535 E 70th St, New York, NY 10021, USA
| | - Peter D Fabricant
- Hospital for Special Surgery, 535 E 70th St, New York, NY 10021, USA
| | - Volker Musahl
- University of Pittsburgh, UPMC Freddie Fu Sports Medicine Center, Dept of Orthopedics, 3200 S. Water St, PA 15203, USA
| | - Kevin G Shea
- Lucile Packard Children's Hospital, Stanford University School of Medicine, 725 Welch Road, Palo Alto, CA 94304, USA.
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12
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Sabatini L, Capella M, Vezza D, Barberis L, Camazzola D, Risitano S, Drocco L, Massè A. Anterolateral complex of the knee: State of the art. World J Orthop 2022; 13:679-692. [PMID: 36159618 PMCID: PMC9453282 DOI: 10.5312/wjo.v13.i8.679] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/28/2021] [Revised: 03/07/2022] [Accepted: 07/25/2022] [Indexed: 02/06/2023] Open
Abstract
Rotatory instability of the knee represents the main reason for failure and poor clinical outcomes regarding anterior cruciate ligament (ACL) reconstruction techniques. It is now clear that the anterolateral complex (ALC) of the knee possesses a fundamental role, in association with the ACL, in controlling internal rotation. Over the past decade, ever since the anterolateral ligament has been identified and described as a distinct structure, there has been a renewed interest in the scientific community about the whole ALC: Lateral extra-articular tenodesis have made a comeback in association with ACL reconstructions to improve functional outcomes, reducing the risks of graft failure and associated injuries. Modern ACL reconstruction surgery must therefore investigate residual instability and proceed, when necessary, to extra-articular techniques, whether functional tenodesis or anatomical reconstruction.This review aims to investigate the latest anatomical and histological descriptions, and the role in rotational control and knee biomechanics of the ALC and its components. The diagnostic tools for its identification, different reconstruction techniques, and possible surgical indications are described.. In addition, clinical and functional results available in the literature are reported.
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Affiliation(s)
- Luigi Sabatini
- Department of Orthopaedics and Traumatology, Università degli Studi di Torino, Torino 10126, Italy
| | - Marcello Capella
- Department of Orthopaedics and Traumatology, Università degli Studi di Torino, Torino 10126, Italy
| | - Daniele Vezza
- Department of Orthopaedics and Traumatology, Università degli Studi di Torino, Torino 10126, Italy
| | - Luca Barberis
- Department of Orthopaedics and Traumatology, Università degli Studi di Torino, Torino 10126, Italy
| | - Daniele Camazzola
- Department of Orthopaedics and Traumatology, Università degli Studi di Torino, Torino 10126, Italy
| | - Salvatore Risitano
- Department of Orthopaedics and Traumatology, Università degli Studi di Torino, Torino 10126, Italy
| | - Luca Drocco
- Department of Orthopaedics and Traumatology, Università degli Studi di Torino, Torino 10126, Italy
| | - Alessandro Massè
- Department of Orthopaedics and Traumatology, Università degli Studi di Torino, Torino 10126, Italy
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13
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Marshall DC, Silva FD, Goldenberg BT, Quintero D, Baraga MG, Jose J. Imaging Findings of Complications After Lateral Extra-Articular Tenodesis of the Knee: A Current Concepts Review. Orthop J Sports Med 2022; 10:23259671221114820. [PMID: 36062159 PMCID: PMC9434692 DOI: 10.1177/23259671221114820] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/11/2022] [Accepted: 05/11/2022] [Indexed: 11/16/2022] Open
Abstract
Background: Despite successful anterior cruciate ligament (ACL) reconstruction, many
patients continue to experience persistent anterolateral rotatory
instability. Lateral extra-articular tenodesis (LET) is used to address this
instability by harvesting a portion of the iliotibial band, passing it
underneath the fibular collateral ligament, and attaching it just proximal
and posterior to the lateral femoral epicondyle. Based on the most recent
clinical evidence, the addition of LET to ACL reconstruction improves
clinical outcomes, which has led to an increase in the use of this
technique. Purpose: To provide an overview of the postoperative complications of the LET
procedure and their associated imaging findings, with a focus on magnetic
resonance imaging (MRI). Study Design: Narrative review. Methods: In this scoping review, the authors reviewed available radiographic, computed
tomography, and MRI scans of patients who experienced postoperative
complications after ACL reconstruction with LET, in which the complication
was determined to be from the LET procedure. Images were reviewed and
subsequently described by an on-staff musculoskeletal radiologist. Results: The authors found 9 different complications associated with LET: graft
failure, hematoma, infection, chronic pain, tunnel convergence, fixation
device migration, muscular hernia, peroneal nerve palsy, and knee stiffness.
They supplemented these findings with radiographic evidence from 6
patients. Conclusion: As extra-articular reconstruction techniques including LET become more
popular among orthopaedic surgeons, it is important that radiologists and
surgeons be adept at recognizing the normal imaging findings of LET and
associated complications.
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Affiliation(s)
- Danielle C Marshall
- Department of Orthopaedics, University of Miami/Jackson Memorial Hospital, Miami, Florida, USA
| | - Flavio D Silva
- Department of Radiology, Grupo Osteomuscular, Fleury Medicine e Saúde, São Paulo, Brazil
| | - Brandon T Goldenberg
- Department of Orthopaedics, University of Miami/Jackson Memorial Hospital, Miami, Florida, USA
| | - Daniel Quintero
- Department of Orthopaedics, University of Miami/Jackson Memorial Hospital, Miami, Florida, USA.,Department of Radiology, University of Miami/Jackson Memorial Hospital, Miami, Florida, USA
| | - Michael G Baraga
- Department of Orthopaedics, University of Miami/Jackson Memorial Hospital, Miami, Florida, USA
| | - Jean Jose
- Department of Radiology, University of Miami/Jackson Memorial Hospital, Miami, Florida, USA
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14
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Onggo JR, Rasaratnam HK, Nambiar M, Onggo JD, Pai V, Damasena I, Riazi A, Babazadeh S. Anterior Cruciate Ligament Reconstruction Alone Versus With Lateral Extra-articular Tenodesis With Minimum 2-Year Follow-up: A Meta-analysis and Systematic Review of Randomized Controlled Trials. Am J Sports Med 2022; 50:1137-1145. [PMID: 33886399 DOI: 10.1177/03635465211004946] [Citation(s) in RCA: 23] [Impact Index Per Article: 11.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
BACKGROUND Lateral extra-articular tenodesis (LEAT) aims to improve anterolateral stability of the injured knee during anterior cruciate ligament reconstruction (ACLR) surgery. Inconclusive evidence surrounding the efficacy and safety of LEAT has propelled clinical interest and ongoing discussions. PURPOSE To establish level 1 evidence by assessing randomized controlled trials (RCTs) with minimum 2-year follow-up that directly compared ACLR with LEAT (LEAT group) and ACLR alone (non-LEAT group) in terms of clinical outcomes and complications. STUDY DESIGN Meta-analysis and systematic review; Level of evidence, 1. METHODS Meta-analysis was performed with a multidatabase search (Cochrane, EMBASE, OVID Medline, PubMed, and Web of Science) according to PRISMA (Preferred Reporting Items for Systematic Reviews and Meta-Analyses) guidelines on September 9, 2020. Data from published RCTs meeting inclusion criteria were extracted and analyzed with an inverse variance statistical model. RESULTS A total of 7 RCTs were included, consisting of 517 LEAT and 589 non-LEAT patients. Only autografts were used for ACLR and LEAT. A variety of LEAT techniques and autograft fixation methods were used. We found improved stability (residual positive pivot shift: risk ratio [RR], 0.59; 95% CI, 0.39-0.88; P = .01) and better clinical outcomes (International Knee Documentation Committee [IKDC] score: mean difference [MD], 2.31; 95% CI, 0.54-4.09; P = .01; and Lysholm score: MD, 2.71; 95% CI, 0.68-4.75; P = .009) in the LEAT than non-LEAT group. Graft rerupture rate was 3 times less likely (RR, 0.31; 95% CI, 0.17-0.58; P < .001) in the LEAT group than the non-LEAT group. CONCLUSION Good-quality evidence is available to support the efficacy of LEAT in improving anterolateral knee stability and reducing graft reruptures in primary ACLR. LEAT should be considered in patients with high risk factors. Although Lysholm and IKDC scores were statistically better in the LEAT group, these are unlikely to be clinically significant. Future studies should aim to identify patient populations that would best benefit from LEAT with ACLR.
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Affiliation(s)
- James Randolph Onggo
- Department of Orthopaedic Surgery, Box Hill Hospital, Melbourne, Victoria, Australia.,Faculty of Medicine, Nursing and Health Sciences, Monash University, Clayton, Victoria, Australia
| | | | - Mithun Nambiar
- Department of Orthopaedic Surgery, Box Hill Hospital, Melbourne, Victoria, Australia.,Faculty of Medicine, Nursing and Health Sciences, Monash University, Clayton, Victoria, Australia
| | - Jason Derry Onggo
- Department of Orthopaedic Surgery, Box Hill Hospital, Melbourne, Victoria, Australia
| | - Vishal Pai
- Department of Orthopaedic Surgery, Box Hill Hospital, Melbourne, Victoria, Australia
| | - Iswadi Damasena
- Department of Orthopaedic Surgery, Box Hill Hospital, Melbourne, Victoria, Australia
| | - Arash Riazi
- Department of Orthopaedic Surgery, Box Hill Hospital, Melbourne, Victoria, Australia
| | - Sina Babazadeh
- Department of Orthopaedic Surgery, Box Hill Hospital, Melbourne, Victoria, Australia
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15
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Kumahara R, Kimura Y, Sasaki S, Sasaki E, Maeda S, Tsukada H, Yamamoto Y, Tsuda E, Ishibashi Y. Prevalence of Segond fractures associated with anterior cruciate ligament injuries and their influence on knee joint stability; A case-control study. BMC Musculoskelet Disord 2022; 23:180. [PMID: 35209895 PMCID: PMC8876750 DOI: 10.1186/s12891-022-05127-w] [Citation(s) in RCA: 4] [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: 07/22/2021] [Accepted: 02/17/2022] [Indexed: 01/24/2023] Open
Abstract
Background The purpose of this study was to determine the prevalence of Segond fractures and to compare knee stability between patients undergoing primary anterior cruciate ligament (ACL) reconstruction with and without Segond fractures pre- and postoperatively. Methods A total of 712 patients who underwent primary ACL reconstruction between 2014 and 2019. Exclusion criteria included patients with multi-ligament knee injuries, skeletally immature patients, osteoarthritis in the knee, combined surgery of high tibial osteotomy, lack of data, and loss to follow-up for at least 2 years. Segond fractures were confirmed using plain radiography, computed tomography (CT), and magnetic resonance imaging (MRI). Patients with Segond fractures were classified into Group S and without Segond fractures into Group N. Pre- and postoperative Lachman grades, pivot-shift grades, and assessment of side-to-side differences in anterior stability were evaluated. Results Five hundred and forty patients included in this study. There were 22 patients with Segond fractures. Of these, all 22 cases (4.1%) were identified on CT, but only 20 cases (3.7%) were identified on MRI and 18 cases (3.3%) on plain radiographs. There was no significant difference in preoperative Lachman grade or pivot-shift grade between Groups S and N (p = 0.662, p = 0.677, respectively). There was no significant difference in postoperative Lachman grade or pivot-shift grade between Groups S and N (p = 0.685, p = 0.390, respectively). There were no significant differences in preoperative (p = 0.398) or postoperative (p = 0.546) side-to-side differences of anterior stability between Groups S and N. Conclusions Segond fractures were confirmed in 4.1% of the cases on CT scans among patients undergoing primary ACL reconstruction. Segond fractures did not affect preoperative or 2-year follow-up evaluations of knee stability. From these results, we concluded that Segond fractures did not affect the clinical outcomes of the primary ACL reconstruction and that it may not be necessary to treat Segond fractures.
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Affiliation(s)
- Ryotaro Kumahara
- Department of Orthopaedic Surgery, Hirosaki University Graduate School of Medicine, 5 Zaifu-cho, Hirosaki, 036-8562, Japan.
| | - Yuka Kimura
- Department of Orthopaedic Surgery, Hirosaki University Graduate School of Medicine, 5 Zaifu-cho, Hirosaki, 036-8562, Japan
| | - Shizuka Sasaki
- Department of Orthopaedic Surgery, Hirosaki University Graduate School of Medicine, 5 Zaifu-cho, Hirosaki, 036-8562, Japan
| | - Eiji Sasaki
- Department of Orthopaedic Surgery, Hirosaki University Graduate School of Medicine, 5 Zaifu-cho, Hirosaki, 036-8562, Japan
| | - Shugo Maeda
- Department of Orthopaedic Surgery, Aomori Rosai Hospital, Hachinohe, Japan
| | - Harehiko Tsukada
- Department of Orthopaedic Surgery, Aomori City Hospital, Aomori, Japan
| | - Yuji Yamamoto
- Department of Orthopaedic Surgery, Hirosaki University Graduate School of Medicine, 5 Zaifu-cho, Hirosaki, 036-8562, Japan
| | - Eiichi Tsuda
- Department of Rehabilitation Medicine, Hirosaki University Graduate School of Medicine, Hirosaki, Japan
| | - Yasuyuki Ishibashi
- Department of Orthopaedic Surgery, Hirosaki University Graduate School of Medicine, 5 Zaifu-cho, Hirosaki, 036-8562, Japan
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16
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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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17
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Chiba D, Gale T, Nishida K, Suntaxi F, Lesniak BP, Fu FH, Anderst W, Musahl V. Lateral Extra-articular Tenodesis Contributes Little to Change In Vivo Kinematics After Anterior Cruciate Ligament Reconstruction: A Randomized Controlled Trial. Am J Sports Med 2021; 49:1803-1812. [PMID: 33872056 DOI: 10.1177/03635465211003298] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
BACKGROUND Lateral extra-articular tenodesis (LET) in combination with anterior cruciate ligament (ACL) reconstruction (ACLR) has been proposed to improve residual rotatory knee instability in patients having ACL deficiency. PURPOSE/HYPOTHESIS The purpose was to compare the effects of isolated ACLR (iACLR) versus LET in combination with ACLR (ACLR+LET) on in vivo kinematics during downhill running. It was hypothesized that ACLR+LET would reduce the internal rotation of the reconstructed knee in comparison with iACLR. STUDY DESIGN Controlled laboratory study. METHODS A total of 18 patients with ACL deficiency were included. All participants were randomly assigned to receive ACLR+ LET or iACLR during surgery. Six months and 12 months after surgery, knee joint motion during downhill running was measured using dynamic biplane radiography and a validated registration process that matched patient-specific 3-dimensional bone models to synchronized biplane radiographs. Anterior tibial translation (ATT; positive value means "anterior translation") and tibial rotation (TR) relative to the femur were calculated for both knees. The side-to-side differences (SSDs) in kinematics were also calculated (operated knee-contralateral healthy knee). The SSD value was compared between ACLR+LET and iACLR groups using a Mann-Whitney U test. RESULTS At 6 months after surgery, the SSD of ATT in patients who had undergone ACLR+LET (-1.9 ± 2.0 mm) was significantly greater than that in patients who had undergone iACLR (0.9 ± 2.3 mm) at 0% of the gait cycle (foot strike) (P = .031). There was no difference in ATT 12 months after surgery. Regarding TR, there were no differences between ACLR+LET and iACLR at either 6 months (P value range, .161-.605) or 12 months (P value range, .083-.279) after surgery. CONCLUSION LET in combination with ACLR significantly reduced ATT at the instant of foot strike during downhill running at 6 months after surgery. However, this effect was not significant at 12 months after surgery. The addition of LET to ACLR had no effect on TR at both 6 and 12 months after surgery. CLINICAL RELEVANCE LET in combination with ACLR may stabilize sagittal knee motion during downhill running in the early postoperation phase, but according to this study, it has no effect on 12-month in vivo kinematics. REGISTRATION NCT02913404 (ClinicalTrials.gov identifier).
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Affiliation(s)
- Daisuke Chiba
- UPMC Freddie Fu Sports Medicine Center, Department of Orthopaedic Surgery, University of Pittsburgh, Pittsburgh, Pennsylvania, USA.,Department of Orthopaedic Surgery, Hirosaki University Graduate School of Medicine, Hirosaki, Aomori, Japan.,Biodynamics Laboratory, University of Pittsburgh, Pittsburgh, Pennsylvania, USA
| | - Tom Gale
- Biodynamics Laboratory, University of Pittsburgh, Pittsburgh, Pennsylvania, USA
| | - Kyohei Nishida
- UPMC Freddie Fu Sports Medicine Center, Department of Orthopaedic Surgery, University of Pittsburgh, Pittsburgh, Pennsylvania, USA.,Biodynamics Laboratory, University of Pittsburgh, Pittsburgh, Pennsylvania, USA.,Department of Orthopaedic Surgery, Kobe University Graduate School of Medicine, Kobe, Hyogo, Japan
| | - Felipe Suntaxi
- Biodynamics Laboratory, University of Pittsburgh, Pittsburgh, Pennsylvania, USA
| | - Bryson P Lesniak
- UPMC Freddie Fu Sports Medicine Center, Department of Orthopaedic Surgery, University of Pittsburgh, Pittsburgh, Pennsylvania, USA
| | - Freddie H Fu
- UPMC Freddie Fu Sports Medicine Center, Department of Orthopaedic Surgery, University of Pittsburgh, Pittsburgh, Pennsylvania, USA
| | - William Anderst
- Biodynamics Laboratory, University of Pittsburgh, Pittsburgh, Pennsylvania, USA
| | - Volker Musahl
- UPMC Freddie Fu Sports Medicine Center, Department of Orthopaedic Surgery, University of Pittsburgh, Pittsburgh, Pennsylvania, USA
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18
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Anterolateral Rotatory Laxity: What is it, When to Address it, and How? OPER TECHN SPORT MED 2021. [DOI: 10.1016/j.otsm.2021.150831] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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19
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Lucidi GA, Grassi A, Di Paolo S, Agostinone P, Neri MP, Macchiarola L, Dal Fabbro G, Zaffagnini S. The Lateral Femoral Notch Sign Is Correlated With Increased Rotatory Laxity After Anterior Cruciate Ligament Injury: Pivot Shift Quantification With A Surgical Navigation System. Am J Sports Med 2021; 49:649-655. [PMID: 33449808 DOI: 10.1177/0363546520982002] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
BACKGROUND The lateral femoral notch sign (LNS) is a bony impression on the lateral femoral condyle correlated with anterior cruciate ligament (ACL) injury. Its presence is associated with lateral meniscal injury and higher cartilage degradation on the lateral femoral condyle. PURPOSE/HYPOTHESIS The purpose was to investigate the effect of the presence and magnitude of LNS on rotatory instability. The hypothesis was that a positive LNS is correlated with a high-grade pivot shift (PS). STUDY DESIGN Cross-sectional study; Level of evidence, 3. METHODS A total of 90 consecutive patients with complete ACL tears between 2013 and 2017 underwent intraoperative kinematic evaluation with the surgical navigation system and were included in the present study. The same surgeon performed a standardized PS under anesthesia. The PS was quantified through the acceleration of the lateral compartment during tibial reduction (PS ACC) and the internal-external rotation (PS IE). Presence and depth of LNS were evaluated on sagittal magnetic resonance images (1.5-T). RESULTS In 47 patients, the LNS was absent; in 33, the LNS depth was between 1 mm and 2 mm; and in 10 patients, it was deeper than 2 mm. Patients with a notch deeper than 2 mm showed increased PS ACC and PS IE compared with the group without the LNS. However, no significant differences were present between the group with a notch between 1 and 2 mm and the patients without LNS. Receiver operating characteristic curve analysis showed that 2 mm was the most predictive cutoff value to identify the "high-grade rotatory instability" group, with an accuracy of 77.8% and 74.4% and a specificity of 95.5% and 93.9% referred to the PS ACC and PS IE, respectively. CONCLUSION The presence of a lateral LNS deeper than 2 mm could be used for the preoperative identification of patients with a high risk of increased rotatory instability.
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Affiliation(s)
- Gian Andrea Lucidi
- IIa Clinica Ortopedica e Traumatologica, IRCCS Istituto Ortopedico Rizzoli, Bologna, Italy
| | - Alberto Grassi
- IIa Clinica Ortopedica e Traumatologica, IRCCS Istituto Ortopedico Rizzoli, Bologna, Italy
| | - Stefano Di Paolo
- IIa Clinica Ortopedica e Traumatologica, IRCCS Istituto Ortopedico Rizzoli, Bologna, Italy
| | - Piero Agostinone
- IIa Clinica Ortopedica e Traumatologica, IRCCS Istituto Ortopedico Rizzoli, Bologna, Italy
| | - Maria Pia Neri
- IIa Clinica Ortopedica e Traumatologica, IRCCS Istituto Ortopedico Rizzoli, Bologna, Italy
| | - Luca Macchiarola
- IIa Clinica Ortopedica e Traumatologica, IRCCS Istituto Ortopedico Rizzoli, Bologna, Italy
| | - Giacomo Dal Fabbro
- IIa Clinica Ortopedica e Traumatologica, IRCCS Istituto Ortopedico Rizzoli, Bologna, Italy
| | - Stefano Zaffagnini
- IIa Clinica Ortopedica e Traumatologica, IRCCS Istituto Ortopedico Rizzoli, Bologna, Italy
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20
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Robert H, Vincent JP. Combined Anterior and Anterolateral Stabilization of the Knee With the Hamstring Tendons. Arthrosc Tech 2021; 10:e275-e282. [PMID: 33680756 PMCID: PMC7917012 DOI: 10.1016/j.eats.2020.10.003] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/15/2020] [Accepted: 10/04/2020] [Indexed: 02/03/2023] Open
Abstract
Anterior cruciate ligament reconstruction allows good control of sagittal laxity but insufficient rotary laxity control. Our objective is to describe an original lateral extra-articular tenodesis using gracilis in addition to an intra-articular reconstruction using the semitendinosus in a short 4-strand graft. The principles are as follows: The femoral tunnel for intra-articular and extra-articular reconstruction is unique, the femoral attachment is posterior and proximal to the lateral epicondyle, the graft is under the lateral collateral ligament, and the tibial insertion is isometric from 0° to 60° between the Gerdy tubercle and the fibular head.
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Affiliation(s)
- Henri Robert
- Orthopedic Surgery Unit, Haut-Anjou Hospital, Château-Gontier, France,Address correspondence to Henri Robert, M.D., Orthopedic Surgery Unit, Haut-Anjou Hospital, 1 quai Dr. Lefevre, 53200, Château-Gontier, France.
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21
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Sinha S, Singh L, Kumar I, Verma A, Saraf S, Singh T, Pandey S. Efficacy of lateral extra-articular tenodesis on anterior cruciate ligament reconstruction with quadrupled hamstring graft: Magnetic resonance imaging evidence and clinical follow-up. JOURNAL OF ORTHOPAEDIC DISEASES AND TRAUMATOLOGY 2021. [DOI: 10.4103/jodp.jodp_17_21] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
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22
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Cavaignac E, Mesnier T, Marot V, Fernandez A, Faruch M, Berard E, Sonnery-Cottet B. Effect of Lateral Extra-articular Tenodesis on Anterior Cruciate Ligament Graft Incorporation. Orthop J Sports Med 2020; 8:2325967120960097. [PMID: 33299900 PMCID: PMC7711232 DOI: 10.1177/2325967120960097] [Citation(s) in RCA: 28] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/09/2020] [Accepted: 07/30/2020] [Indexed: 12/28/2022] Open
Abstract
Background: It has been shown that adding lateral extra-articular tenodesis (LET) to
standard anterior cruciate ligament (ACL) reconstruction significantly
decreases the loads on the ACL composite graft. To date, the possible effect
of LET on ACL graft incorporation is not known. Purpose: To compare the incorporation in tibial bone tunnels of a standard quadrupled
semitendinosus (ST4) graft to an ST4 graft plus LET at 1 year
postoperatively using magnetic resonance imaging (MRI). Study Design: Cohort study; Level of evidence, 3. Methods: A total of 62 patients who underwent ACL reconstruction were enrolled
prospectively: 31 received an ST4 graft, and 31 received an ST4 graft plus
LET. Graft incorporation was evaluated with MRI at the 1-year follow-up
visit. The following parameters were evaluated: signal-to-noise quotient
(SNQ), tibial tunnel widening, graft healing, and graft maturity according
to the Howell scale. The primary endpoint was the SNQ of the ST4 graft at 1
year postoperatively; this parameter was adjusted because of unequal
baseline characteristics between groups. Clinical and functional outcomes as
well as incorporation of the graft were analyzed as secondary endpoints. Results: The mean adjusted SNQ was 0.5 ± 2.1 (95% CI, 0.4-4.6) in the ST4 + LET group
and 5.9 ± 3.7 (95% CI, 4.7-7.0) in the ST4 group (P =
.0297). The mean tibial tunnel widening was 73.7% ± 42.2% in the ST4 + LET
group versus 77.5% ± 46.7% in the ST4 group (P = .5685).
Howell grade I, indicative of better graft maturity, was statistically more
frequent in the ST4 + LET group (P = .0379). No
statistically significant difference was seen between groups in terms of
graft healing (P = .1663). The Lysholm score was
statistically higher in the ST4 + LET group (P = .0058). No
significant differences were found between groups in terms of the
International Knee Documentation Committee subjective score
(P = .2683) or Tegner score (P =
.7428). The mean SNQ of the LET graft at the 1-year follow-up visit was 2.6
± 4.9. Conclusion: At 1 year postoperatively, the MRI appearance of ACL grafts showed generally
better incorporation and maturation when combined with LET.
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Affiliation(s)
- Etienne Cavaignac
- Department of Orthopedic Surgery and Trauma, Hôpital Pierre-Paul Riquet, Centre Hospitalier Universitaire de Toulouse, Toulouse, France.,I2R, Institut de Recherche Riquet, Toulouse, France
| | - Timothée Mesnier
- Department of Orthopedic Surgery and Trauma, Hôpital Pierre-Paul Riquet, Centre Hospitalier Universitaire de Toulouse, Toulouse, France
| | - Vincent Marot
- Department of Orthopedic Surgery and Trauma, Hôpital Pierre-Paul Riquet, Centre Hospitalier Universitaire de Toulouse, Toulouse, France
| | - Andrea Fernandez
- Department of Orthopedic Surgery and Trauma, Hôpital Pierre-Paul Riquet, Centre Hospitalier Universitaire de Toulouse, Toulouse, France
| | - Marie Faruch
- Department of Radiology, Hôpital Pierre-Paul Riquet, Centre Hospitalier Universitaire de Toulouse, Toulouse, France
| | - Emilie Berard
- Department of Epidemiology, Health Economics and Public Health, Centre Hospitalier Universitaire de Toulouse, University of Toulouse III, Toulouse, France
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Marom N, Ouanezar H, Jahandar H, Zayyad ZA, Fraychineaud T, Hurwit D, Imhauser CW, Wickiewicz TL, Pearle AD, Nawabi DH. Lateral Extra-articular Tenodesis Reduces Anterior Cruciate Ligament Graft Force and Anterior Tibial Translation in Response to Applied Pivoting and Anterior Drawer Loads. Am J Sports Med 2020; 48:3183-3193. [PMID: 33017168 DOI: 10.1177/0363546520959322] [Citation(s) in RCA: 53] [Impact Index Per Article: 13.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
BACKGROUND The biomechanical effect of lateral extra-articular tenodesis (LET) performed in conjunction with anterior cruciate ligament (ACL) reconstruction (ACLR) on load sharing between the ACL graft and the LET and on knee kinematics is not clear. PURPOSE/HYPOTHESIS The purpose was to quantify the effect of LET on (1) forces carried by both the ACL graft and the LET and (2) tibiofemoral kinematics in response to simulated pivot shift and anterior laxity tests. We hypothesized that LET would decrease forces carried by the ACL graft and anterior tibial translation (ATT) in response to simulated pivoting maneuvers and during simulated tests of anterior laxity. STUDY DESIGN Controlled laboratory study. METHODS Seven cadaveric knees (mean age, 39 ± 12 years [range, 28-54 years]; 4 male) were mounted to a robotic manipulator. The robot simulated clinical pivoting maneuvers and tests of anterior laxity: namely, the Lachman and anterior drawer tests. Each knee was assessed in the following states: ACL intact, ACL sectioned, ACL reconstructed (using a bone-patellar tendon-bone autograft), and after performing LET (the modified Lemaire technique after sectioning of the anterolateral ligament and Kaplan fibers). Resultant forces carried by the ACL graft and LET at the peak applied loads were determined via superposition. ATT was determined in response to the applied loads. RESULTS With the applied pivoting loads, performing LET decreased ACL graft force up to 80% (44 ± 12 N; P < .001) and decreased ATT of the lateral compartment compared with that of the intact knee up to 7.6 ± 2.9 mm (P < .001). The LET carried up to 91% of the force generated in the ACL graft during isolated ACLR (without LET). For simulated tests of anterior laxity, performing LET decreased ACL graft force by 70% (40 ± 20 N; P = .001) for the anterior drawer test with no significant difference detected for the Lachman test. No differences in ATT were deteced between ACLR with LET and the intact knee on both the Lachman and the anterior drawer tests (P = .409). LET reduced ATT compared with isolated ACLR on the simulated anterior drawer test by 2.4 ± 1.8 mm (P = .032) but not on the simulated Lachman test. CONCLUSION In a cadaveric model, LET in combination with ACLR transferred loads from the ACL graft to the LET and reduced ATT with applied pivoting loads and during the simulated anterior drawer test. The effect of LET on ACL graft force and ATT was less pronounced on the simulated Lachman test. CLINICAL RELEVANCE LET in addition to ACLR may be a suitable option to offload the ACL graft and to reduce ATT in the lateral compartment to magnitudes less than that of the intact knee with clinical pivoting maneuvers. In contrast, LET did not offload the ACL graft or add to the anterior restraint provided by the ACL graft during the Lachman test.
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Affiliation(s)
- Niv Marom
- Sports Medicine Institute, Hospital for Special Surgery, New York, New York, USA
| | - Hervé Ouanezar
- Sports Medicine Institute, Hospital for Special Surgery, New York, New York, USA
| | - Hamidreza Jahandar
- Department of Biomechanics, Hospital for Special Surgery, New York, New York, USA
| | - Zaid A Zayyad
- Department of Biomechanics, Hospital for Special Surgery, New York, New York, USA
| | - Thomas Fraychineaud
- Department of Biomechanics, Hospital for Special Surgery, New York, New York, USA
| | - Daniel Hurwit
- 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
| | - Thomas L Wickiewicz
- Sports Medicine Institute, 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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24
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25
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Abstract
The pivot shift test is utilized for assessment of rotatory instability in the anterior cruciate ligament (ACL) deficient knee. There are multiple reports of the pivot shift maneuver, and there is a lack of consensus among clinicians as to a standardized maneuver. Measurement devices are a feasible option to evaluate rotatory knee instability, objectively or quantitatively. Traditionally, measurement systems have been invasive systems. More recently, electromagnetic system, inertial sensor, or imaging analysis systems, specifically with the utilization of a tablet computer, have emerged as noninvasive, and more importantly, validated options. It is important to recognize that anatomic structures other than the ACL contribute to rotatory knee stability. Addressing the tibial slope, anterolateral structures of the knee, specifically the iliotibial band, and menisci during ACL surgery may decrease residual pivot shift in an attempt to improve clinical outcomes and prevent reinjury. This review article describes the pivot shift maneuver, objective measurement tools, and clinical applications of the pivot shift test.
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26
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Kaibara T, Kondo E, Matsuoka M, Iwasaki K, Onodera T, Momma D, Seito N, Mikami S, Iwasaki N. Large osteochondral defect in the lateral femoral condyle reconstructed by Atelocollagen-associated autologous chondrocyte implantation combined with anterior cruciate ligament reconstruction. BMC Musculoskelet Disord 2020; 21:494. [PMID: 32718337 PMCID: PMC7385883 DOI: 10.1186/s12891-020-03531-8] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/13/2020] [Accepted: 07/21/2020] [Indexed: 01/10/2023] Open
Abstract
BACKGROUND Articular surface damage commonly associated with rupture of the anterior cruciate ligament (ACL). Large osteochondral defect, which consists of a severe depression fracture and a large cartilage defect, need to be treated due to deformation of the articular surface as it can impact the clinical outcome of ACL reconstruction. Although autologous chondrocyte implantation is one of the useful options in such cases, it can be questioned whether the reconstruction of the ACL and osteochondral defect should be performed in one procedure alone. CASE PRESENTATION We report a case of a 38-year-old male with a deep depression fracture extending to the edge of the lateral femoral condyle associated with ACL injury after twisting his right knee while skiing. The patient was successfully treated with tissue-engineered cartilage transplantation covered by the periosteum with an iliac bone graft combined with anatomic double-bundle ACL reconstruction. Histopathological examination of the transplanted cartilage taken at second-look arthroscopy showed a cartilage-like tissue in the middle to deep zone in which the extracellular matrix was largely stained with Safranin O. The patient was able to return to his previous level of skiing activity without any experience of knee pain. Magnetic resonance imaging at 4 years after surgery showed that the graft integrated to the border zone and subchondral bone. The operated knee showed negative Lachman test and had a full range of motion. CONCLUSIONS To our knowledge, this is the first report of anatomic double-bundle ACL reconstruction with tissue-engineered cartilage transplantation and an iliac bone graft to restore the lateral edge of the femoral condyle.
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Affiliation(s)
- Takuma Kaibara
- Department of Orthopaedic Surgery, Hokkaido University Graduate School of Medicine, Kita-15, Nish-7, Kita-ku, Sapporo, Hokkaido, 060-8638, Japan
| | - Eiji Kondo
- Center for Sports Medicine, Hokkaido University Hospital, Kita-15, Nish-7, Kita-ku, Sapporo, Hokkaido, 060-8638, Japan.
| | - Masatake Matsuoka
- Department of Orthopaedic Surgery, Hokkaido University Graduate School of Medicine, Kita-15, Nish-7, Kita-ku, Sapporo, Hokkaido, 060-8638, Japan
| | - Koji Iwasaki
- Department of functional reconstruction for the knee joint, Hokkaido University, Kita-15, Nish-7, Kita-ku, Sapporo, Hokkaido, 060-8638, Japan
| | - Tomohiro Onodera
- Department of Orthopaedic Surgery, Hokkaido University Graduate School of Medicine, Kita-15, Nish-7, Kita-ku, Sapporo, Hokkaido, 060-8638, Japan
| | - Daisuke Momma
- Center for Sports Medicine, Hokkaido University Hospital, Kita-15, Nish-7, Kita-ku, Sapporo, Hokkaido, 060-8638, Japan
| | - Naoki Seito
- Department of Orthopaedic Surgery, Hokkaido University Graduate School of Medicine, Kita-15, Nish-7, Kita-ku, Sapporo, Hokkaido, 060-8638, Japan
| | - Susumu Mikami
- Department of Orthopaedic Surgery, Hokkaido Orthopaedic Memorial Hospital, 5-22, 7-Jo 13-Chome, Hiragishi, Toyohira-ku, Sapporo, Hokkaido, 062-0937, Japan
| | - Norimasa Iwasaki
- Department of Orthopaedic Surgery, Hokkaido University Graduate School of Medicine, Kita-15, Nish-7, Kita-ku, Sapporo, Hokkaido, 060-8638, Japan
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27
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Novaretti JV, Arner JW, Chan CK, Polamalu S, Harner CD, Debski RE, Lesniak BP. Does Lateral Extra-articular Tenodesis of the Knee Affect Anterior Cruciate Ligament Graft In Situ Forces and Tibiofemoral Contact Pressures? Arthroscopy 2020; 36:1365-1373. [PMID: 32057987 DOI: 10.1016/j.arthro.2020.01.051] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/17/2019] [Revised: 01/17/2020] [Accepted: 01/19/2020] [Indexed: 02/02/2023]
Abstract
PURPOSE To quantify the effects of lateral extra-articular tenodesis (LET) on tibiofemoral compartment contact area and pressures, knee kinematics, and forces. METHODS Nine cadaveric knees were tested using a robotic testing system. Two loading conditions, (1) anterior tibial translational load coupled with axial compression and (2) internal tibial torque coupled with axial compression, were applied for each knee state at full extension and 30°, 60°, and 90° of knee flexion. Kinematic data was recorded for 3 knee states: anterolateral capsule (ALC) competent, ALC deficient, and post-LET using a 6-mm semitendinosus graft. In situ force in the anterior cruciate ligament (ACL) was quantified using the principle of superposition by comparing the change in force measured before and after the removal of the ALC. Contact area and pressures in each tibiofemoral compartment were measured by replaying kinematics after soft tissues were removed and pressure sensors were inserted. RESULTS In response to an anterior tibial translational load, mean contact area in the medial compartment decreased by 33.1% from the ALC-competent to post-LET knee states at 90° of knee flexion (P = .042). No significant differences in lateral compartment contact pressure were found between knee states. In situ force in the ACL in response to an anterior tibial translational load decreased by 43.4% and 50% from the ALC-deficient to post-LET knee states at 60° (P = .02) and 90° (P = .006). No significant difference in kinematics was observed between the ALC-competent and post-LET knee states in each of the loading conditions at all knee flexion angles (P > .05). CONCLUSIONS In this in vitro model, LET with a semitendinosus graft did not significantly overconstrain the knee or increase pressure in the lateral compartment. Additionally, LET reduced the in situ force in the ACL in the setting of ALC injury. CLINICAL RELEVANCE The lack of knee overconstraint without significant increases in lateral compartment pressures indicates that if an LET with semitendinosus graft is not overtensioned, accelerated degenerative changes in the lateral compartment may not be expected after this procedure.
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Affiliation(s)
- João V Novaretti
- Departments of Orthopaedic Surgery and Bioengineering, Orthopaedic Robotics Laboratory, University of Pittsburgh, Pittsburgh, Pennsylvania, U.S.A.; Department of Orthopaedics and Traumatology, Orthopaedics and Traumatology Sports Center, Paulista School of Medicine, Federal University of São Paulo, São Paulo, Brazil
| | - Justin W Arner
- Departments of Orthopaedic Surgery and Bioengineering, Orthopaedic Robotics Laboratory, University of Pittsburgh, Pittsburgh, Pennsylvania, U.S.A
| | - Calvin K Chan
- Departments of Orthopaedic Surgery and Bioengineering, Orthopaedic Robotics Laboratory, University of Pittsburgh, Pittsburgh, Pennsylvania, U.S.A
| | - Sene Polamalu
- Departments of Orthopaedic Surgery and Bioengineering, Orthopaedic Robotics Laboratory, University of Pittsburgh, Pittsburgh, Pennsylvania, U.S.A
| | - Christopher D Harner
- Department of Orthopaedic Surgery, The University of Texas Health Science Center at Houston, McGovern Medical School, Houston, Texas, U.S.A
| | - Richard E Debski
- Departments of Orthopaedic Surgery and Bioengineering, Orthopaedic Robotics Laboratory, University of Pittsburgh, Pittsburgh, Pennsylvania, U.S.A
| | - Bryson P Lesniak
- Departments of Orthopaedic Surgery and Bioengineering, Orthopaedic Robotics Laboratory, University of Pittsburgh, Pittsburgh, Pennsylvania, U.S.A..
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Abstract
A subset of patients have residual rotational laxity following anterior cruciate ligament reconstruction (ACLR) despite the evolution of ACLR techniques. In recent years, there has been increased interest in addressing residual laxity because it is associated with poor outcomes after ACLR. There is an expanding body of knowledge on the anatomy and biomechanics of the anterolateral soft tissue restraints in regard to their rotational control of the knee and this has reignited an interest in extra-articular reconstruction techniques for augmenting ACLR. Reconstruction techniques currently used can be broadly categorized as either lateral extra-articular tenodesis or anterolateral ligament reconstruction. In this review, we discuss the relevant anatomy, biomechanics, and rationale behind the indications and technique of our current extra-articular augmentation procedure.
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29
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Lee DW, Kim JG, Kim HT, Cho SI. Evaluation of Anterolateral Ligament Healing After Anatomic Anterior Cruciate Ligament Reconstruction. Am J Sports Med 2020; 48:1078-1087. [PMID: 32176530 DOI: 10.1177/0363546520908805] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
BACKGROUND Few studies have reported the healing process of anterolateral ligament (ALL) injuries. PURPOSE/HYPOTHESIS This study investigated the healing status of ALL injuries after primary anterior cruciate ligament (ACL) reconstruction (ACLR). Additionally, we investigated the association between the healing status of ALL injuries and associated lesions such as osseous lesions and meniscal tears occurring at the time of an ACL rupture. We hypothesized that acute ALL injuries show a high rate (more than two-thirds) of healing at the 1-year follow-up after ACLR and that concomitant lesions observed at the time of an ACL rupture affect the healing status of the ALL. STUDY DESIGN Case-control study; Level of evidence, 3. METHODS We retrospectively investigated patients with ALL injuries who underwent primary ACLR between March 2015 and February 2017. Using magnetic resonance imaging (MRI), we evaluated the features of ALL injuries and concomitant lesions, and MRI was performed at the 1-year follow-up to assess the healing status of the ALL. We investigated the association between the healing status of the ALL and concomitant lesions observed at the time of an ACL rupture. A subjective assessment was performed using the Lysholm score, International Knee Documentation Committee subjective score, and Tegner activity scale. Objective tests included an isokinetic strength assessment and functional performance testing. RESULTS With respect to the severity of ALL injuries, of 54 patients, a complete rupture occurred in 16 (29.6%) of the 54 patients and a partial rupture in 38 (70%). A significant association was observed between the severity of ALL injuries and bone contusions (lateral tibial plateau and medial tibial plateau [MTP]) and meniscus ramp lesions (Fisher exact test: P = .023, .012, and .023, respectively). Good and partial healing of the ALL occurred in 16 (29.6%) and 23 (42.6%) of 54 patients, respectively. Scar formation occurred in 12 (22.2%), and nonvisualization of the ALL was observed in 3 (5.6%) of 54 patients. Poor healing of the ALL was associated with preoperative MTP bone contusions and a high-grade pivot shift. Multivariate analysis showed that an MTP bone contusion was an independent risk factor associated with poor healing of the ALL. Among the functional tests performed, significant differences were observed between the good and poor healing groups with respect to the carioca test (P = .039). The good healing group (n = 16) showed a negative pivot shift at the last follow-up, whereas 5 (13.2%) of the patients from the poor healing group (n = 38) showed a positive pivot shift, including 2 (5.3%) with a high-grade pivot shift. CONCLUSION Approximately 70% of acute ALL injuries showed poor healing at the 1-year follow-up. Poor healing of ALL injuries was significantly associated with preoperative MTP bone contusions and a high-grade pivot shift. Therefore, a careful assessment of posteromedial bone contusions at the time of an ACL rupture is warranted, particularly in patients with a high-grade pivot shift.
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Affiliation(s)
- Dhong Won Lee
- Department of Orthopaedic Surgery and Sports Medicine, Konkuk University Medical Center, Seoul, Republic of Korea
| | | | - Hyun Tae Kim
- Department of Orthopaedic Surgery and Sports Medicine, Konkuk University Medical Center, Seoul, Republic of Korea
| | - Seung Ik Cho
- Sports Medical Center, Konkuk University Medical Center, Seoul, Republic of Korea
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30
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Hughes JD, Rauer T, Gibbs CM, Musahl V. Diagnosis and treatment of rotatory knee instability. J Exp Orthop 2019; 6:48. [PMID: 31865518 PMCID: PMC6925612 DOI: 10.1186/s40634-019-0217-1] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/07/2019] [Accepted: 12/13/2019] [Indexed: 01/15/2023] Open
Abstract
BACKGROUND Rotatory knee instability is an abnormal, complex three-dimensional motion that can involve pathology of the anteromedial, anterolateral, posteromedial, and posterolateral ligaments, bony alignment, and menisci. To understand the abnormal joint kinematics in rotatory knee instability, a review of the anatomical structures and their graded role in maintaining rotational stability, the importance of concomitant pathologies, as well as the different components of the knee rotation motion will be presented. MAIN BODY The most common instability pattern, anterolateral rotatory knee instability in an anterior cruciate ligament (ACL)-deficient patient, will be discussed in detail. Although intra-articular ACL reconstruction is the gold standard treatment for ACL injury in physically active patients, in some cases current techniques may fail to restore native knee rotatory stability. The wide range of diagnostic options for rotatory knee instability including manual testing, different imaging modalities, static and dynamic measurement, and navigation is outlined. As numerous techniques of extra-articular tenodesis procedures have been described, performed in conjunction with ACL reconstruction, to restore anterolateral knee rotatory stability, a few of these techniques will be described in detail, and discuss the literature concerning their outcome. CONCLUSION In summary, the essence of reducing anterolateral rotatory knee instability begins and ends with a well-done, anatomic ACL reconstruction, which may be performed with consideration of extra-articular tenodesis in a select group of patients.
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Affiliation(s)
- Jonathan D Hughes
- Department of Orthopaedic Surgery, UPMC Freddie Fu Sports Medicine Center, University of Pittsburgh, 3200 S. Water St, Pittsburgh, PA, 15203, USA
| | - Thomas Rauer
- Department of Trauma Surgery, University Hospital Zurich, Zurich, Switzerland
| | - Christopher M Gibbs
- Department of Orthopaedic Surgery, UPMC Freddie Fu Sports Medicine Center, University of Pittsburgh, 3200 S. Water St, Pittsburgh, PA, 15203, USA
| | - Volker Musahl
- Department of Orthopaedic Surgery, UPMC Freddie Fu Sports Medicine Center, University of Pittsburgh, 3200 S. Water St, Pittsburgh, PA, 15203, USA.
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31
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Katakura M, Koga H, Nakamura T, Araki D, Nagai K, Nishida K, Kuroda R, Muneta T. Biomechanical Effects of Additional Anterolateral Structure Reconstruction With Different Femoral Attachment Sites on Anterior Cruciate Ligament Reconstruction. Am J Sports Med 2019; 47:3373-3380. [PMID: 31657943 DOI: 10.1177/0363546519880192] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
BACKGROUND Recently reported anterolateral structure reconstructions (ALSRs) to augment intra-articular anterior cruciate ligament reconstruction (ACLR) use various femoral attachment sites, and their biomechanical effects are still unknown. HYPOTHESIS ALSR concomitant with ACLR would control anterolateral rotational instability better than ACLR alone, and if ALSR had different femoral attachment sites, there would be different effects on its control of anterolateral rotational instability. STUDY DESIGN Controlled laboratory study. METHODS Twelve fresh-frozen hemipelvis lower limbs were included. Anterior tibial translation during the Lachman test and tibial acceleration during the pivot-shift test were measured with a 3-dimensional electromagnetic measurement system in situations with the (1) ACL and ALS intact, (2) ACL and ALS cut, (3) ALSR without ACLR (ALSR alone), (4) ACLR without ALSR (ACLR alone), and (5) ALSR with ACLR. Three femoral attachment sites were used for ALSR: F1, 2 mm anterior and 2 mm distal to the lateral epicondyle; F2, 4 mm posterior and 8 mm proximal to the lateral epicondyle; and F3, over-the-top position for the lateral extra-articular tenodesis. The Steel test and Wilcoxon signed rank test were used for statistical analysis. RESULTS Anterior tibial translation during the Lachman test in the ACL and ALS-cut state was significantly larger than it was in the ACL and ALS-intact state, while its difference disappeared after ACLR. As for the pivot-shift test, additional ALSR with F2 to ACLR significantly decreased the acceleration (P = .046), although additional ALSR with F1 and F3 showed no significant effect. CONCLUSION ALSR with the femoral attachment site 4 mm posterior and 8 mm proximal to the lateral epicondyle in addition to ACLR played a role in reducing anterolateral rotational instability the most effectively among the measured attachment sites. CLINICAL RELEVANCE The present data will contribute to determine the appropriate femoral attachment site for ALSR to better control anterolateral rotational instability after ACL reconstruction.
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Affiliation(s)
- Mai Katakura
- Department of Joint Surgery and Sports Medicine, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, Tokyo, Japan.,Department of Orthopaedic Surgery, Hospital of Medicine, Tokyo Medical and Dental University, Tokyo, Japan
| | - Hideyuki Koga
- Department of Joint Surgery and Sports Medicine, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, Tokyo, Japan.,Department of Orthopaedic Surgery, Hospital of Medicine, Tokyo Medical and Dental University, Tokyo, Japan
| | - Tomomasa Nakamura
- Department of Joint Surgery and Sports Medicine, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, Tokyo, Japan
| | - Daisuke Araki
- Department of Orthopaedic Surgery, Graduate School of Medicine, Kobe University, Kobe, Japan
| | - Kanto Nagai
- Department of Orthopaedic Surgery, Graduate School of Medicine, Kobe University, Kobe, Japan
| | - Kyohei Nishida
- Department of Orthopaedic Surgery, Graduate School of Medicine, Kobe University, Kobe, Japan
| | - Ryosuke Kuroda
- Department of Orthopaedic Surgery, Graduate School of Medicine, Kobe University, Kobe, Japan
| | - Takeshi Muneta
- National Hospital Organization Disaster Medical Center, Tachikawa-shi, Japan
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32
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Kwapisz A, Mollison S, McRae S, MacDonald P. Lateral Extra-articular Tenodesis With Proximal Staple Fixation. Arthrosc Tech 2019; 8:e821-e825. [PMID: 31700777 PMCID: PMC6823835 DOI: 10.1016/j.eats.2019.03.020] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/26/2018] [Accepted: 03/19/2019] [Indexed: 02/03/2023] Open
Abstract
A technique for lateral extra-articular tenodesis using proximal staple fixation is described as an adjunct to anterior cruciate ligament (ACL) reconstruction. Lateral extra-articular tenodesis has been used in an effort to decrease failure rates in ACL-deficient patients with ligamentous laxity, prior failed ACL surgery, or grade 3 pivot-shift findings. Numerous surgeons have described combining ACL reconstruction with extra-articular surgery. The approach described in this article is easy and cost-effective. Moreover, because this technique uses a staple instead of a SwiveLock (Arthrex, Naples, FL) or other suture anchor, it limits the chance of conflicting with the tunnels for the ACL because there is no need to drill or punch additional tunnels.
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Affiliation(s)
| | | | - Sheila McRae
- Address correspondence to Sheila McRae, Ph.D., Pan Am Clinic and University of Manitoba, 75 Poseidon Bay, Winnipeg, MB, Canada.
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33
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Devitt BM, Lord BR, Williams A, Amis AA, Feller JA. Biomechanical Assessment of a Distally Fixed Lateral Extra-articular Augmentation Procedure in the Treatment of Anterolateral Rotational Laxity of the Knee. Am J Sports Med 2019; 47:2102-2109. [PMID: 31233339 DOI: 10.1177/0363546519856331] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
BACKGROUND Most lateral extra-articular tenodesis (LET) procedures rely on passing a strip of the iliotibial band (ITB) under the fibular (lateral) collateral ligament and fixing it proximally to the femur. The Ellison procedure is a distally fixed lateral extra-articular augmentation procedure with no proximal fixation of the ITB. It has the potential advantages of maintaining a dynamic element of control of knee rotation and avoiding the possibility of overconstraint. HYPOTHESIS The modified Ellison procedure would restore native knee kinematics after sectioning of the anterolateral capsule, and closure of the ITB defect would decrease rotational laxity of the knee. STUDY DESIGN Controlled laboratory study. METHODS Twelve fresh-frozen cadaveric knees were tested in a 6 degrees of freedom robotic system through 0° to 90° of knee flexion to assess anteroposterior, internal rotation (IR), and external rotation laxities. A simulated pivot shift (SPS) was performed at 0°, 15°, 30°, and 45° of flexion. Kinematic testing was performed in the intact knee and anterolateral capsule-injured knee and after the modified Ellison procedure, with and without closure of the ITB defect. A novel pulley system was used to load the ITB at 30 N for all testing states. Statistical analysis used repeated measures analyses of variance and paired t tests with Bonferroni adjustments. RESULTS Sectioning of the anterolateral capsule increased anterior drawer and IR during isolated displacement and with the SPS (mean increase, 2° of IR; P < .05). The modified Ellison procedure reduced both isolated and coupled IR as compared with the sectioned state (P < .05). During isolated testing, IR was reduced close to that of the intact state with the modified Ellison procedure, except at 30° of knee flexion, when it was slightly overconstrained. During the SPS, IR with the closed modified Ellison was less than that in the intact state at 15° and 30° of flexion. No significant differences in knee kinematics were seen between the ITB defect open and closed. CONCLUSION A distally fixed lateral augmentation procedure can closely restore knee laxities to native values in an anterolateral capsule-sectioned knee. Although the modified Ellison did result in overconstraint to isolated IR and coupled IR during SPS, this occurred only in the early range of knee flexion. Closure of the ITB defect had no effect on knee kinematics. CLINICAL RELEVANCE A distally fixed lateral extra-articular augmentation procedure provides an alternative to a proximally fixed LET and can reduce anterolateral laxity in the anterolateral capsule-injured knee and restore kinematics close to the intact state.
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Affiliation(s)
- Brian M Devitt
- OrthoSport Victoria, Epworth Healthcare, Melbourne, Australia
| | - Breck R Lord
- The Biomechanics Group, Department of Mechanical Engineering, Imperial College London, London, United Kingdom
| | | | - Andrew A Amis
- The Biomechanics Group, Department of Mechanical Engineering, Imperial College London, London, United Kingdom.,Musculoskeletal Surgery Group, School of Medicine, Imperial College London, London, United Kingdom
| | - Julian A Feller
- OrthoSport Victoria, Epworth Healthcare, Melbourne, Australia
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Abstract
In the anterior cruciate ligament (ACL) deficient knee, excellent outcomes are achieved in many patients with an isolated, intra-articular ACL reconstruction. Some patients, however, have ongoing instability or suffer graft rupture. Failure after ACL reconstruction is multifactorial, but residual anterolateral rotatory laxity is 1 potential contributing factor. Lateral extra-articular procedures are a heterogenous group of operations that were initially described as isolated treatments for the ACL deficient knee, and subsequently used in combination with intra-articular reconstructions. Initial observational studies were encouraging, however, comparative studies were less flattering and lead to a general abandonment of these procedures. With improved understanding of the anatomy and biomechanics of the anterolateral capsuloligamentous complex there has been a renewed interest in these procedures. Recent systematic reviews suggest efficacy of these procedures in improving rotational control, though data showing improved patient reported outcomes or reduced graft rupture rates are lacking. Preliminary results from ongoing clinical trials are supportive for lateral extra-articular tenodesis when used as an augment to modern, intra-articular ACL reconstructions in targeted, high-risk patients.
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Slichter ME, Wolterbeek N, Auw Yang KG, Zijl JAC, Piscaer TM. A novel test for assessment of anterolateral rotatory instability of the knee: the tibial internal rotation test (TIR test). J Exp Orthop 2018; 5:29. [PMID: 30094573 PMCID: PMC6085217 DOI: 10.1186/s40634-018-0141-9] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/23/2018] [Accepted: 06/22/2018] [Indexed: 01/26/2023] Open
Abstract
Background Rotational instability of the knee may persist after anterior cruciate ligament (ACL) reconstruction, which may be due to insufficiency of anterolateral stabilizing structures. However, no reliable diagnostic tool or physical examination test is available for identifying patients with anterolateral rotatory instability (ALRI). As shown in cadaveric studies, static internal rotation of the knee is increased in higher flexion angles of the knee after severing the anterolateral structures. This might also be the case in patients with an ACL-deficient knee and concomitant damage to the anterolateral structures. The objective of this study is to assess anterolateral rotatory instability of the knee during physical examination with a tibial internal rotation test. Methods ACL-injured knees of 52 patients were examined by two examiners and side-to-side differences were compared. Both lower legs were internally rotated by applying manual internal rotation torque to both feet in prone position with the knees in 30°, 60° and 90° of flexion. For quantification of the amount of rotation in degrees, a torque adapter on a booth was used. Intra-rater, inter-rater and rater-device agreement were determined by calculating kappa (κ) for the tibial internal rotation test. Results Tibial internal rotation is increased in 19.2% of the patients with ACL injury according to the tibial internal rotation test. Good intra-rater agreement was found for the tibial internal rotation test, κC = 0.63 (95%CI -0.02-1.28), p = 0.015. Fair inter-rater agreement was found, κF = 0.29 (95%CI 0.02–0.57), p = 0.038. Good rater-device agreement was found, κC = 0.62 (95%CI 0.15–1.10), p = 0.001. Conclusion The tibial internal rotation test shows increased tibial internal rotation in a small amount of patients with ACL injury. Even though no gold standard for assessment of increased tibial internal rotation of the knee is available yet, the test can be of additional value. It can be used for assessment of internal rotatory laxity of the knee as part of ALRI in addition to the pivot shift test. No clinical implications should yet be based on this test alone. Electronic supplementary material The online version of this article (10.1186/s40634-018-0141-9) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Malou E Slichter
- Department of Orthopaedic Surgery, St. Antonius hospital, P.O. Box 2500, 3430 EM, Nieuwegein, The Netherlands
| | - Nienke Wolterbeek
- Department of Orthopaedic Surgery, St. Antonius hospital, P.O. Box 2500, 3430 EM, Nieuwegein, The Netherlands
| | - K Gie Auw Yang
- Department of Orthopaedic Surgery, St. Antonius hospital, P.O. Box 2500, 3430 EM, Nieuwegein, The Netherlands
| | - Jacco A C Zijl
- Department of Orthopaedic Surgery, St. Antonius hospital, P.O. Box 2500, 3430 EM, Nieuwegein, The Netherlands
| | - Tom M Piscaer
- Department of Orthopaedic Surgery, St. Antonius hospital, P.O. Box 2500, 3430 EM, Nieuwegein, The Netherlands. .,Department of Orthopaedic Surgery, Erasmus Medical Center, P.O. Box 2040, 3000 CA, Rotterdam, the Netherlands.
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Kanakamedala AC, Burnham JM, Pfeiffer TR, Herbst E, Kowalczuk M, Popchak A, Irrgang J, Fu FH, Musahl V. Lateral femoral notch depth is not associated with increased rotatory instability in ACL-injured knees: a quantitative pivot shift analysis. Knee Surg Sports Traumatol Arthrosc 2018; 26:1399-1405. [PMID: 29119285 DOI: 10.1007/s00167-017-4770-9] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/13/2017] [Accepted: 10/30/2017] [Indexed: 11/27/2022]
Abstract
PURPOSE A deep lateral femoral notch (LFN) on lateral radiographs is indicative of ACL injury. Prior studies have suggested that a deep LFN may also be a sign of persistent rotatory instability and a concomitant lateral meniscus tear. Therefore, the purpose of this study was to evaluate the relationship between LFN depth and both quantitative measures of rotatory knee instability and the incidence of lateral meniscus tears. It was hypothesized that greater LFN depth would be correlated with increased rotatory instability, quantified by lateral compartment translation and tibial acceleration during a quantitative pivot shift test, and incidence of lateral meniscus tears. METHODS ACL-injured patients enrolled in a prospective ACL registry from 2014 to 2016 were analyzed. To limit confounders, patients were only included if they had primary ACL tears, no concurrent ligamentous or bony injuries requiring operative treatment, and no previous knee injuries or surgeries to either knee. Eighty-four patients were included in the final analysis. A standardized quantitative pivot shift test was performed pre-operatively under anesthesia in both knees, and rotatory instability, specifically lateral compartment translation and tibial acceleration, was quantified using tablet image analysis software and accelerometer sensors. Standard lateral radiographs and sagittal magnetic resonance images (MRI) of the injured knee were evaluated for LFN depth. RESULTS There were no significant correlations between LFN depth on either imaging modality and ipsilateral lateral compartment translation or tibial acceleration during a quantitative pivot shift test or side-to-side differences in these measurements. Patients with lateral meniscus tears were found to have significantly greater LFN depths than those without on conventional radiograph and MRI (1.0 vs. 0.6 mm, p < 0.05; 1.2 vs. 0.8 mm, p < 0.05, respectively). CONCLUSION There was no correlation between lateral femoral notch depth on conventional radiographs or MRI and quantitative measures of rotatory instability. Concomitant lateral meniscus injury was associated with significantly greater LFN depth. Based on these findings, LFN depth should not be used as an indicator of excessive rotatory instability, but may be an indicator of lateral meniscus injury in ACL-injured patients. LEVEL OF EVIDENCE Prognostic level IV.
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Affiliation(s)
- Ajay C Kanakamedala
- Department of Orthopaedic Surgery, Center for Sports Medicine, UPMC Rooney Sports Complex, University of Pittsburgh Medical Center, 3200 S Water Street, Pittsburgh, PA, 15203, USA
| | - Jeremy M Burnham
- Department of Orthopaedic Surgery, Center for Sports Medicine, UPMC Rooney Sports Complex, University of Pittsburgh Medical Center, 3200 S Water Street, Pittsburgh, PA, 15203, USA
| | - Thomas R Pfeiffer
- Department of Orthopaedic Surgery, Trauma Surgery and Sports Medicine, Cologne Merheim Medical Center, Witten/Herdecke University, 51109, Cologne, Germany
| | - Elmar Herbst
- Department of Orthopaedic Sports Medicine, Technical University Munich, 81675, Munich, Germany
| | - Marcin Kowalczuk
- Department of Orthopaedic Surgery, Center for Sports Medicine, UPMC Rooney Sports Complex, University of Pittsburgh Medical Center, 3200 S Water Street, Pittsburgh, PA, 15203, USA
| | - Adam Popchak
- Department of Orthopaedic Surgery, Center for Sports Medicine, UPMC Rooney Sports Complex, University of Pittsburgh Medical Center, 3200 S Water Street, Pittsburgh, PA, 15203, USA
| | - James Irrgang
- Department of Orthopaedic Surgery, Center for Sports Medicine, UPMC Rooney Sports Complex, University of Pittsburgh Medical Center, 3200 S Water Street, Pittsburgh, PA, 15203, USA
| | - Freddie H Fu
- Department of Orthopaedic Surgery, Center for Sports Medicine, UPMC Rooney Sports Complex, University of Pittsburgh Medical Center, 3200 S Water Street, Pittsburgh, PA, 15203, USA
| | - Volker Musahl
- Department of Orthopaedic Surgery, Center for Sports Medicine, UPMC Rooney Sports Complex, University of Pittsburgh Medical Center, 3200 S Water Street, Pittsburgh, PA, 15203, USA.
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Geeslin AG, Chahla J, Moatshe G, Muckenhirn KJ, Kruckeberg BM, Brady AW, Coggins A, Dornan GJ, Getgood AM, Godin JA, LaPrade RF. Anterolateral Knee Extra-articular Stabilizers: A Robotic Sectioning Study of the Anterolateral Ligament and Distal Iliotibial Band Kaplan Fibers. Am J Sports Med 2018; 46:1352-1361. [PMID: 29558208 DOI: 10.1177/0363546518759053] [Citation(s) in RCA: 58] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
BACKGROUND The individual kinematic roles of the anterolateral ligament (ALL) and the distal iliotibial band Kaplan fibers in the setting of anterior cruciate ligament (ACL) deficiency require further clarification. This will improve understanding of their potential contribution to residual anterolateral rotational laxity after ACL reconstruction and may influence selection of an anterolateral extra-articular reconstruction technique, which is currently a matter of debate. Hypothesis/Purpose: To compare the role of the ALL and the Kaplan fibers in stabilizing the knee against tibial internal rotation, anterior tibial translation, and the pivot shift in ACL-deficient knees. We hypothesized that the Kaplan fibers would provide greater tibial internal rotation restraint than the ALL in ACL-deficient knees and that both structures would provide restraint against internal rotation during a simulated pivot-shift test. STUDY DESIGN Controlled laboratory study. METHODS Ten paired fresh-frozen cadaveric knees (n = 20) were used to investigate the effect of sectioning the ALL and the Kaplan fibers in ACL-deficient knees with a 6 degrees of freedom robotic testing system. After ACL sectioning, sectioning was randomly performed for the ALL and the Kaplan fibers. An established robotic testing protocol was utilized to assess knee kinematics when the specimens were subjected to a 5-N·m internal rotation torque (0°-90° at 15° increments), a simulated pivot shift with 10-N·m valgus and 5-N·m internal rotation torque (15° and 30°), and an 88-N anterior tibial load (30° and 90°). RESULTS Sectioning of the ACL led to significantly increased tibial internal rotation (from 0° to 90°) and anterior tibial translation (30° and 90°) as compared with the intact state. Significantly increased internal rotation occurred with further sectioning of the ALL (15°-90°) and Kaplan fibers (15°, 60°-90°). At higher flexion angles (60°-90°), sectioning the Kaplan fibers led to significantly greater internal rotation when compared with ALL sectioning. On simulated pivot-shift testing, ALL sectioning led to significantly increased internal rotation and anterior translation at 15° and 30°; sectioning of the Kaplan fibers led to significantly increased tibial internal rotation at 15° and 30° and anterior translation at 15°. No significant difference was found when anterior tibial translation was compared between the ACL/ALL- and ACL/Kaplan fiber-deficient states on simulated pivot-shift testing or isolated anterior tibial load. CONCLUSION The ALL and Kaplan fibers restrain internal rotation in the ACL-deficient knee. Sectioning the Kaplan fibers led to greater tibial internal rotation at higher flexion angles (60°-90°) as compared with ALL sectioning. Additionally, the ALL and Kaplan fibers contribute to restraint of the pivot shift and anterior tibial translation in the ACL-deficient knee. CLINICAL RELEVANCE This study reports that the ALL and distal iliotibial band Kaplan fibers restrain anterior tibial translation, internal rotation, and pivot shift in the ACL-deficient knee. Furthermore, sectioning the Kaplan fibers led to significantly greater tibial internal rotation when compared with ALL sectioning at high flexion angles. These results demonstrate increased rotational knee laxity with combined ACL and anterolateral extra-articular knee injuries and may allow surgeons to optimize the care of patients with this injury pattern.
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Affiliation(s)
| | - Jorge Chahla
- Steadman Philippon Research Institute, Vail, Colorado, USA
| | - Gilbert Moatshe
- Steadman Philippon Research Institute, Vail, Colorado, USA.,Oslo University Hospital and University of Oslo, Oslo, Norway.,Oslo Sports Trauma Research Center, Norwegian School of Sports Sciences, Oslo, Norway
| | | | | | - Alex W Brady
- Steadman Philippon Research Institute, Vail, Colorado, USA
| | - Ashley Coggins
- Steadman Philippon Research Institute, Vail, Colorado, USA
| | - Grant J Dornan
- Steadman Philippon Research Institute, Vail, Colorado, USA
| | - Alan M Getgood
- Fowler Kennedy Sport Medicine Clinic, University of Western Ontario, London, Ontario, Canada
| | | | - Robert F LaPrade
- Steadman Philippon Research Institute, Vail, Colorado, USA.,The Steadman Clinic, Vail, Colorado, USA
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Kraeutler MJ, Welton KL, Chahla J, LaPrade RF, McCarty EC. Current Concepts of the Anterolateral Ligament of the Knee: Anatomy, Biomechanics, and Reconstruction. Am J Sports Med 2018; 46:1235-1242. [PMID: 28426251 DOI: 10.1177/0363546517701920] [Citation(s) in RCA: 61] [Impact Index Per Article: 10.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
In 1879, Paul Segond described an avulsion fracture (now known as a Segond fracture) at the anterolateral proximal tibia with the presence of a fibrous band at the location of this fracture. Although references to this ligament were occasionally made in the anatomy literature after Segond's discovery, it was not until 2012 that Vincent et al named this ligament what we know it as today, the anterolateral ligament (ALL) of the knee. The ALL originates near the lateral epicondyle of the distal femur and inserts on the proximal tibia near Gerdy's tubercle. The ALL exists as a ligamentous structure that comes under tension during internal rotation at 30°. In the majority of specimens, the ALL can be visualized as a ligamentous structure, whereas in some cases it may only be palpated as bundles of more tense capsular tissue when internal rotation is applied. Biomechanical studies have shown that the ALL functions as a secondary stabilizer to the anterior cruciate ligament (ACL) in resisting anterior tibial translation and internal tibial rotation. These biomechanical studies indicate that concurrent reconstruction of the ACL and ALL results in significantly reduced internal rotation and axial plane tibial translation compared with isolated ACL reconstruction (ACLR) in the presence of ALL deficiency. Clinically, a variety of techniques are available for ALL reconstruction (ALLR). Current graft options include the iliotibial (IT) band, gracilis tendon autograft or allograft, and semitendinosus tendon autograft or allograft. Fixation angle also varies between studies from full knee extension to 60° to 90° of flexion. To date, only 1 modern study has described the clinical outcomes of concomitant ALLR and ACLR: a case series of 92 patients with a minimum 2-year follow-up. Further studies are necessary to define the ideal graft type, location of fixation, and fixation angle for ALLR. Future studies also must be designed in a prospective comparative manner to compare the clinical outcomes of patients undergoing ACLR with ALL reconstruction versus without ALL reconstruction. By discovering the true effect of the ALL, investigators can elucidate the importance of ALLR in the setting of an ACL tear.
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Affiliation(s)
- Matthew J Kraeutler
- University of Colorado School of Medicine, Department of Orthopedics, Aurora, Colorado, USA
| | - K Linnea Welton
- University of Colorado School of Medicine, Department of Orthopedics, Aurora, Colorado, USA
| | - Jorge Chahla
- Steadman Philippon Research Institute, Vail, Colorado, USA
| | - Robert F LaPrade
- Steadman Philippon Research Institute, Vail, Colorado, USA.,The Steadman Clinic, Vail, Colorado, USA
| | - Eric C McCarty
- University of Colorado School of Medicine, Department of Orthopedics, Aurora, Colorado, USA
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Porter MD, Shadbolt B, Pomroy S. The Augmentation of Revision Anterior Cruciate Ligament Reconstruction With Modified Iliotibial Band Tenodesis to Correct the Pivot Shift: A Computer Navigation Study. Am J Sports Med 2018; 46:839-845. [PMID: 29389221 DOI: 10.1177/0363546517750123] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
BACKGROUND Iliotibial band (ITB) tenodesis improves stability and functional outcomes when added to anterior cruciate ligament (ACL) reconstruction. Its precise indications are unknown. Persistence of the pivot shift after revision ACL reconstruction may be one indication. HYPOTHESIS The addition of ITB tenodesis for a persistent pivot shift after revision ACL reconstruction will improve stability and activity levels. STUDY DESIGN Cohort study; Level of evidence, 2. METHODS Adults with recurrent ACL ruptures underwent revision ACL reconstruction, followed by a pivot-shift test before the surgery ended. If the pivot shift was grade 0 or 1, no further surgery was performed (group 1). If it was grade 2 or 3, ITB tenodesis was performed (group 2). The pivot-shift test was performed, graded, and measured using computer navigation before revision ACL reconstruction and after revision ACL reconstruction with and without ITB tenodesis. Tegner activity scores were obtained 2 years after surgery. Groups were compared with regard to anterior translation and internal rotation during the pivot shift as well as Tegner activity scores ( P < .05). RESULTS There were 20 patients in group 1 and 18 in group 2. The mean anterior translation improved in group 1, from 17.7 ± 3.5 mm to 6.6 ± 1.9 mm, and group 2, from 18.5 ± 3.3 mm to 6.1 ± 1.2 mm, after revision ACL reconstruction ( P < .001), with no difference between the groups ( P = .15). After ITB tenodesis, the reduction in anterior translation in group 2 (5.3 ± 1.5 mm) became greater than that in group 1 (6.6 ± 1.9 mm) ( P = .03). In both groups after revision ACL reconstruction, there was a reduction in internal rotation (group 1: 24.2° ± 4.0° to 10.3° ± 1.1°; group 2: 25.4° ± 3.7° to 14.6° ± 2.8°; P < .001), but this change was less in group 2 ( P = .02). After ITB tenodesis, internal rotation in group 2 (8.3° ± 2.6°) became less than that in group 1 (10.3° ± 1.1°) ( P = .02). The mean Tegner activity scores in group 1 were 8.1 ± 1.1 before surgery and 7.4 ± 0.9 after surgery, while in group 2 they were 7.0 ± 1.3 and 7.2 ± 0.4, respectively, and not significantly different ( P = .29). CONCLUSION ITB tenodesis improved laxity, although it did not affect activity levels, when there was a persistent pivot shift after revision ACL reconstruction. CLINICAL RELEVANCE An indication to perform ITB tenodesis is the persistence of a grade ≥2 pivot shift after revision ACL reconstruction.
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Affiliation(s)
- Mark D Porter
- Canberra Orthopaedics and Sports Medicine, Calvary Clinic, Bruce, Australia
| | - Bruce Shadbolt
- Department of Epidemiology, Canberra Hospital, Garran, Australia
| | - Samantha Pomroy
- Canberra Orthopaedics and Sports Medicine, Calvary Clinic, Bruce, Australia
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Challenges in the Management of Anterior Cruciate Ligament Ruptures in Skeletally Immature Patients. J Am Acad Orthop Surg 2018; 26:e50-e61. [PMID: 29239869 DOI: 10.5435/jaaos-d-17-00294] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/01/2023] Open
Abstract
Although initially considered rare, anterior cruciate ligament (ACL) ruptures in pediatric patients recently have increased substantially as a result of greater awareness of the injury and increased participation in youth sports. Although pediatric patients with an ACL injury and a clinically stable joint may handle the injury well and return to sports activity without requiring surgical reconstruction, young, active patients with an ACL rupture and an unstable joint may be good candidates for ACL reconstruction to prevent ongoing instability and additional joint damage. ACL reconstruction techniques have been developed to prevent physeal injury in skeletally immature patients. The surgical treatment of skeletally immature patients with an ACL rupture may differ from that of adults with an ACL rupture and presents unique challenges with regard to reconstruction technique selection, graft preparation, rehabilitation, and return to sports activity. Orthopaedic surgeons should understand various physeal-sparing ACL reconstruction techniques and the general challenges associated with the surgical management of ACL ruptures in pediatric patients.
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Sonnery-Cottet B, Barbosa NC, Vieira TD, Saithna A. Clinical outcomes of extra-articular tenodesis/anterolateral reconstruction in the ACL injured knee. Knee Surg Sports Traumatol Arthrosc 2018; 26:596-604. [PMID: 28608009 DOI: 10.1007/s00167-017-4596-5] [Citation(s) in RCA: 41] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/21/2016] [Accepted: 06/06/2017] [Indexed: 01/08/2023]
Abstract
PURPOSE The role of concomitant extra-articular procedures in improving the outcome of ACL reconstruction has experienced a recent resurgence in interest. The aim of this article is to highlight the differences in philosophies and outcomes of historical lateral extra-articular tenodesis (LET) and contemporary, anterolateral reconstruction. METHODS A narrative review was performed using PubMed/MEDLINE using the keywords "lateral extra-articular tenodesis" and "anterolateral ligament reconstruction". RESULTS Results of search strategy: Thirty-seven studies [13 reporting clinical outcomes of isolated LET in ACL deficient knees and 24 comparing isolated anterior cruciate ligament reconstruction (ACLR) with ACLR + LET] and 1 study on anterolateral ligament (ALL) reconstruction were identified as relevant and included in the review. Results of literature review: Isolated extra-articular reconstructions are rarely performed in contemporary practice. They are associated with a high rate of persistent anterior instability and early degenerative change. Combined ACL reconstruction and lateral extra-articular tenodeses results in a significant reduction in the prevalence of residual pivot shift, but the majority of the studies do not demonstrate any significant difference with respect to patient-reported outcome measures and return to sport. Although several authors report a trend towards decreased graft rupture rates, significant differences were not demonstrated in most studies. In a single clinical study, combined anatomic ACL and anterolateral ligament reconstruction was reported to be associated with a threefold reduction in graft rupture rates and improved return to sport compared to isolated ACL graft choices. CONCLUSIONS Historically performed, combined ACL reconstruction and lateral extra-articular tenodeses are associated with improved knee kinematics. Although trends towards decreased graft rupture rates are reported by several authors, the majority did not demonstrate a significant difference, likely as a result of small and underpowered studies using post-operative immobilisation and delayed rehabilitation protocols. More recently, combined ACLR and ALL reconstruction has been shown to be associated with significant improvements in graft failure and return to sport rates when compared to isolated ACLR. However, these results are from a single clinical series with only medium-term follow-up. LEVEL OF EVIDENCE IV.
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Affiliation(s)
- Bertrand Sonnery-Cottet
- Centre Orthopedique Santy, FIFA Medical Center of Excellence, 24 Av Paul Santy, Groupe Ramsay GDS, hôpital Mermoz, 69008, Lyon, France.
| | - Nuno Camelo Barbosa
- Centre Orthopedique Santy, FIFA Medical Center of Excellence, 24 Av Paul Santy, Groupe Ramsay GDS, hôpital Mermoz, 69008, Lyon, France
| | - Thais Dutra Vieira
- Centre Orthopedique Santy, FIFA Medical Center of Excellence, 24 Av Paul Santy, Groupe Ramsay GDS, hôpital Mermoz, 69008, Lyon, France
| | - Adnan Saithna
- Southport and Ormskirk Hospitals NHS Trust, Southport, UK.,Department of Clinical Engineering, The University of Liverpool, West Derby Street, Liverpool, L7 8TX, UK
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Ntagiopoulos P, Dejour D. Extra-Articular Plasty for Revision Anterior Cruciate Ligament Reconstruction. Clin Sports Med 2018; 37:115-125. [DOI: 10.1016/j.csm.2017.07.009] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/09/2023]
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Cerciello S, Batailler C, Darwich N, Neyret P. Extra-Articular Tenodesis in Combination with Anterior Cruciate Ligament Reconstruction. Clin Sports Med 2018; 37:87-100. [DOI: 10.1016/j.csm.2017.07.006] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
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Gaunder CL, Bastrom T, Pennock AT. Segond Fractures Are Not a Risk Factor for Anterior Cruciate Ligament Reconstruction Failure. Am J Sports Med 2017; 45:3210-3215. [PMID: 28949245 DOI: 10.1177/0363546517726962] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
BACKGROUND Segond fractures may be identified when an anterior cruciate ligament (ACL) tear is diagnosed and likely represent an avulsion of the anterolateral ligament. It is currently unclear whether these fractures can be ignored at the time of ACL reconstruction or if they should be addressed surgically. PURPOSE To compare the incidence of Segond fractures in patients undergoing primary ACL reconstruction compared with those undergoing revision ACL reconstruction in an attempt to determine if the presence of a Segond fracture predisposes to ACL reconstruction failure. STUDY DESIGN Cross-sectional study; Level of evidence, 3. METHODS A retrospective review of all patients undergoing primary or revision ACL reconstruction between 2007 and 2014 was performed. Demographic data (age, sex, body mass index), injury variables (acuity, mechanism of injury), and radiographic features (concomitant ligamentous injuries, growth plate status) were documented. Each Segond fracture was analyzed for its specific location, size, displacement, and healing using both radiographs and magnetic resonance imaging. Statistical analysis was performed using a P value of <.05. RESULTS A total of 552 patients underwent primary ACL reconstruction, and 47 patients underwent revision ACL reconstruction who met inclusion criteria. The incidence of Segond fractures was 6% in the primary reconstruction group. The fracture fragment averaged 6.6 mm in height and 2.3 mm in width and was displaced a mean of 5.0 mm. The fracture fragment bed was localized at the tibial attachment site of the anterolateral ligament a mean 20.6 mm posterior to the Gerdy tubercle in nearly all patients. After ACL reconstruction, the Segond fracture healed in 90% of patients. The incidence of Segond fractures was 3 times as common in male patients ( P = .02); otherwise, its presence was not associated with any other demographic data, injury variables, or radiographic features ( P > .05). No patients undergoing revision surgery had a Segond fracture, and no patient with a Segond fracture had graft failure. CONCLUSION Patients with a Segond fracture are at no higher risk to require revision ACL reconstruction compared with patients without a Segond fracture. This may be attributable to its high union rate. At the time of primary ACL reconstruction, if a Segond fracture is identified, it can be ignored (not repaired or reconstructed), and this approach does not appear to predispose to early ACL graft failure.
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Affiliation(s)
| | | | - Andrew T Pennock
- Rady Children's Hospital, San Diego, California, USA.,University of California, San Diego, San Diego, California, USA
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Branch T, Stinton S, Sharma A, Lavoie F, Guier C, Neyret P. The impact of bone morphology on the outcome of the pivot shift test: a cohort study. BMC Musculoskelet Disord 2017; 18:463. [PMID: 29149846 PMCID: PMC5693574 DOI: 10.1186/s12891-017-1798-4] [Citation(s) in RCA: 7] [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: 06/15/2017] [Accepted: 11/01/2017] [Indexed: 01/14/2023] Open
Abstract
BACKGROUND The presence of a positive pivot shift after surgical repair of the ACL is considered an important indicator of a failed reconstruction. The ability to predict the result of a pivot shift test after an ACL reconstruction using variables that can be measured prior to surgery could provide an indication of which patients may be at-risk of a poor surgical outcome.The purpose of this study was to determine whether structural characteristics of the femur and tibia, measured using plain radiographs, were associated with the result of the pivot shift test in unilateral ACL reconstructed patients. METHODS Sixteen patients who had undergone unilateral ACL reconstruction were divided into two groups based on the results of manual pivot shift testing: 1) Pivot group; and 2) No pivot group. All patients had standing true lateral radiographs of both knees. Structural measurements of the tibia and femur were made on both knees. In addition, two new variables were created to describe the tibiofemoral mismatch: 1) Femur Tibia Size Ratio (FTSR); and 2) Tibia to Posterior Femoral Condyle Ratio (TPFCR). These measures were compared within groups and between groups. RESULTS None of the individual structural characteristics were significantly different when compared between groups. No individual structural characteristics had a significant association with the presence of a positive pivot shift. When a between-group analysis was performed, both the FTSR (p < 0.03) and the TPFCR (p < 0.01) were significantly different between the Pivot group and the No Pivot group. A larger FTSR ratio, or a larger femur relative to the tibia, was associated with a positive pivot shift. A smaller TPFCR ratio, or a smaller tibial depth relative to the depth of the lateral posterior femoral condyle, was associated with a positive pivot shift. CONCLUSIONS Structural characteristics in the lateral femoral condyle and lateral tibial plateau were found to be associated with the presence of a positive pivot shift. These characteristics could separate between patients in the Pivot group and the No Pivot group. Two indices, the FTSR and the TPFCR, provided better predictive value than individual characteristics in identifying patients with a knee that was structurally "at-risk" for developing a positive pivot shift.
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Affiliation(s)
| | - Shaun Stinton
- ArthroMetrix, 441 Armour Place NE, Atlanta, GA, 30324, USA.
| | - Adrija Sharma
- Center for Musculoskeletal Research, MABE Department, University of Tennessee, Knoxville, TN, USA
| | - Frederic Lavoie
- Department of Orthopedic Surgery, Hôpital Notre-Dame, CHUM, Montréal, QC, Canada
| | - Christian Guier
- San Francisco Sports Medicine and Orthopaedic Surgery, San Francisco, CA, USA
| | - Philippe Neyret
- Department of Orthopaedic Surgery, Centre Albert-Trillat, Hôpital de la Croix-Rousse, Lyon, France
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Inderhaug E, Stephen JM, Williams A, Amis AA. Anterolateral Tenodesis or Anterolateral Ligament Complex Reconstruction: Effect of Flexion Angle at Graft Fixation When Combined With ACL Reconstruction. Am J Sports Med 2017; 45:3089-3097. [PMID: 28898106 DOI: 10.1177/0363546517724422] [Citation(s) in RCA: 111] [Impact Index Per Article: 15.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
BACKGROUND Despite numerous technical descriptions of anterolateral procedures, knowledge is limited regarding the effect of knee flexion angle during graft fixation. PURPOSE To determine the effect of knee flexion angle during graft fixation on tibiofemoral joint kinematics for a modified Lemaire tenodesis or an anterolateral ligament (ALL) complex reconstruction combined with anterior cruciate ligament (ACL) reconstruction. STUDY DESIGN Controlled laboratory study. METHODS Twelve cadaveric knees were mounted in a test rig with kinematics recorded from 0° to 90° flexion. Loads applied to the tibia were 90-N anterior translation, 5-N·m internal tibial rotation, and combined 90-N anterior force and 5-N·m internal rotation. Intact, ACL-deficient, and combined ACL plus anterolateral-deficient states were tested, and then ACL reconstruction was performed and testing was repeated. Thereafter, modified Lemaire tenodeses and ALL procedures with graft fixation at 0°, 30°, and 60° of knee flexion and 20-N graft tension were performed combined with the ACL reconstruction, and repeat testing was performed throughout. Repeated-measures analysis of variance and Bonferroni-adjusted t tests were used for statistical analysis. RESULTS In combined ACL and anterolateral deficiency, isolated ACL reconstruction left residual laxity for both anterior translation and internal rotation. Anterior translation was restored for all combinations of ACL and anterolateral procedures. The combined ACL reconstruction and ALL procedure restored intact knee kinematics when the graft was fixed in full extension, but when the graft was fixed in 30° and 60°, the combined procedure left residual laxity in internal rotation ( P = .043). The combined ACL reconstruction and modified Lemaire procedure restored internal rotation regardless of knee flexion angle at graft fixation. When the combined ACL reconstruction and lateral procedure states were compared with the ACL-only reconstructed state, a significant reduction in internal rotation laxity was seen with the modified Lemaire tenodesis but not with the ALL procedure. CONCLUSION In a knee with combined ACL and anterolateral ligament injuries, the modified Lemaire tenodesis combined with ACL reconstruction restored normal laxities at all angles of flexion for graft fixation (0°, 30°, or 60°), with 20 N of tension. The combined ACL and ALL procedure restored intact knee kinematics when tensioned in full extension. CLINICAL RELEVANCE In combined anterolateral procedure plus intra-articular ACL reconstruction, the knee flexion angle is important when fixing the graft. A modified Lemaire procedure restored intact knee laxities when fixation was performed at 0°, 30°, or 60° of flexion. The ALL procedure restored normal laxities only when fixation occurred in full extension.
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Affiliation(s)
| | - Joanna M Stephen
- Fortius Clinic, London, UK.,Biomechanics Group, Mechanical Engineering Department, Imperial College London, London, UK
| | | | - Andrew A Amis
- Biomechanics Group, Mechanical Engineering Department, Imperial College London, London, UK.,Musculoskeletal Surgery Group, Department of Surgery & Cancer, Imperial College London School of Medicine, London, UK
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Inderhaug E, Stephen JM, El-Daou H, Williams A, Amis AA. The Effects of Anterolateral Tenodesis on Tibiofemoral Contact Pressures and Kinematics. Am J Sports Med 2017; 45:3081-3088. [PMID: 28763623 DOI: 10.1177/0363546517717260] [Citation(s) in RCA: 56] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
BACKGROUND Anterolateral tenodeses are increasingly popular in combination with intra-articular anterior cruciate ligament reconstructions. Despite the perception of risk of overconstraint and lateral osteoarthritis, evidence is lacking regarding the effect of graft tensioning on knee kinematics and intra-articular compartmental joint pressures. PURPOSE To investigate tibiofemoral joint contact pressures and kinematics related to an anterolateral lesion and the effectiveness of a MacIntosh tenodesis in restoring these when varying (1) graft tension and (2) tibial rotation during graft fixation. STUDY DESIGN Controlled laboratory study. METHODS Eight fresh-frozen cadaveric knees were tested in a customized rig with femur fixed and tibia free to move from 0° to 90° of flexion. The quadriceps and iliotibial band were loaded by means of a weighted pulley system. At 30° intervals of knee flexion, tibiofemoral contact pressures were measured with a Tekscan sensor and tibiofemoral kinematics were recorded by use of an optical tracking system. The knee was tested intact and then with an anterolateral soft tissue transection. MacIntosh tenodeses were then tested in a randomized order with 20 N or 80 N of graft tension, each with the tibia held in neutral intact alignment or free to rotate. RESULTS Tibial anterior translation and internal rotation were significantly increased and lateral contact pressures significantly reduced compared with the intact knee following anterolateral soft tissue cutting ( P < .05). Contact pressures were restored with fixed neutral tibial rotation combined with 20 N or 80 N of graft tension or by a free-hanging tibia with 20 N of graft tension (all P values > .5). Grafts tensioned with 80 N caused significant overconstraint both when the tibia was fixed and free hanging (all P values < .05). Increases in the lateral tibiofemoral contact pressures were also seen when the tibia was free hanging and 80 N was used for graft tension ( P < .05). CONCLUSION Anterolateral soft tissue injury caused reduced lateral tibiofemoral contact pressures and altered tibiofemoral kinematics; these were restored with a MacIntosh procedure performed with 20 N of graft tension. If 80 N of graft tension was used, increased lateral contact pressures and overconstraint in internal rotation were seen. With the tibia free hanging, intact contact biomechanics were restored when 20 N of graft tension was applied, but 80 N of graft tension significantly increased lateral tibiofemoral pressures and overconstrained internal rotation. The kinematic and contact pressure effects were significantly correlated: Changes in tibial rotation caused by increased graft tension correlated with elevated lateral articular contact pressure. CLINICAL RELEVANCE Controlling tibial position appears important when tensioning anterolateral tenodeses. However, the identified changes were subtle and may not be clinically significant in a fully loaded knee.
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Affiliation(s)
- Eivind Inderhaug
- Orthopaedic Surgery Department, Haraldsplass Deaconess Hospital, Bergen, Norway
| | - Joanna M Stephen
- Biomechanics Group, Mechanical Engineering Department, Imperial College London, London, UK.,Fortius Clinic, Fitzhardinge Street, London, UK
| | - Hadi El-Daou
- Biomechanics Group, Mechanical Engineering Department, Imperial College London, London, UK
| | | | - Andrew A Amis
- Biomechanics Group, Mechanical Engineering Department, Imperial College London, London, UK.,Musculoskeletal Surgery Group, Imperial College London School of Medicine, Charing Cross Hospital, London, UK
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49
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Jarbo KA, Hartigan DE, Scott KL, Patel KA, Chhabra A. Accuracy of the Lever Sign Test in the Diagnosis of Anterior Cruciate Ligament Injuries. Orthop J Sports Med 2017; 5:2325967117729809. [PMID: 29051898 PMCID: PMC5639970 DOI: 10.1177/2325967117729809] [Citation(s) in RCA: 28] [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] [Indexed: 01/13/2023] Open
Abstract
Background: The lever sign test is a new physical examination tool to diagnose anterior cruciate ligament (ACL) tears. Preliminary results suggest almost 100% sensitivity and specificity to diagnose acute and chronic complete ACL tears and clinically significant partial tears as compared with magnetic resonance imaging (MRI). Purpose: To assess the sensitivity and specificity of the lever sign test for the diagnosis of acute ACL injuries, as compared to MRI. We also aimed to determine the accuracy of the lever sign test compared with 3 other tests (anterior drawer, Lachman, and pivot shift) when performed by providers of various training levels, and with the patient awake or under anesthesia. Study Design: Cohort study (diagnosis); Level of evidence, 2. Methods: We evaluated patients with a chief concern of acute (≤4 weeks) knee pain seen between October 2014 and January 2015, with a thorough history, physical examination, and standard radiographs. MRI was the reference standard; patients without an MRI evaluation were excluded. The 4 physical examination maneuvers were performed on each symptomatic knee during the initial clinic visit (for nonsurgical patients) or under anesthesia in the operating room (for surgical patients) by a randomly assigned undergraduate student, medical student, orthopaedic resident, or orthopaedic fellow. The senior author trained all staff to perform the lever sign test. Statistical analyses were performed. Results: Of 102 patients, 54 were surgical (28 female, 26 male), and 48 were nonsurgical (16 female, 32 male); the mean patient age was 23 years (range, 15-66 years). The overall accuracy of the lever sign test was 77% (63% sensitivity, 90% specificity); the accuracy was similar between patients under anesthesia and awake (77% vs 76%, respectively). There were no significant differences when comparing the sensitivity and specificity of the lever sign test with patients under anesthesia and awake (sensitivity: under anesthesia, 86%, and awake, 68% [P = .40]; specificity: under anesthesia, 85%, and awake, 96% [P = .17]). Furthermore, the accuracy of the lever sign test was similar when performed on female versus male patients (75% vs 79%, respectively) or when performed by undergraduate students and medical students compared with orthopaedic residents and fellows (84% vs 88%, respectively). Conclusion: Our study results challenge the exceptional sensitivity and specificity values (both 100%) of the lever sign test, as reported by the original author of the test.
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Affiliation(s)
| | - David E Hartigan
- Department of Orthopedic Surgery, Mayo Clinic, Phoenix, Arizona, USA
| | - Kelly L Scott
- Department of Orthopedic Surgery, Mayo Clinic, Phoenix, Arizona, USA
| | - Karan A Patel
- Department of Orthopedic Surgery, Mayo Clinic, Phoenix, Arizona, USA
| | - Anikar Chhabra
- Department of Orthopedic Surgery, Mayo Clinic, Phoenix, Arizona, USA.,Arizona State University, Phoenix, Arizona, USA
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Mathew M, Dhollander A, Getgood A. Anterolateral Ligament Reconstruction or Extra-Articular Tenodesis: Why and When? Clin Sports Med 2017; 37:75-86. [PMID: 29173559 DOI: 10.1016/j.csm.2017.07.011] [Citation(s) in RCA: 36] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Residual rotational laxity following anterior cruciate ligament (ACL) reconstruction has been identified as significant concern in many patients, despite evolution of techniques. The expanding body of knowledge on the anatomy and biomechanics of the anterolateral soft tissue restraints in rotational control of the knee has reignited an interest in extra-articular reconstruction techniques for augmenting ACL reconstruction. Reconstruction techniques currently used can be broadly categorized as either lateral extra-articular tenodesis or reconstruction of the anterolateral ligament. In this article, we outline the relevant anatomy, biomechanics, and rationale behind the indications and technique of our current extra-articular augmentation procedure.
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Affiliation(s)
- Manoj Mathew
- The Fowler Kennedy Sport Medicine Clinic, University of Western Ontario, London, Ontario, Canada
| | - Aad Dhollander
- The Fowler Kennedy Sport Medicine Clinic, University of Western Ontario, London, Ontario, Canada
| | - Alan Getgood
- The Fowler Kennedy Sport Medicine Clinic, University of Western Ontario, London, Ontario, Canada.
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