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Biomechanical Changes at the Knee Joint between Pre- and Post-Operative Gait in Patients with ACL Injury

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Biomechanical Changes at the Knee Joint between Pre- and Post-Operative Gait in Patients with ACL Injury

Kohei Nishizawa, PhD, JAPAN Kengo Harato, MD, PhD, JAPAN Shu Kobayashi, MD, PhD, JAPAN Yasuo Niki, MD, PhD, JAPAN Takeo Nagura, MD, JAPAN

Department of Orthopedic Surgery, Keio University School of Medicine, Shinjuku, Tokyo, JAPAN

2023 Congress ePoster Presentation 2023 Congress Not yet rated

Anatomic Location

Knee

Anatomic Structure

Ligaments

Diagnosis / Condition

Tears

Treatment / Technique

Repair / Reconstruction Arthroscopy

Ligaments

ACL

Sports Medicine

Rehabilition / Physical Therapy Sport Specific Injuries Biomechanics

Summary: Hamstrings moment in terminal stance is important to improve gait asymmetry after ACL reconstruction.

Introduction

Anterior cruciate ligament (ACL) injury is one of the most devastating knee injuries for young athletes. Gait asymmetry is observed even in patients who have completed an adequate rehabilitation program after ACL reconstruction. An abnormal kinematics pattern leads to an increased risk of knee osteoarthritis. For example, stiffening strategy and pivot shift avoidance gait have been reported as gait modifications of anterior cruciate ligament disease (ACLD). Therefore, biomechanical asymmetry should be analyzed between pre-and post-operation in patients with ACL injury. We hypothesized that gait asymmetry would be improved postoperatively. The purpose of the present study was to investigate the asymmetry of gait biomechanics pre- and post-ACL reconstruction.

Methods

A total of 16 ACL injured subjects (8 females and 8 males, mean age = 29.2 ± 8.3 yrs, mean body mass index = 22.6 ± 2.2 kg/m2) participated in the present study. All subjects underwent ACL reconstruction by a single surgeon. Arthroscopically-assisted ACL reconstruction was performed using semitendinosus tendon. All subjects underwent the same rehabilitation protocol, partial weight-bearing exercises began 1 week after reconstruction and gradually increased to full weight bearing. Jogging was encouraged 3 months postoperatively and return to sport was permitted 8 months postoperatively. Subjects were well enough to walk pain-free at the time of gait analysis. The protocol of the present study was approved by the University Ethics Committee and written informed consent was obtained from each subject.
Gait analysis was performed at pre- and post-operative period (> 9 months). The three-dimensional motion analysis system consisted of eight cameras (120 fps; Oqus, Qualisys, Sweden), two force plates (frequency 600 Hz; AM6110, Bertec, Columbus, OH, USA), and 46 retroreflective markers (14 mm diameter). The force plate recorded ground reaction force (GRF) data at 600 Hz synchronized with the sampling rate of the camera (120 Hz). The biomechanical parameters were chosen during the stance phase defined as heel contact and toe-off. Marker tracking was performed using Qualisys Track Manager Software (version 2.7). Three-dimensional kinetic parameters were processed in Visual 3D (C-motion Company). Three-dimensional kinematic parameters were calculated using the point cluster method. For statistical analysis, biomechanical differences were compared between affected and unaffected side at pre- and post-operative period using two-tailed paired t-test. A significant difference was defined as a P value < 0.05.

Results

Gait analysis showed that knee internal rotation moment in the terminal stance was 0.13 (0.04) Nm/kg on the unaffected side and 0.08 (0.04) Nm/kg on the affected side preoperatively (P<0.05). However, at postoperative period, the difference of knee internal rotation moment was not significant. Interestingly, hamstring moment in terminal stance was -0.32 (0.09) Nm/kg on the unaffected side and -0.21 (0.13) Nm/kg on the affected side postoperatively. Hamstring moment in terminal stance was significantly smaller on the affected side compared to the unaffected side after the surgery.

DISCCUSION: Gait asymmetry continued especially in hamstring moment after the surgery even if pivot shift avoidance gait improved. As harvesting of semitendinosus tendon is necessary, postoperative rehabilitation should be focused on hamstring as well as quadriceps muscle.

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The Blumensaat Line on Radiograph as an Accurate Predictor of Native ACL Length ePoster Presentation Jeffrey Simpson, BS, UNITED STATES Joshua Cassinat, BS, UNITED STATES Frederic Baker Mills, MD, UNITED STATES Patrick Wakefield Joyner, MD, MS, UNITED STATES
Return to Sports in Anterior Cruciate Ligament Reconstruction Revision Surgery ePoster Presentation David H. Figueroa, MD, CHILE Maria Loreto Figueroa Berrios, MD, CHILE Alexandra Feuereisen, MD, CHILE Javier Ignacio González, MD, CHILE Rafael Calvo, MD, CHILE
Ideal Combination Of Anatomic Tibial And Femoral Tunnel Positions for Single-Bundle ACL Reconstruction ePoster Presentation Kyoung Ho Yoon, MD, PhD, Prof., KOREA, REPUBLIC OF Cheol Hee Park, MD, PhD, KOREA, REPUBLIC OF Sang-Gyun Kim, MD, PhD, KOREA, REPUBLIC OF Jae-Young Park, MD, KOREA, REPUBLIC OF Yoon-Seok Kim, MD, KOREA, REPUBLIC OF Hee Sung Lee, MD, KOREA, REPUBLIC OF Sung Hyun Hwang, MD, KOREA, REPUBLIC OF Dae Keun Suh, MD, PhD, KOREA, REPUBLIC OF Bo Seung Bae, MD, KOREA, REPUBLIC OF
ACL Repair Versus ACL Reconstruction: A Propensity Matched Study ePoster Presentation Adnan Saithna, MD, FRCS, UNITED STATES Alexandre Ferreira, MD, FRANCE Alessandro Carrozzo, MD, ITALY Sylvain Guy, MD, FRANCE Thais Dutra Vieira, MD, FRANCE Johannes Barth, MD, Prof., FRANCE Bertrand Sonnery-Cottet, MD, PhD, FRANCE
Femoral Button is Not Applied: Does It Matter ? ePoster Presentation Mohamed Amine Gharbi , MD, TUNISIA Moatassem Belleh Jelassi, MD, TUNISIA Ahmed Zendeoui, MD, TUNISIA Houssem Eddine Chahed, MD, TUNISIA Anis Tebourbi, MD, TUNISIA Ramzi Bouzidi, PhD, TUNISIA Khelil Ezzaouia, PhD, TUNISIA Mouadh Nefiss, MD, TUNISIA
Lower Socioeconomic Status Adversely Affects Timing of Care and Rate of Re-Injury Following Anterior Cruciate Ligament Reconstruction ePoster Presentation Eduardo J Natal-Albelo, MD, UNITED STATES Rachel E Cherelstein, BS, UNITED STATES Christopher M Kuenze, PhD, UNITED STATES Andrew Curley, MD, UNITED STATES Blake M. Bodendorfer, MD, UNITED STATES Mark Hopkins, MD, UNITED STATES Christine Conroy, MD, UNITED STATES Caroline Fryar, MD, UNITED STATES David X. Wang, MD, UNITED STATES Edward S. Chang, MD, UNITED STATES
Morphological Evaluation Of The Quadriceps Tendon Using Preoperative Ultrasound In Anterior Cruciate Ligament Reconstruction ePoster Presentation Satoshi Takeuchi, MD, PhD, JAPAN Kevin J Byrne, MD, UNITED STATES Ryo Kanto, MD, JAPAN Kentaro Onishi, DO, UNITED STATES
Steeper Lateral Posterior Tibial Slope And Greater Lateral-Medial Slope Asymmetry are Associated With Greater Preoperative Pivot-Shift In Anterior Cruciate Ligament Injury ePoster Presentation Kiminari Kataoka, MD, JAPAN Kanto Nagai, MD, PhD, JAPAN Yuichi Hoshino, MD, PhD, JAPAN Masashi Shimabukuro, JAPAN Kyohei Nishida , MD, PhD, JAPAN Noriyuki Kanzaki, MD, PhD, JAPAN Takehiko Matsushita, MD, PhD, JAPAN Ryosuke Kuroda, MD, PhD, JAPAN
Acceptable Clinical Outcomes Despite High Reoperation Rate at Minimum 12-Month Follow-Up after Concomitant Arthroscopically Assisted Anterior Cruciate Ligament Reconstruction and Medial Meniscal Allograft Transplantation ePoster Presentation Dhruv Sundar Shankar, BS, UNITED STATES Kinjal Vasavada, BA, UNITED STATES Amanda Avila, MPH, UNITED STATES Brittany DeClouette, MD, UNITED STATES Hadi Aziz, BS, UNITED STATES Eric Jason Strauss, MD Michael J Alaia, MD, UNITED STATES Laith M. Jazrawi, MD, UNITED STATES Guillem Gonzalez-Lomas, MD, UNITED STATES Kirk Anthony Campbell, MD, UNITED STATES
Effect of Intra-articular Drain on Pain in Postoperative Arthroscopic Anterior Cruciate Ligament Reconstruction: A Randomized control trial ePoster Presentation Artit Boonrod, MD, THAILAND Sarat Tiangwan, MD, THAILAND Aumjit Wittayapairoj, MD, , THAILAND Sermsak Sumanont, MD, THAILAND Punyawat Apiwatanakul, MD, THAILAND Khananut Jaruwanneechai, MD, THAILAND
Patellar Tendon Autograft is Associated with Difficulty Kneeling but Does Not Result in a More Painful or Symptomatic Knee Compared to Hamstring Tendon Autograft after Anterior Cruciate Ligament Reconstruction: Results from the New Zealand ACL Registry ePoster Presentation Richard Rahardja, MBChB, BMedSc(Hons), NEW ZEALAND Hamish Love, FRACS, NEW ZEALAND Mark G. Clatworthy, FRACS, NEW ZEALAND Simon W. Young, MD, FRACS, NEW ZEALAND
Respective Functions of the ACL and the Medial Structures on the Control of Anterior Translation and Rotations of the Knee. Cadaveric Study of 24 Knees with the Dyneelax® ePoster Presentation Henri E. Robert, MD, FRANCE Baptiste Guegan, FRANCE Harold Common, MD, FRANCE
Analysis of Patient Reported Outcomes and Subsequent Surgery Rate Following Quadriceps Tendon Anterior Cruciate Ligament Reconstruction and Lateral extra-articular Tenodesis in Skeletally Immature Patients: Two Year Follow-Up ePoster Presentation Sofia Hidalgo Perea, BS, UNITED STATES Danielle E. Chipman, BS, UNITED STATES Frank A. Cordasco, MD, MS, UNITED STATES Daniel W. Green, MD, MS, UNITED STATES
The Relationship of Non-Anatomical Tunnel Position and Revision Anterior Cruciate Ligament Reconstruction ePoster Presentation Burçin Karsli, MD, Assoc. Prof., TURKEY Erman Öğümsöğütlü, MD, TURKEY
Revision Anterior Cruciate Ligament Reconstruction with All Soft Tissue Quadriceps Tendon Autograft and Quadriceps Tendon Autograft with Bone Block Have Similar Clinical Outcomes ePoster Presentation Asher B Mirvish, BA, UNITED STATES Joshua C Setliff, BA, UNITED STATES Ehab M Nazzal, MD, UNITED STATES Nicholas P Drain, MD, UNITED STATES Zachary J Herman, MD, UNITED STATES Clair Smith, MSc, UNITED STATES Bryson P. Lesniak, MD, UNITED STATES Volker Musahl, MD, Prof., UNITED STATES Jonathan D Hughes, MD, PhD, UNITED STATES
Surgeon Volume Affects Revision Rate Following Primary Anterior Cruciate Ligament Reconstruction With Allograft ePoster Presentation Sahil Dadoo, BS, UNITED STATES Ian DeYoe Engler, MD, UNITED STATES Janina Kaarre, MD MSc, UNITED STATES Audrey Y. Chang, BA, UNITED STATES Michael Shannon, BS, UNITED STATES Laura Keeling, MD, UNITED STATES Volker Musahl, MD, Prof., UNITED STATES
Comparable Short-Term Clinical Outcomes In Rectangular-Tunnel Anterior Cruciate Ligament Reconstruction Using Quadriceps Tendon-Patellar Bone Autograft Over Round-Tunnel Reconstruction ePoster Presentation Do Weon Lee, MD, MS, KOREA, REPUBLIC OF Sang Yoon Kim, MD, KOREA, REPUBLIC OF Duhyun Ro, MD, Prof. , KOREA, REPUBLIC OF Myung Chul Lee, MD, PhD, Prof., KOREA, REPUBLIC OF Hyuk-Soo Han, MD, PhD, KOREA, REPUBLIC OF
Blumensaat’s Line Morphology Does Not Influence the Femoral Tunnel Position in Anatomical Double-Bundle ACL Reconstruction ePoster Presentation Yoshiyuki Yahagi, MD,PhD, JAPAN Takanori Iriuchishima, MD, PhD, JAPAN Keinosuke Ryu, Prof., JAPAN Kazuyoshi Nakanishi, Prof., JAPAN
Comparable Primary Stability Between Current-Generation Adjustable Loop Cortical Buttons for Anterior Cruciate Ligament Reconstruction – A Biomechanical Study ePoster Presentation Adrian Deichsel, MD, GERMANY Lara Leibrandt, cand. med., GERMANY Michael J. Raschke, MD, Prof., GERMANY Matthias Klimek, M. Sc., GERMANY Jens Wermers, Prof., GERMANY Christian Peez, MD, GERMANY Thorben Briese, MD, GERMANY Elmar Herbst, MD, PhD, GERMANY Christoph Kittl, MD, MD(res), GERMANY Johannes Glasbrenner, MD, GERMANY
Is Asymmetry of the Medial and Lateral Posterior Femoral Condyles Associated With ACL Rupture? A Case-Control Study of Pediatric Patients ePoster Presentation Nicolas Pascual-Leone, MD, UNITED STATES Danielle E. Chipman, BS, UNITED STATES Danielle S Gorelick, NP, UNITED STATES Peter D. Fabricant, MD, MPH, UNITED STATES Russell F. Warren, MD, UNITED STATES Douglas Mintz, MD, UNITED STATES Daniel W. Green, MD, MS, UNITED STATES
Primary ACL Reconstruction With Lateral Extra Articular Augmentation With Modified Lemaire Technique ePoster Presentation Horacio F. Rivarola-Etcheto, MD, ARGENTINA Cristian Carlos Collazo Blanchod, MD, ARGENTINA Marcos Meninato, MD, ARGENTINA Carlos Mendoza Puello, MD, ARGENTINA Marcos Palanconi, MD, ARGENTINA Marcelo Libertini, ARGENTINA
Contribution of Functional Knee Bracing to Joint Stability and Anterior Cruciate Ligament Function ePoster Presentation Sene Polamalu, BS, UNITED STATES Emre Anıl Özbek, MD, TURKEY Ehab M Nazzal, MD, UNITED STATES Gian Andrea Lucidi, MD, ITALY Andrew Sprague, PT, PhD, DPT, UNITED STATES Volker Musahl, MD, Prof., UNITED STATES Richard E Debski, PhD, UNITED STATES
The Statistical Fragility Of Clinical Trials Comparing Bone-Patellar Tendon-Bone Versus Hamstring Tendon Autografts In Anterior Cruciate Ligament Reconstruction Surgery: A Systematic Review ePoster Presentation Jeffrey Okewunmi, BS, UNITED STATES Zakaria Chakrani, BA, UNITED STATES John K Cordero, MD, UNITED STATES Robert L Parisien, MD, UNITED STATES
Time-Series Biological Responses Toward Decellularized Bovine Tendon Graft and Autograft for 52 Consecutive Weeks after Rat Anterior Cruciate Ligament Reconstruction ePoster Presentation Masafumi Itoh, MD, PhD, JAPAN Junya Itou, MD, PhD, JAPAN Umit Kuwa, MD, PhD, JAPAN Ken Okazaki, MD, PhD, JAPAN Kiyotaka Iwasaki, Prof, JAPAN
Clinical Outcomes and Return to Sport After Quadriceps Tendon Autograft ACL Reconstruction: Comparison to Bone-Patellar Tendon-Bone Autograft at a Minimum 2-Year Follow-Up ePoster Presentation Evan W. James, MD, UNITED STATES Dakota Adamec , BS , UNITED STATES Per-Henrik Randsborg, MD, PhD, NORWAY Joseph T. Nguyen, MPH, UNITED STATES Robert G. Marx, MD, UNITED STATES Answorth A. Allen, MD, UNITED STATES Frank A. Cordasco, MD, MS, UNITED STATES Benedict U. Nwachukwu, MD, MBA, UNITED STATES Danyal H. Nawabi, MD, FRCS(Orth), UNITED STATES
Effectiveness of Fibrin Clot Implantation for Reduction Of Bone Tunnel Enlargement In Bundle-Bundle ACL Reconstruction Using Autogenous Hamstring Tendon Grafts ePoster Presentation Nobuyoshi Suzuki, MD, JAPAN Tomoya Iseki, MD, PhD, JAPAN Shintaro Onishi, MD, PhD, JAPAN Ryo Kanto, MD, JAPAN Hiroshi Nakayama, MD., Ph.D., JAPAN Shinichi Yoshiya, MD, JAPAN Toshiya Tachibana, MD, PhD, JAPAN
Delaying ACL Reconstruction Increases the Rate and Severity of Medial Compartment Chondral Injury ePoster Presentation Nicolas Cance, MD, FRANCE Julien Erard, MD, FRANCE Jobe Shatrov, MD, AUSTRALIA Gaspard Fournier, MD, FRANCE Stanislas Gunst, MD, FRANCE Gianluca Ciolli, MD, ITALY Pasquale Porcelli, MD, ITALY Sebastien Lustig, MD, PhD, Prof., FRANCE Elvire Servien, MD, PhD, Prof., FRANCE
Non-Operative Treatment is an Excellent Option for Isolated Anterior Cruciate Ligament Injuries: a Systematic Review and Meta-Analysis ePoster Presentation Robert de Jonge, MD, HUNGARY Miklos Mate, MD, HUNGARY Norbert Kovacs, MD, HUNGARY Marcell Imrei, MD, , HUNGARY Karoly Pap, MD, PhD, HUNGARY Gergely Agocs, PhD, HUNGARY Peter Hegyi, Prof., HUNGARY Gergely Pánics, PhD, HUNGARY
No Single Dominant Risk Factor for Noncontact ACL Injury: Key Thresholds and Relative Contributions of Knee Geometry and Anterior-Posterior Laxity ePoster Presentation Jacob Zeitlin, BA, UNITED STATES Mark Alan Fontana, PhD, UNITED STATES Michael Parides, PhD, UNITED STATES Thomas L. Wickiewicz, MD, UNITED STATES Andrew D. Pearle, MD, UNITED STATES Danyal H. Nawabi, MD, FRCS(Orth), UNITED STATES Bruce D. Beynnon, PhD, UNITED STATES Carl W Imhauser, PhD, UNITED STATES
Decreased Time Between Injury and Surgery and Increased Injury Severity Predict Motion Loss After Multiligament Knee Injury, but Are Only Part of the Picture ePoster Presentation Cale A. Jacobs, PhD, UNITED STATES Kathleen Poploski, PhD, UNITED STATES Caitlin Conley, PhD, UNITED STATES Austin V Stone, MD, PhD, UNITED STATES Darren L. Johnson, MD, UNITED STATES Volker Musahl, MD, Prof., UNITED STATES James J. Irrgang, PT, PhD, FAPTA, UNITED STATES
Predictors of Joint Space at a Minimum 10 Years Following Single-Bundle Bone-Patellar Tendon-Bone ACL Reconstruction Using a Transtibial Technique ePoster Presentation Kevin D. Plancher, MD, MPH, UNITED STATES Karen Briggs, MPH, UNITED STATES Stephanie C. Petterson, MPT, PhD, UNITED STATES
All Soft Tissue Quadriceps Tendon Vs Quadriceps Tendon With Bone Block In Primary ACL Reconstruction ePoster Presentation Joshua C Setliff, BA, UNITED STATES Ehab M Nazzal, MD, UNITED STATES Nicholas P Drain, MD, UNITED STATES Zachary J Herman, MD, UNITED STATES Asher B Mirvish, BA, UNITED STATES Clair Smith, MSc, UNITED STATES Bryson P. Lesniak, MD, UNITED STATES Volker Musahl, MD, Prof., UNITED STATES Jonathan D Hughes, MD, PhD, UNITED STATES
Novel Arthrometer Provides Quantitative and Objective Measures of Uniplanar and Multiplanar Knee Laxity ePoster Presentation Erin Berube, MS, BS, UNITED STATES Akinola E Oladimeji, MD, UNITED STATES David Shamritsky, MEng, UNITED STATES Deborah Jones, PT, OCS, SCS, UNITED STATES Michael Parides, PhD, UNITED STATES Andrew D. Pearle, MD, UNITED STATES Danyal H. Nawabi, MD, FRCS(Orth), UNITED STATES Thomas L. Wickiewicz, MD, UNITED STATES Carl W Imhauser, PhD, UNITED STATES
Trends in Revision Anterior Cruciate Ligament Reconstruction and Return to Sport: A Survey of the Herodicus Society ePoster Presentation Michael Andrew Fox, MD, UNITED STATES Ian DeYoe Engler, MD, UNITED STATES Andrew Curley, MD, UNITED STATES Damaris Susana Mohr, PA-C, UNITED STATES Justin W. Arner, MD, UNITED STATES Volker Musahl, MD, Prof., UNITED STATES James P. Bradley, MD, UNITED STATES
Proprioceptive and Clinical Outcomes of Anterior Cruciate Ligament Reconstruction With Remnant Tissue Preservation Technique: A Comparison According to the Preserved Tissue Length ePoster Presentation Hasan Bombaci, Prof., TURKEY Bugra Basalan, MD, TURKEY Ozgul Ozturk, MD, TURKEY Onur Aydogdu, PhD, TURKEY Zübeyir Sarı, Prof, TURKEY
A Novel Quantitative Assessment of Bone Tendon Junction Healing in Patients after ACL Reconstruction by High Resolution Peripheral Computer Tomography: The Development of a Deep-Learning System ePoster Presentation Michael Tim Yun Ong, MBChB(UK), BSc(UK), MRCS(Edin), MSc(CUHK), FRCSEd, HONG KONG Patrick S. H. Yung, MBChB, FRCS(Orth), FHKCOS, FHKAM, FRCS, HONG KONG
Hamstring Allograft versus Autograft in Primary Anterior Cruciate Ligament Reconstruction ePoster Presentation Paul Ruckenstuhl, MD, Msc, AUSTRIA Patrick Sadoghi, MD, AUSTRIA Gerald Gruber, MD, Prof., AUSTRIA Andreas Leithner, MD, Prof., AUSTRIA Stefan Fischerauer, MD, MSc, PhD, AUSTRIA
Clinical and Social Predictors Of Surgical Treatment for ACL Injuries ePoster Presentation Miho J. Tanaka, MD, PhD, UNITED STATES Harrison Hubbell, BA, UNITED STATES Nadine Jackson McCleary, MD, MPF, UNITED STATES Endel John Orav, PhD, UNITED STATES
Clinical And Patient-Reported Outcomes Of Arthroscopic Repair Versus Reconstruction Of The Cruciate Ligaments In The Multiligamentous Injured Knee ePoster Presentation Sebastian Rilk, MD, UNITED STATES Gabriel C Goodhart, BsC, UNITED STATES Kurt S. Holuba, BA, UNITED STATES Harmen D. Vermeijden, MD, UNITED STATES Robert O'Brien, MHS, PA-C, UNITED STATES Jelle P. van der List, MD, PhD, NETHERLANDS Gregory S. Difelice, MD, UNITED STATES
No Evidence of Racial Disparities in Revision Risk Following ACL Reconstruction in a Single Healthcare Network Despite Increased Social Disadvantage Among Black Patients ePoster Presentation Ian DeYoe Engler, MD, UNITED STATES Sahil Dadoo, BS, UNITED STATES William T. Li, MD, UNITED STATES Robert Tisherman, UNITED STATES Audrey Y. Chang, BA, UNITED STATES Volker Musahl, MD, Prof., UNITED STATES
Peri-Operative Complications, Safety, and Early Outcomes of a Novel ACL + ALL Reconstruction Technique Using Iliotibial Band Autograft vs. Patellar Tendon ACL Reconstruction: A Retrospective Pilot Study of the Saturn Study Group ePoster Presentation Ben E. Heyworth, MD, UNITED STATES Joshua H. Pang, BA, UNITED STATES Yi-Meng Yen, MD, UNITED STATES Dennis Kramer, MD Mininder Kocher, MD, MPH, UNITED STATES
Radiographic Evaluation Of the Donor Site After Anterior Cruciate Ligament Reconstruction With Quadriceps Tendon Bone By Using T2 Mapping Mri ePoster Presentation Shuko Tsumoto, MD, JAPAN Yusuke Hashimoto, MD, PhD, JAPAN Ken Iida, MD, JAPAN Hiroaki Nakamura, MD, PhD, JAPAN
Bone–Patellar Tendon–Bone Autograft and Female Sex are Associated with the Presence of Cyclops Lesions and Syndrome After Anterior Cruciate Ligament Reconstruction ePoster Presentation Tomohiro Tomihara, MD, JAPAN Yusuke Hashimoto, MD, PhD, JAPAN Kazuya Nishino, MD, JAPAN Shuko Tsumoto, MD, JAPAN
Investigation of the Effect Of Anterior Cruciate Ligament Injury on the Axial Rotation of the Knee Joint ePoster Presentation Kenjiro Okimura, JAPAN Yuichi Hoshino, MD, PhD, JAPAN Kyohei Nishida , MD, PhD, JAPAN Kanto Nagai, MD, PhD, JAPAN Noriyuki Kanzaki, MD, PhD, JAPAN Takehiko Matsushita, MD, PhD, JAPAN Ryosuke Kuroda, MD, PhD, JAPAN
Sex-Based Difference of the Most Common Autograft Sources for ACL Reconstruction Measured on Knee MRI ePoster Presentation Giovanna Medina, MD, MSc, PhD, UNITED STATES Maria Virginia Velasquez-Hammerle, MD, UNITED STATES Miho J. Tanaka, MD, PhD, UNITED STATES
Quadriceps Autograft Is A Viable Graft Choice For ACL Reconstruction In Patients Over 50 Years Old ePoster Presentation Amit Meena, MBBS, MS, DNB, INDIA Luca Farinelli, MD, ITALY Christian Hoser, MD, AUSTRIA Elisabeth Abermann, MD, AUSTRIA Mirco Herbort, MD, Prof., GERMANY Christian Fink, MD, Prof., AUSTRIA
Automated, Video-Based Analysis of Motion Patterns to Diagnose Anterior Cruciate Ligament Injuries in In-Game Video Footage ePoster Presentation Attila Schulc, UNITED STATES Chilan Leite, MD, PhD, UNITED STATES Máté Csákvári, UNITED STATES Luke Lattermann, UNITED STATES Molly Zgoda, MS, UNITED STATES Evan M Farina, MD, UNITED STATES Christian Lattermann, MD, UNITED STATES Zoltán Tősér, UNITED STATES Gergo B Merkely, MD, PhD, UNITED STATES
Anterior Cruciate Ligament Repair Using Dynamic Intraligamentary Stabilization Provides a Similarly Successful Outcome As All-Inside Anterior Cruciate Ligament Reconstruction With A Faster Psychological Recovery In Moderately Active Patients ePoster Presentation Mahmut Enes Kayaalp, MD, TURKEY Serkan Surucu, MD, UNITED STATES Mehmet Halis Çerçi, MD, TURKEY Mahmud Aydın, MD, TURKEY Mahir Mahirogullari, MD, Prof., TURKEY
Effect of The Tibial Tunnel Communication on the Bone-Tendon Healing and Location of the Graft at the Tibial Tunnel Aperture in The Double-Bundle Anterior Cruciate Ligament Reconstruction ePoster Presentation Naoto Suzue, MD, PhD, JAPAN Yoshitsugu Takeda, MD, PhD, JAPAN
Factors Associated with Tunnel Widening After ACL Reconstruction ePoster Presentation Garrett Kearney, Resident/Fellow, UNITED STATES Maxwell Mckay, Bachelors Degree, UNITED STATES Peter Asnis, MD, UNITED STATES Lars C Richardson, MD, UNITED STATES Mark David Price, MD, UNITED STATES Miho J. Tanaka, MD, PhD, UNITED STATES
Quad Versus Patella Tendon Autograft for Anterior Cruciate Ligament Reconstruction In Young Athletes ePoster Presentation Cory Riccio, MD, UNITED STATES Nathan Fackler, MD, UNITED STATES Christopher M Kuenze, PhD, UNITED STATES Tarun Vippa, BS, UNITED STATES Sarah Powell, MD, UNITED STATES Rachel E Cherelstein, BS, UNITED STATES Edward S. Chang, MD, UNITED STATES
Outcomes of Isolated HTO and Simultaneous HTO and ACL Reconstruction: A Systematic Review & Meta-Analysis ePoster Presentation Varun Dewan, MBChB MSc FRCS, UNITED KINGDOM Lebur Rohman, MBBS, MRCS, FRCSEd, UNITED KINGDOM Martyn Snow, FRCS, UNITED KINGDOM
Changes in Cross-Sectional Area After the Anatomic ACL Reconstruction with Hamstring Tendon or Bone-atellar tendon autografts. ePoster Presentation Kazutaka Kinugasa, MD, PhD, JAPAN Masayuki Hamada, MD, JAPAN Yasukazu Yonetani, MD, PhD, JAPAN Akira Tsujii, MD, PhD, JAPAN Tomohiko Matsuo, MD, PhD, JAPAN Yoshinari Tanaka, MD, PhD, JAPAN Yuta Tachibana, M.D., Ph.D., JAPAN Ryohei Uchida, MD, PhD, JAPAN Konsei Shino, MD, PhD, JAPAN
Reliability of the KNEELAX3 Arthrometer for Anterior Knee Laxity Measurement in Healthy Female Subjects ePoster Presentation Azusa Saito, PT,BSc, JAPAN Shota Mashimo, PT, BSc, JAPAN Junya Kubota, PT, BSc, JAPAN Hiroyuki Sato, PT, BSc, JAPAN Fumiya Naonaga, PT,BSc, JAPAN Keita Tanaka, PT, BSc, JAPAN Erina Murosaki, PT,BSc, JAPAN Nobuto Kitamura, MD, PhD, JAPAN
Midterm Clinical Outcomes and Knee Stability After ACL Reconstruction With a Hybrid Graft Using Hamstring Autograft and Ligament Augmentation and Reconstruction System LARS ePoster Presentation Antonios T. Kouzelis, MD, PhD, GREECE Andreas Panagopoulos, Professor , GREECE Panagiotis Antzoulas, MD, MSc, cPhD, GREECE Panagiotis Tsiplakos, MD, GREECE Georgios Sinos, MD, GREECE Spyridon Papagiannis, MD, GREECE Ioannis Gliatis, MD, PhD, Assistant Proffessor, GREECE
Radiographic Tibial Tunnel Assessment After Anterior Cruciate Ligament Reconstruction Using Hamstring Tendon Autografts and Biocomposite Screws: A Prospective Study with 10-Year Follow-up ePoster Presentation Sadesh Balasingam, MD, SWEDEN Ioannis Karikis, SWEDEN Lars Christensen, MD, SWEDEN Mattias Ahldén, MD, SWEDEN Ninni Sernert, PhD, RPT, SWEDEN Jüri T. Kartus, MD, PhD, SWEDEN
Technology Assisted Anterior Cruciate Ligament Reconstruction Improves Tunnel Placement but Leads to No Change in Clinical Outcomes: A Systematic Review and Meta-Analysis ePoster Presentation Ehsan Yavari, HBSc, CANADA Sabreena Moosa, HBSc, CANADA Dan Cohen, MD, CANADA Darren L. de SA, MD MBA FRCSC, CANADA
Bioabsorbable Interference Screw Fixation for ACL Reconstruction Yields No Tunnel Widening With Excellent Outcomes ePoster Presentation Kevin D. Plancher, MD, MPH, UNITED STATES Karen Briggs, MPH, UNITED STATES Stephanie C. Petterson, MPT, PhD, UNITED STATES
Risk Factor Of Failure After The Revision Anterior Cruciate Ligament Reconstruction ePoster Presentation Takeo Tokura, MD, JAPAN Takehiko Matsushita, MD, PhD, JAPAN Kyohei Nishida , MD, PhD, JAPAN Kanto Nagai, MD, PhD, JAPAN Noriyuki Kanzaki, MD, PhD, JAPAN Yuichi Hoshino, MD, PhD, JAPAN Ryosuke Kuroda, MD, PhD, JAPAN
Short-Term Clinical Outcomes of Remnant-Preserving Single-Bundle Augmentation in Anterior Cruciate Ligament Reconstruction: Comparison with Single- and Double-Bundle Reconstruction ePoster Presentation Mariko Osugi, MD, JAPAN Atsuo Nakamae, MD, PhD, JAPAN Kazuhiro Tsukisaka, MD, , JAPAN Masataka Deie, MD, PhD, Prof., JAPAN Nobuo Adachi, MD, PhD, JAPAN
Postoperative MRI following QT- ACLR and its Relevance for Rehabilitation ePoster Presentation Magdalena Stawinska, MPT, POLAND Marcin Plenzler, MPT, POLAND Robert Smigielski, MD, PhD, POLAND Beata Ciszkowska-Lyson, PhD, POLAND
Transtibial Femoral Tunnel Technique In ACL Reconstruction and Osteoarthritis Incidence ePoster Presentation Marcus Vinicius Danieli, MD, PhD, BRAZIL João P.F. Guerreiro, MD, PhD, BRAZIL Joao Vitor Guedes Guedes Suzze, MD, BRAZIL Victoria de Abreu, MD, BRAZIL
Fear Of Reinjury Following Primary Anterior Cruciate Ligament Reconstruction (ACLR): A Systematic Review ePoster Presentation Basit Mir, MB, BcH, BAO, LRCP and Si, CANADA Prushoth Vivekanantha, MD, CANADA Saihaj Dhillon, BHSc, CANADA Odette Cotnareanu, BSc, CANADA Dan Cohen, MD, CANADA Kanto Nagai, MD, PhD, JAPAN Darren L. de SA, MD MBA FRCSC, CANADA
Healing Trajectory of The Patellar Tendon After Anterior Cruciate Ligament Reconstruction With Bone-Patellar Tendon-Bone Autograft ePoster Presentation Naoaki Ito, PT, DPT, PhD, UNITED STATES Haraldur Sigurðsson, PT, MSc, PhD, ICELAND Lynn Snyder-Mackler, PT, ScD, FAPTA, UNITED STATES Karin Grävare Silbernagel, PT, PhD, ATC, UNITED STATES
Is There Any Benefit In Anterior Cruciate Ligament Reconstruction In Patients Over 60 Years Old? ePoster Presentation Panagiotis G. Ntagiopoulos, MD, PhD, GREECE Paolo Ferrua, MD, ITALY Guillaume Demey, MD, FRANCE David H. Dejour, MD, FRANCE
The Lateral Femoral Notch Sign Decreases in Pediatric Patients Following Anterior Cruciate Ligament Reconstruction ePoster Presentation Nicolas Pascual-Leone, MD, UNITED STATES Danielle E. Chipman, BS, UNITED STATES Douglas Mintz, MD, UNITED STATES Frank A. Cordasco, MD, MS, UNITED STATES Peter D. Fabricant, MD, MPH, UNITED STATES Daniel W. Green, MD, MS, UNITED STATES
Optimal Joint Loading Strategies to Lessen Cartilage Changes after ACL Reconstruction Differ Throughout the Postoperative Recovery ePoster Presentation Dalton House, BS, UNITED STATES Sawyer Blair, BS, UNITED STATES Cale A. Jacobs, PhD, UNITED STATES Caitlin Conley, PhD, UNITED STATES Darren L. Johnson, MD, UNITED STATES Austin V Stone, MD, PhD, UNITED STATES
Static Anterior Tibial Translation After Anatomic ACLR: An MRI Analysis ePoster Presentation Ignacio Garcia-Mansilla, MD, ARGENTINA Fernando Holc, MD, ARGENTINA Ignacio Astore, MD, ARGENTINA Camila Juana, MD, ARGENTINA Juan Pablo Zicaro, MD, ARGENTINA Carlos H. Yacuzzi, MD, ARGENTINA Matias Costa-Paz, MD, PhD, ARGENTINA
Comparing Safety and Physical Activity Profiles of Institutional Standard of Care Versus Arthroscopic Electrocautery Approaches for ACL Reconstruction ePoster Presentation Claire Giachino, BA, UNITED STATES Hannah Rossing, BS, UNITED STATES David Howell, PhD, UNITED STATES Curtis D. Vandenberg, MD, UNITED STATES Jay C. Albright, MD, UNITED STATES
Concomitant Chondral Injury and ACL Reconstruction ePoster Presentation Emily Schueppert, BS, UNITED STATES S. Ali Ghasemi, MD, UNITED STATES Diannemarie Omire-Mayor, MD, UNITED STATES Arthur R Bartolozzi, MD, UNITED STATES
Mid-Term Results of Anterior Cruciate Ligament Reconstruction with Anterolateral Augmentation, Lemaire Tenodesis, in Soccer Players. Functional Results and Return to Play ePoster Presentation Pedro Alvarez-Diaz, MD, PhD, Prof., SPAIN Enrique Pavez, MD, CHILE Gilbert Steinbacher, MD, SPAIN Eduard Alentorn-Geli, MD, PhD, MSc, FEBOT, FACGME, SPAIN David Barastegui, MD, PhD, MSc, SPAIN Jorge Ramirez Haua, MD, SPAIN Maria Victoria Pomenta, MD, SPAIN Esther Sala, MD, SPAIN Sebatian Grossi, MD, SPAIN Aleix Pons Bartroli, MD , SPAIN Patricia Laiz Boada, BSc, SPAIN Ramon Cugat Bertomeu, MD, PhD, SPAIN
No tourniquet reduces the incidence of asymptomatic deep venous thrombosis identified on ultrasonography after arthroscopic anterior cruciate ligament reconstruction: an observational study ePoster Presentation Masaki Nagashima, MD, PhD, Prof., JAPAN Ryo Sasaki, MD, PhD, JAPAN Kentaro Tanaka, MD, JAPAN Kenichiro Takeshima, MD, JAPAN Ken Ishii, MD, PhD, JAPAN
Low Failure Rate In A Young Cohort Of Patients Undergoing Anterior Cruciate Ligament Reconstruction With Quadriceps Tendon is Independent of Graft Fixation Methods ePoster Presentation Sahil Dadoo, BS, UNITED STATES Zachary J Herman, MD, UNITED STATES Nicholas P Drain, MD, UNITED STATES Ehab M Nazzal, MD, UNITED STATES Raghav Ramraj, BS, UNITED STATES Fritz Steuer, BS, UNITED STATES Bryson P. Lesniak, MD, UNITED STATES Volker Musahl, MD, Prof., UNITED STATES Jonathan D Hughes, MD, PhD, UNITED STATES
A Comparison of Postoperative Outcomes Between Internal Brace Augmented and Non-Augment Hamstring Tendon Autograft Anterior Cruciate Ligament Reconstruction (ACLR) ePoster Presentation Maria Melanie Legaspi Valbuena, MD, MBA, PHILIPPINES Raphael Coligado Jurilla, MD, PHILIPPINES Patrick How, PHILIPPINES Jason Paul Santiago, MD, PHILIPPINES
Accuracy and reliability of Ultrasound-assisted Lachman Test in Diagnosing Anterior Cruciate Ligament Injuries ePoster Presentation Yuzuru Sakakibara, MD, PhD, JAPAN Vasundhara Mathur, MD, UNITED STATES David O Osei-Hwedieh, MD, UNITED STATES Rohan Bhimani, MD, MBA, UNITED STATES Soheil Ashkani-Esfahani, MD, UNITED STATES Miho J. Tanaka, MD, PhD, UNITED STATES
Posterior Tibial Plateau Compression Fractures Coinciding with ACL Injury: Means of Identification, Treatment Decision-Making Process and Clinical Relevance of Proposed MRI-Based Classification System ePoster Presentation Robert Smigielski, MD, PhD, POLAND Beata Ciszkowska-Lyson, PhD, POLAND Aleksandra Zielinska, MA, BSc, POLAND Christian Fink, MD, Prof., AUSTRIA Mirco Herbort, MD, Prof., GERMANY
Adductor Canal Block is Superior to Femoral Nerve Block for Early Postoperative Pain Relief after Single Bundle Anterior Cruciate Ligament Reconstruction with Hamstring Autograft ePoster Presentation Takeshi Oshima, MD, PhD, JAPAN Junsuke Nakase, MD, PhD, JAPAN Kengo Shimozaki, MD, JAPAN Rikuto Yoshimizu, JAPAN Mitsuhiro Kimura, JAPAN Tomoyuki Kanayama, MD, JAPAN Yusuke Yanatori, MD, JAPAN Hiroyuki Tsuchiya, JAPAN
Role of Biophysic Stimulation with Pulsed Electromagnetic Fields on Bone Bruise in Anterior Cruciate Ligament Reconstruction ePoster Presentation Vito Gaetano Rinaldi, MD, ITALY Iacopo Sassoli, MD, ITALY Matteo La Verde, MD, ITALY Eugenio Cammisa, MD, ITALY Federico Coliva, MD, ITALY Alberto Fogacci, MD, ITALY Giada Lullini, MD, PhD, ITALY Stefano Zaffagnini, MD, Prof., ITALY Giulio Maria Marcheggiani Muccioli, MD, PhD, Associate Professor, ITALY
The Effect of Delaying Anterior Cruciate Ligament Reconstruction More Than 3 or 6 Months on Revision Rates and Knee Stability After 2 Years of Follow-up ePoster Presentation Helena Amstrup Jensen, BSc, DENMARK Torsten Grønbech Nielsen, PhD., DENMARK Martin Lind, MD, PhD, Prof., DENMARK
Posterior Displacement Of The Detached Meniscocapsular Ligament Of Ramp Lesion In ACL Injured Knee Observed On MRI In Flexed Knee Position Is Associated With Greater Preoperative Anterior Knee Laxity ePoster Presentation Satoshi Nonaka, MD, JAPAN Kazuhisa Hatayama, MD, PhD, JAPAN Hibiki Kakiage, MD, JAPAN Masanori Terauchi, MD, JAPAN
Spin in the Abstracts of Meta-Analyses and Systematic Reviews: Quadriceps Tendon Graft for Anterior Cruciate Ligament Reconstruction ePoster Presentation Matthew T Gulbrandsen, MD, UNITED STATES Taha Taka, BS, UNITED STATES Joshua Peterson, BS, UNITED STATES Jun Ho Chung, MD, UNITED STATES Hasan Syed, MD Austin V Stone, MD, PhD, UNITED STATES John Xerogeanes, MD, UNITED STATES Joseph N. Liu, MD, UNITED STATES
Cross-Sectional in Vivo Biomechanical Effects of Meniscus Tears in Anterior Cruciate Ligament-Deficient Knees Versus Isolated Anterior Cruciate Ligament Tears: A Systematic Review of Motion Analysis Studies ePoster Presentation Enzo Salviato Mameri, MD, MSc, BRAZIL Garrett Jackson, MD, UNITED STATES Harkirat Jawanda, BS, UNITED STATES Jonathan A Gustafson, PhD, UNITED STATES Leonardo Metsavaht, MD PhD, BRAZIL Jorge Chahla, MD, PhD, UNITED STATES
Contralateral ACL Rupture is More Common than ACL Graft Rupture in Australian Netballers After ACL Reconstruction ePoster Presentation Conor Honeywill, MD, B. Phty, AUSTRALIA Lucy J. Salmon, PhD, AUSTRALIA Leo A. Pinczewski, MBBS, FRACS, FAOA, AUSTRALIA Keran Sundaraj, MBBS MCs (Trauma) FRACS FAOA, AUSTRALIA Justin P. Roe, MB BS BSc(Med) Hons, A/Prof., AUSTRALIA
Clinical and Functional Outcomes of Augmented Repair Versus Primary Repair in Anterior Cruciate Ligament Injury: A Systematic Review and Meta-Analysis ePoster Presentation Bing Howe Lee, MBBS, MRCS, SINGAPORE Michael Xuanrong Shen, MBBS, MRCS, MMED, SINGAPORE Mohammad Ashik, MBBS, MRCSEd, MMed (Ortho), FRCSEd(Orth), SINGAPORE Hamid Rahmatullah Bin Abd Razak, MBBS, FRCSEd (Ortho), FRCSGlasg (Tr & Orth), FAMS, SINGAPORE
Impact of ACLR Graft Choice on Meniscal Repair Outcomes ePoster Presentation Emily Coffey-Noriega , BS, UNITED STATES Amogh Iyer, BS, UNITED STATES Parker Cavendish, BS, UNITED STATES Eric Milliron, BS, UNITED STATES Spencer E. Talentino, MD, UNITED STATES James C. Kirven, BS, UNITED STATES Charles Qin, MD, UNITED STATES Ryan H. Barnes, MD, UNITED STATES David C. Flanigan, MD, UNITED STATES Robert A Magnussen, MD, MPH, UNITED STATES
Outcomes of Anterior Cruciate Reconstruction With Full-Thickness Peroneus Longus Tendon Autograft ePoster Presentation Tarun Goyal, MBBS, MS, DNB, MCh, FRCS (Edin), INDIA Souvik Paul, MBBS, MS Orthopedics (AIIMS), DNB, MCh, Dip SICOT, INDIA
The PCL-PCA Angle: A New Simple and Reliable MRI Method to Describe Anterior Tibial Translation in ACL-Deficient Knees ePoster Presentation Romain Seil, MD, Prof., LUXEMBOURG Renaud Siboni, MD, PhD student, FRANCE Charles Pioger, MD, FRANCE Caroline Mouton, PhD, LUXEMBOURG
Anatomic ACL Reconstruction with Quadriceps Tendon Graft Resulted in Equivalent Knee Laxity Compared to Hamstring Tendon Graft ePoster Presentation Katrin Karpinski, MD, GERMANY Martin Häner, MD, GERMANY Theresa Diermeier, MD, GERMANY Wolf Petersen, MD, Prof, GERMANY
Short-Term Outcomes of All-Inside Anterior Cruciate Ligament Reconstruction by the Trans-Femoral Approach ePoster Presentation Toshiaki Takahashi, MD, PhD, Prof., JAPAN Seiji Watanabe, MD, JAPAN
Double Bundle ACL Revision Reconstruction with Allograft Resulted In a Low Revision Rate At 10 Year ePoster Presentation Luca Macchiarola, MD, ITALY Nicola Pizza, MD, ITALY Alberto Grassi, PhD, ITALY Giacomo Dal Fabbro, ITALY Stefano Zaffagnini, MD, Prof., ITALY
A Retrospective Study of Prevalence of Intra-Articular Comorbidities Associated with ACL Tear and its Relationship with Patient-Age and Chronicity of the ACL Tear ePoster Presentation Vishwesh Devendrasinh Chudasama, M.S. (ORTHO), INDIA Vishvas Modi, M.S. (ORTHO), INDIA Deepak Goyal, MBBS, MS(Ortho), DNB(Ortho), Prof, INDIA
Urinary CTX-II, Serum MMP-3 And Serum PIIANP Following Anterior Cruciate Ligament Reconstruction: A Pilot Study ePoster Presentation Lachlan Batty, FRACS, AUSTRALIA Julian A. Feller, FRACS, FAOrthA, AUSTRALIA Timothy S. Whitehead, MBBS, FRACS, AUSTRALIA Brian M. Devitt, MD, PhD, FRCS, FRACS, IRELAND Kate E. Webster, PhD, AUSTRALIA
The Effect of Laterality on Patient Outcomes in Mulitligamentous Knee Injury ePoster Presentation Thomas M. Geissler, BS, UNITED STATES Jacob T. Hall, MD, UNITED STATES Jonathan Campbell, MD, UNITED STATES
Clinical Outcome Of Bicruciate Ligament Reconstruction In Multiple Knee Ligament Injuries: Comparison With Bicruciate And Collateral Ligament Reconstructions ePoster Presentation Zenta Jotoku, MD, PhD, JAPAN Eiji Kondo, MD, PhD, JAPAN Koji Iwasaki, MD, PhD, JAPAN Tomohiro Onodera, MD, PhD, JAPAN Daisuke Momma, PhD, JAPAN Kazunori Yasuda, MD, PhD, Prof., JAPAN Norimasa Iwasaki, MD, PhD, JAPAN

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Biomechanical Changes at the Knee Joint between Pre- and Post-Operative Gait in Patients with ACL Injury

Biomechanical Changes at the Knee Joint between Pre- and Post-Operative Gait in Patients with ACL Injury

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Biomechanical Changes at the Knee Joint between Pre- and Post-Operative Gait in Patients with ACL Injury

Biomechanical Changes at the Knee Joint between Pre- and Post-Operative Gait in Patients with ACL Injury

Introduction

Methods

Results