Summary: The ramp lesion gap on MRI 120º flexed knee position was associated with joint effusion and greater anterior knee laxity, but not the size of the lesion.

Purpose

To confirm whether posterior displacement of the detached meniscocapsular structure in the ramp lesion could be observed on magnetic resonance images (MRI) in the flexed knee position and to investigate whether posterior displacement of the meniscocapsular structure on MRI in flexed knee position is associated with preoperative greater anterior knee laxity.

Methods

Forty anterior cruciate ligament (ACL) injury patients for whom an attendant ramp lesion was observed on preoperative MRI were included in this study. All subjects received 3-T MRI at 120º of knee flexion before surgery. The gap distance of the ramp lesion on sagittal slices was measured, and a distance greater than 1 mm was classified as gap positive. Also, the presence of effusion pooled in the posteromedial recess was evaluated. Before surgery the side-to-side difference (SSD) in anterior tibial translation (ATT) on stress radiographs at 20º of knee flexion was measured to evaluate anterior knee laxity. During ACL reconstruction, a ramp lesion was found in all knees on a trans-notch view. The length of the ramp lesion was measured using a scale from the posteromedial portal.

Results

Nineteen of 40 knees had ramp lesion gaps greater than 1 mm on MRI at 120º of knee flexion. The mean ramp lesion gap distance was 3.3 ± 2.0 (range, 1.0 to 7.1) mm. There was no significant difference in the size of ramp lesion between gap-positive and gap-negative group (15.2 ± 4.8 mm vs 13.2 ± 4.4 mm; p<0.17). SSD in ATT on stress radiographs in the gap-positive group was significantly greater than that in the gap-negative group (8.7 ± 4.2 mm vs. 6.0 ± 4.0 mm; p<0.05). Fourteen of 19 in gap-positive group had posterior joint effusion on 120º flexed MRI, and none of 21 in gap-negative group had joint effusion. Gap-positive group had significantly higher number of joint effusion than gap-negative group (p<0.01).

Conclusions

The ramp lesion gap on MRI 120º flexed knee position was associated with joint effusion and greater anterior knee laxity, but not the size of the lesion. The necessity for suture repair of ramp lesions should be judged by the instability of the meniscocapsular ligament in the ramp lesion to avoid residual knee instability.

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Elevated Posterior Tibial Slope is Associated with Anterior Cruciate Ligament Reconstruction Failures: A Systematic Review and Meta-Analysis ePoster Presentation Benjamin Ormseth, BS, UNITED STATES Jeremy Adelstein, BS, UNITED STATES Andrew Garrone, MD, UNITED STATES Alex C. Dibartola, MD, MPH, UNITED STATES Ryan H. Barnes, MD, UNITED STATES Charles Qin, MD, UNITED STATES Christopher C. Kaeding, MD, UNITED STATES David C. Flanigan, MD, UNITED STATES Robert Siston, PhD, UNITED STATES Robert A Magnussen, MD, MPH, UNITED STATES Robert A. Duerr, MD, UNITED STATES
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, Associate Professor, GREECE Panagiotis Antzoulas, MD, MSc, GREECE Panagiotis Tsiplakos, MD, GREECE Georgios Sinos, MD, GREECE Spyridon Papagiannis, MD, GREECE Ioannis Gliatis, MD, PhD, Assistant Proffessor, GREECE
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
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
Comparison of Clinical Outcomes between a Bone-Patellar Tendon-Bone and Quadriceps Tendon-Bone Autografts in Anatomic Rectangular Tunnel Anterior Cruciate Ligament Reconstruction ePoster Presentation Kazunori Shimomura, MD, PhD, Prof., JAPAN Yasukazu Yonetani, MD, PhD, JAPAN Ayaka Tanaka, MD, JAPAN Akira Tsujii, MD, PhD, JAPAN Masayuki Hamada, MD, JAPAN
Delaying ACL Reconstruction Increases the Rate and Severity of Medial Compartment Chondral Injury ePoster Presentation Nicolas Cance, Resident, 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, FRANCE Elvire Servien, MD, PhD, Prof., FRANCE
Comparison of the Tissue Molecular Profile Of ACL Repair, ACL Reconstruction, and Native ACL ePoster Presentation Edoardo Monaco, MD, ITALY Danilo Ranieri, MD, ITALY Alessandro Annibaldi, MD, ITALY Alessandro Carrozzo, MD, ITALY Fabio Marzilli, MD, ITALY Vincenzo Visco, Prof., ITALY Andrea Ferretti, Prof., ITALY
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
Biomechanical Changes at the Knee Joint between Pre- and Post-Operative Gait in Patients with ACL Injury ePoster Presentation Kohei Nishizawa, PhD, JAPAN Kengo Harato, MD, PhD, JAPAN Shu Kobayashi, MD, PhD, JAPAN Yasuo Niki, MD, PhD, JAPAN Takeo Nagura, MD, JAPAN
No Difference in Clinical Outcomes Between Aperture And Suspensory Femoral-Sided Fixation Following Anterior Cruciate Ligament Reconstruction with Bone-Patellar Tendon-Bone Autograft ePoster Presentation Garrison Hughes, BS, UNITED STATES Cory Riccio, MD, UNITED STATES Tarun Vippa, BS, UNITED STATES Christopher M Kuenze, PhD, UNITED STATES Rachel E Cherelstein, BS, UNITED STATES Mitchell A Nader, , UNITED STATES Laura Keeling, MD, UNITED STATES Theodore N Rudic, BS, UNITED STATES Kory BD Pasko, BS, UNITED STATES Edward S. Chang, MD, UNITED STATES
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
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
Factors Associated with Knee Extension Strength Symmetry Following Anterior Cruciate Ligament Reconstruction with Quadriceps Tendon Autograft ePoster Presentation Justin James Greiner, MD, UNITED STATES Nicholas P Drain, MD, UNITED STATES Joshua C Setliff, BA, UNITED STATES Romano Sebastiani, BS, UNITED STATES Zachary J Herman, MD, UNITED STATES Volker Musahl, MD, Prof., UNITED STATES Bryson P. Lesniak, MD, UNITED STATES Jonathan D Hughes, 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
Injury to Anterolateral Ligament and Kaplan Fibers Do Not Significantly Affect Preoperative Pivot-shift Test in Anterior Cruciate Ligament Injury ePoster Presentation Takeo Tokura, MD, JAPAN Kanto Nagai, MD, PhD, JAPAN Yuichi Hoshino, MD, PhD, JAPAN Shu Watanabe, MD, JAPAN Kyohei Nishida , MD, PhD, JAPAN Noriyuki Kanzaki, MD, PhD, JAPAN Takehiko Matsushita, MD, PhD, JAPAN Ryosuke Kuroda, MD, PhD, JAPAN
Differences in Temporospatial Hop Characteristics Between Limbs at Return to Sport After ACL Reconstruction ePoster Presentation Alex Gabriel Gavia, BS, UNITED STATES Dave Werner, PT, DPT, OCS, CSCS, UNITED STATES Michael Wellsandt, PT, DPT, UNITED STATES Michael Rosenthal, UNITED STATES Matthew Tao, MD, UNITED STATES Elizabeth Wellsandt, DPT, PhD, UNITED STATES
A Prospective Comparison of Postoperative Pain and Opioid Consumption between Primary Repair and Reconstruction of the Anterior Cruciate Ligament ePoster Presentation Sebastian Rilk, MD, UNITED STATES Harmen D. Vermeijden, MD, UNITED STATES Xiuyi A Yang, M.S., UNITED STATES Robert O'Brien, MHS, PA-C, UNITED STATES Jelle P. van der List, MD, PhD, NETHERLANDS Gregory S. Difelice, MD, UNITED STATES
Age-Related Microstructural Changes In Semitendinosus and Quadriceps Tendons ePoster Presentation Junsuke Nakase, MD, PhD, JAPAN Kazuki Asai, JAPAN Mitsuhiro Kimura, JAPAN Rikuto Yoshimizu, JAPAN Tomoyuki Kanayama, MD, JAPAN Yusuke Yanatori, MD, JAPAN Hiroyuki Tsuchiya, JAPAN
Patients Undergoing Reconstruction For Multi-Ligament Knee Injuries Caused By Pivoting Sports Restore Function And Return to Sport at a Similar Level to Their Isolated ACL Counterparts: A Prospective Matched Cohort Study ePoster Presentation Jay R. Ebert, PhD, AUSTRALIA Peter Edwards, PhD, AUSTRALIA Shahbaz S Malik, BSc, MB BCh, MSc (Orth Engin), LLM, FRCS (Tr&Orth), UNITED KINGDOM Stephen Dalgleish, MBChB, MRCS, FRCS, UNITED KINGDOM Antony Raymond, FRCS, UNITED KINGDOM Randeep Singh Aujla, MBChB ChM FRCS (Tr&Orth) MFSEM, UNITED KINGDOM Robert Evans, MD, AUSTRALIA Michael Andreas Finsterwald, MD, AUSTRALIA Uriel Giwnewer , MD, ISRAEL Ashley Iain Simpson, BA(Hons), MBBS, MSc, MA(Cantab), FRCS(Tr&Orth), UNITED KINGDOM Sat Gohil, MBBS, FRACS(Ortho), AUSTRALIA Peter Alberto D'Alessandro, MBBS Hons. (UWA) FRACS FAOrthA, AUSTRALIA
Implant-Free Reconstruction Techniques For Ligaments Injuries Of The Knee – Cost-Effective Innovative Alternatives For The Traditional Techniques ePoster Presentation Girinivasan Chellamuthu, MBBS, MS Ortho, FIOT, FASM, INDIA Santosh Sahanand Kulasekaran, MBBS,MS(ortho), INDIA David V. Rajan, MS(Orth), MNAMS(Orth), FRCS(G), INDIA
Does Delaying First Revision ACLR Result in Poorer Outcomes? Evaluation of Association Between Surgical Timing and Outcomes ePoster Presentation Bryce Dzubara, BS, UNITED STATES Parker Cavendish, BS, UNITED STATES Eric Milliron, BS, UNITED STATES James C. Kirven, BS, UNITED STATES Spencer E. Talentino, MD, UNITED STATES Ryan H. Barnes, MD, UNITED STATES Charles Qin, MD, UNITED STATES David C. Flanigan, MD, UNITED STATES Robert A. Duerr, MD, UNITED STATES Christopher C. Kaeding, MD, UNITED STATES Robert A Magnussen, MD, MPH, UNITED STATES
Analysis of Historic and Modern Treatment Outcomes in Primary Anterior Cruciate Ligament Repair: Systematic Review and Meta-analysis ePoster Presentation Jaren LaGreca, MD, UNITED STATES Marc Tompkins, MD, UNITED STATES
Tibial Tunnel Aperture Migration After Anatomical Rectangular Tunnel ACL Reconstruction using Bone-Patellar Tendon-Bone Autografts ePoster Presentation Ryo Murakami, MD, JAPAN Shuji Taketomi, MD, PhD, JAPAN Ryota Yamagami, MD, JAPAN Kenichi Kono, MD, PhD, JAPAN Kohei Kawaguchi, MD, JAPAN Tomofumi Kage, JAPAN Takahiro Arakawa, MD, JAPAN Sakae Tanaka, MD, PhD, 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
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
Altered Trunk Movements During Running after Anterior Cruciate Ligament Reconstruction ePoster Presentation Jodie A. McClelland, BPhysio(Hons), PhD, AUSTRALIA Julian A. Feller, FRACS, FAOrthA, AUSTRALIA Michael Maes, Md, BELGIUM Gustaf Gauffin, SWEDEN Anna Nilsson, SWEDEN Kate E. Webster, PhD, AUSTRALIA
Adverse Events And Complications Reported In Prospective Versus Retrospective Investigations Of ACLR with BTB Autograft: A Systematic Review ePoster Presentation Garrett Jackson, MD, UNITED STATES Harkirat Jawanda, BS, UNITED STATES Enzo Salviato Mameri, MD, MSc, BRAZIL Zeeshan Khan, BA, UNITED STATES Johnathon Robert Mccormick, MD, UNITED STATES Derrick Michael Knapik, MD, UNITED STATES Nikhil N. Verma, MD, UNITED STATES Jorge Chahla, MD, 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, UNITED STATES
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
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
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
Social Media Content Related to ACL Recovery: An Analysis ePoster Presentation Sabreena Moosa, HBSc, CANADA Isabel Thomas, HBSc, CANADA Darren L. de SA, MBA(c), MD FRCSC, CANADA
High Return to Sport Rate and Few Re-Ruptures at Long Term in Professional Footballers After Anterior Cruciate Ligament Reconstruction with Hamstrings ePoster Presentation Tommaso Bonanzinga, MD, PhD, ITALY Alberto Grassi, PhD, ITALY Gian Andrea Lucidi, MD, ITALY Luca Macchiarola, MD, ITALY Marianna Viotto, ITALY Stefano Zaffagnini, MD, Prof., ITALY
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, ITALY Giada Lullini, MD, PhD, ITALY Stefano Zaffagnini, MD, Prof., ITALY Giulio Maria Marcheggiani Muccioli, MD, PhD, Associate Professor, ITALY
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
Second-look Arthroscopic Evaluation and Clinical Outcomes After Anatomic Double Bundle Anterior Cruciate Ligament Reconstruction: Comparison of Different Knee Flexion Angles During Tibial Graft Fixation ePoster Presentation Yasunari Oniki, MD, PhD, JAPAN Taiki Murakami, JAPAN Eiichi Nakamura, MD, PhD, JAPAN
Effects of Focused Extracorporeal Shock Wave Therapy in Reducing Pain In Patients With Anterior Knee Pain After ACLR with BTB Autograft ePoster Presentation Hideaki Fukuda, MD, JAPAN
Tibial Slope in Anterior Cruciate Ligament Deficient Knees Does Not Affect the Incidence of Concomitant Ligamentous Injuries ePoster Presentation Khai Cheong Wong, MBChB, MRCS (Eng), SINGAPORE Merrill Lee, MBBS, MRCS(Edin), SINGAPORE Mark H.X. Yeo, MBBS, SINGAPORE Shawn Js Seah, MBBS, SINGAPORE Glen Ho, MBBS, SINGAPORE Paul Chee Cheng Chang, MBBS,FRCS, SINGAPORE Denny T. T. Lie, MBBS, FRCS, FAMS, SINGAPORE
“It’s Just My Knee”: The Role of Resilience and Reframing on Young Athlete’s Quality of Life Following ACL Injury ePoster Presentation Hana Marmura, BSc, CANADA Dianne M. Bryant, PhD, CANADA Alan Getgood, MD, FRCS(Tr&Orth), DipSEM, CANADA Fiona Webster, PhD, CANADA
Diagnosis and Classification of Anteromedial Bundle Injury In Anterior Cruciate Ligament Injuries with a Digital Application ePoster Presentation Fernando Hernandez-Aragon, MD, MEXICO Nadia Karina Portillo Ortiz, MD, MEXICO Jose Arturo Balderrama Reynosa, Ing., MEXICO Marcela Miranda Robles, Ing., MEXICO Ivan Ramos Moctezuma, Eng, MEXICO Luis Sigala Gonzalez, Eng, MEXICO Irene Leal-Berumen, PhD, MEXICO Arturo Aguirre Madrid, MD, MEXICO Fernando González González, MD, MEXICO Edmundo Berumen Nafarrate, PhD, Prof., MEXICO
A Comparison of Return to Sport Rates Between Male and Female Athletes After Anterior Cruciate Ligament Reconstruction in an Australian Context ePoster Presentation Haydn Klemm, BFSc&Nutr (Hons), AUSTRALIA Kate E. Webster, PhD, AUSTRALIA Julian A. Feller, FRACS, FAOrthA, AUSTRALIA
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
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, BMSc, CANADA Saihaj Dhillon, BHSc, CANADA Odette Cotnareanu, BSc, CANADA Dan Cohen, MD, CANADA Kanto Nagai, MD, PhD, JAPAN Darren L. de SA, MBA(c), MD FRCSC, CANADA
Accuracy and reliability of Ultrasound-assisted Lachman Test in Diagnosing Anterior Cruciate Ligament Injuries ePoster Presentation Yuzuru Sakakibara, MD, PhD, UNITED STATES 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
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, MD, GERMANY Christian Peez, MD, GERMANY Thorben Briese, MD, GERMANY Elmar Herbst, MD, PhD, GERMANY Christoph Kittl, MD, MD(res), GERMANY Johannes Glasbrenner, MD, GERMANY
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
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, MBA(c), MD FRCSC, CANADA
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
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
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
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
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 M. Enes Kayaalp, MD, Assoc. Prof., TURKEY Serkan Surucu, MD, UNITED STATES Mehmet Halis Çerçi, MD, TURKEY Mahmud Aydın, MD, TURKEY Mahir Mahirogullari, MD, Prof., TURKEY
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
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
Short Message Service-Based Collection of Patient Reported Outcome Measures Following ACL Reconstruction: A Pilot Study ePoster Presentation Steffen Sauer, MD, DENMARK
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
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
New Injuries Within 2 Years After Acute ACL Injury Treated With Either ACL Reconstruction and Rehabilitation or With Rehabilitation Alone ePoster Presentation Anna Samuelsson Selin , MD, PhD student, SWEDEN Hakan Gauffin, MD PhD, SWEDEN Anne Fältström, PhD, SWEDEN Joanna Kvist, Professor, RPT, SWEDEN
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, JAPAN Kentaro Tanaka, MD, JAPAN Kenichiro Takeshima, MD, JAPAN Ken Ishii, MD, PhD, JAPAN
Biomechanical Study of the Elastic Fixation of the Posterolateral Fracture of the Tibial Plateau: Arrow Technique ePoster Presentation Oscar Ares, PhD, SPAIN David Gutierrez Medina, MD, SPAIN Carlos Andres Morales-Marin, MD, SPAIN Salvador Madariaga, MD, SPAIN Andrea Sallent, MD, PhD, SPAIN Jose Alonso Zumbado, MD, SPAIN Manuel Llusà, SPAIN
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
Single Graft Revision Anterior Cruciate Ligament Reconstruction With Anterolateral Extra-Articular Reconstruction: Description Of A Surgical Technique. Clinical And Functional Results After a 2 Year Follow-Up ePoster Presentation Monica Sánchez Santiuste, MD, SPAIN Cristina Jiménez Nava, Resident, SPAIN Víctor Vaquerizo García, MD, PhD, SPAIN Marta García López, SPAIN
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, 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
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
Quadrupled Semitendinosus vs. Semitendinosus-Gracilis Graft for ACL Reconstruction:a Randomized Controlled Trial ePoster Presentation Juan Pablo Martinez-Cano, MD, MSc, PhD, COLOMBIA Laura Zamudio, MD, COLOMBIA Julian Chica, MD, COLOMBIA Juan José Martinez Arboleda, MD, COLOMBIA Fernando M. Mejia, MD, COLOMBIA Alfredo Martinez Rondanelli, MD, COLOMBIA
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
Investigation of the Effect Of Anterior Cruciate Ligament Injury on the Axial Rotation of the Knee Joint ePoster Presentation Kenjiro Okimura, MD, 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
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
High Prevalence Of Injuries Associated With ACL Tears: A Detailed Analysis Of 253 Patients From A National Multi-center Cohort Study ePoster Presentation Riccardo Cristiani, MD, PhD, SWEDEN Fabian Van de Bunt, MD, PhD, SWEDEN Joanna Kvist, Professor, RPT, SWEDEN Anders Stalman, MD, PhD, associate professor, SWEDEN
Return To Play And Pattern Of Injury In A Consecutive Case Series Of Elite UEFA Football Player Following Anterior Cruciate Ligament Rupture ePoster Presentation Luca Farinelli, MD, ITALY Elisabeth Abermann, MD, AUSTRIA Amit Meena, MBBS, MS, DNB, INDIA Christian Fink, MD, Prof., AUSTRIA
Outcomes After Operative and Nonoperative Treatment of Anterior Cruciate Ligament Ruptures in Patients Aged 40 and Older: A 2:1 Propensity Score Matched Analysis ePoster Presentation Richard Puzzitiello, MD, UNITED STATES Madison Hayes-Lattin, BS, UNITED STATES Jack Bragg, MD, UNITED STATES Stephen Sylvia, MD, UNITED STATES Matthew Salzler, MD, UNITED STATES
The Lateral Femoral Notch Sign Decreases in Pediatric Patients Following Anterior Cruciate Ligament Reconstruction ePoster Presentation Nicolas Pascual-Leone, BA, 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
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
Epidemiological, Clinical and Radiological Features of ACL Aplasia: A Review of the Literature ePoster Presentation Michele Dell’Orfano, MD, ITALY Paolo Petitti, ITALY Niccolò Salvatelli, MD, ITALY Pier Paolo Mariani, MD, Prof, ITALY
Uncommonly Considered Predisposing Anatomic Risk Factor for Anterior Cruciate Ligament (ACL) Injury: Recognition and Possible Rehabilitation Potential for Prevention ePoster Presentation Mujeeb Ashraf, FRCS, MCh,FEBTS, SAUDI ARABIA Hatem Al-Harbi, FRCSC, SAUDI ARABIA
Outcomes of Revision Anterior Cruciate Ligament Reconstruction with autogenous Quadriceps Tendon graft ePoster Presentation Gustavo A. Rincon, MD, COLOMBIA Edgar Alberto Munoz, MD, COLOMBIA Camilo Marin, MD, COLOMBIA Hans Martin, MD, COLOMBIA Angela Morales, MD, COLOMBIA
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
Which Is Better for Anterior Cruciate Ligament Supplementary Fixation: Suture Anchor Or Staple? A Biomechanical Study ePoster Presentation Gen Lin Foo, MD, SINGAPORE Linyun Zhang, Master of Engineering in Engineering Mechanics, SINGAPORE Desmond Yok Rue Chong, PhD, SINGAPORE
The Relationship Between Preoperative Static Anterior Tibial Subluxation and Graft Maturation on MRI After Double-Bundle Anterior Cruciate Ligament Reconstruction ePoster Presentation Shigehiro Asai, MD, JAPAN Hideaki Fukuda, MD, JAPAN Takahiro Ogura, MD, JAPAN Kenji Takahashi, MD, PhD, JAPAN
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
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
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, MD, PhD, JAPAN Kazuyoshi Nakanishi, Prof., JAPAN
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, JAPAN Umito Kuwashima, MD, PhD, JAPAN Ken Okazaki, MD, PhD, JAPAN Kiyotaka Iwasaki, Prof, JAPAN
An Analysis Of Repeat Anterior Cruciate Ligament Injury and Return to Sport in Australian Soccer Players Demonstrates Hamstring Autografts to be a Reliable Option ePoster Presentation Jonathan R Manara, BMBS, FRCS (Tr & Orth), UNITED KINGDOM Lucy J. Salmon, PhD, AUSTRALIA Faisal Kilani, BSc, AUSTRALIA Claire Monk, BS, AUSTRALIA Keran Sundaraj, MBBS MCs (Trauma) FRACS FAOA, AUSTRALIA Leo A. Pinczewski, MBBS, FRACS, FAOA, AUSTRALIA Justin P. Roe, FRACS, A/Prof., AUSTRALIA
ACL Graft Tear or Contralateral ACL Tear: Which is Worse??? ePoster Presentation Robert A Magnussen, MD, MPH, UNITED STATES Yuxuan Jin, MS, UNITED STATES Kurt Paul Spindler, 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
Comparative Results Of Anterior Cruciate Ligament Reconstruction With Full Tibial Tunnel: Quadrupled Semitendinosus Suspensory Femoral And Tibial Fixation Versus Quadrupled Semitendinosus and Gracilis Suspensory Femoral and Tibial Screw & Staple Fixation ePoster Presentation Mahir Mahirogullari, MD, Prof., TURKEY Lokman Kehribar, MD, TURKEY Serkan Surucu, MD, UNITED STATES M. Enes Kayaalp, MD, Assoc. Prof., TURKEY Ali Kerim Yılmaz, PhD, TURKEY Mahmud Aydın, MD, TURKEY
Simultaneous Reconstruction of the Anterior Cruciate Ligament and Medial Collateral Ligament Using Semitendinosus and Gracilis Autografts: A Minimum 2-Year Follow-Up Study ePoster Presentation Miten R. Sheth, MBBS, MS, DNB (Orth), INDIA
Elevated Tibial Spine Height as a Predictor of Reinjury after Anterior Cruciate Ligament Reconstruction ePoster Presentation Naofumi Hashiguchi, MD, JAPAN Atsuo Nakamae, MD, PhD, JAPAN Goki Kamei, MD, PhD, JAPAN Masakazu Ishikawa, MD, PhD, JAPAN Nobuo Adachi, MD, PhD, JAPAN
Comparing the Accuracy of Tunnel Placement and Patient Reported Outcome Measures when Doing Arthroscopic ACL Reconstruction With and Without Indigenously Designed Grid and Image Intensifier ePoster Presentation Sudeep Kumar, MS (Orthopaedics), INDIA
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
Early Results of ACL Reconstruction with Quadriceps Tendon Autograft All-Inside Technique ePoster Presentation Amogh Iyer, BS, UNITED STATES Galo Bustamante, BS, UNITED STATES Eric Milliron, BS, UNITED STATES Parker Cavendish, BS, UNITED STATES James C. Kirven, BS, UNITED STATES Spencer E. Talentino, MD, UNITED STATES Charles Qin, MD, UNITED STATES Ryan H. Barnes, MD, UNITED STATES David C. Flanigan, MD, UNITED STATES Christopher C. Kaeding, MD, UNITED STATES Robert A Magnussen, MD, MPH, UNITED STATES Robert A. Duerr, MD, UNITED STATES

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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

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

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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

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

Purpose

Methods

Results

Conclusions