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Ankle/Foot/Calf (22 e-Posters)
Heel-Rise Height (HRH) Shows Better Capability Than Achilles Tendon Resting Angle (ATRA) in Reflecting Patient Reported Outcome Measures and Return to Previous Activities One Year After Acute Achilles Tendon Rupture. Allan Cramer, MD, PhD DENMARK
Postoperative Pain And Opioid Use Following Surgical Treatment Of Ankle Fractures Jacob Boersma, MD UNITED STATES
Percutaneous Achilles Tendon Reconstruction With A Central Turndown Flap And Semitendinosus Augmentation, Wiroc 2019, Mumbai. Ghanshyam Kakadiya, MBBS, MS Orthopaedic, DNB, FISS INDIA
Estimation of Patient Acceptable Symptom State (PASS) and Treatment Failure (TF) Threshold Values for the Achilles Tendon Total Rupture Score (ATRS) at 6 Months, 1 Year and 2 Years After Acute Achilles Tendon Rupture. Allan Cramer, MD, PhD DENMARK
Return to Sports and Clinical Outcomes in Suture-Tape Augmentation for Ankle Instability – A Systematic Review Nathaniel P Mercer, MS UNITED STATES
Clinical And Radiological Outcomes Of Autologous Osteochondral Transplantation With And Without Micronized Allograft Cartilage Matrix Augmentation For Osteochondral Lesions Of The Talus Nathaniel P Mercer, MS UNITED STATES
Insertional Achilles Tendinopathy – A Review Of Current Evidence and a Proposed Management Protocol Mothana Gawad, MBBS UNITED KINGDOM
Endoscopic flexor hallucis longus transfer for the management of Acute Achilles tendon ruptures in active professional Soccer players. A Prospective Case Series Report With A Minimum Of 2 Years Follow Up. Nasef Mohamed N. Abdellatif, MD, PhD. EGYPT
Precision Calcaneal Slide Osteotomy Naren G. Gurbani, MD; FACS; FAAOS UNITED STATES
Deltoid Ligament Arthroscopic Repair In Ankle Fractures: Case Series Nacime Salomao Barbachan Mansur, MD, PhD UNITED STATES
Accuracy Of Magnetic Resonance Imaging In Diagnosis Of Anterior Ankle Impingement Alexandria Lichtl, BA UNITED STATES
Utilization of Arthroscopy During Ankle Fracture Fixation among Early Career Surgeons: An Evaluation of the American Board of Orthopedic Surgery Part II Database Alan Shamrock, MD UNITED STATES
Percutaneous Repair of The Acute Achilles Tendon Rupture Allows a Faster Return to Working Activities Compared to Open and Mini-Open Repair Bruno S. Pereira, MD, PhD, Prof. PORTUGAL
Endoscopic Flexor Hallucis Longus Transfer For The Management Of Acute Achilles Tendon Ruptures. A Prospective Case Series Report With A Minimum Of Eighteen Months Follow Up. Nasef Mohamed N. Abdellatif, MD, PhD. EGYPT
Endoscopic Fhl Transfer For Acute Achilles Tendon Rupture: A Hybrid Model Of Treatment Apostolos Polyzos, MD GREECE
Arthroscopic Os Trigonum En-Bloc Removal Outcomes At 6-Month Follow-Up Are Better Compared To Stieda's Process Resection In Posterior Ankle Impingement Syndrome Patients: A Prospective Comparative Study Theodorakys Marín Fermín, MD VENEZUELA
Alignment Of The Hindfoot Following Total Knee Arthroplasty: A Systematic Review James J Butler, MB BCh UNITED STATES
Arthroscopic Debridement of Osteochondral Lesions of The Talus: A Systematic Review. Theodorakys Marín Fermín, MD VENEZUELA
The Repercussion Of The Adjuvant Use Of 2-Octil Cyanoacrylate In The Repair Of The Calcaneus Tendon: Comparative Experimental Study In Rabbits Rogerio De Andrade Gomes, MD BRAZIL
Hemiarthroplasty Of The Ankle Joint Manuel Jose Pellegrini, MD CHILE
Achilles Tendon Repair: Can Patients Read, Understand, and Act on Online Educational Resources? Alan Shamrock, MD UNITED STATES
Diagnosis Of The Achilles Insertional Tendinopathies By Algometry Nacime Salomao Barbachan Mansur, MD, PhD UNITED STATES

Elbow/Wrist/Hand (17 e-Posters)
Baseball Players Exhibit Symptoms Of Posttraumatic Stress Disorder After Ulnar Collateral Ligament Rupture Forrest L. Anderson, MD UNITED STATES
Optimal Tension Of An Internal Brace For Ulnar Collateral Ligament Repair: A Cadaveric Biomechanical Study Heath Patrick Gould, MD UNITED STATES
Return To Play Rates Following Ulnar Nerve Transposition Surgery: A Retrospective Analysis Christopher J. Hadley, BS UNITED STATES
Higher Failure Rate Of Suture Anchors In Partial Distal Biceps Tendon Ruptures In Comparison To Endobutton Fixation Lisa Worner, MD UNITED STATES
Clinical Outcomes Of Lunocapitate Arthrodesis: A Dual-Site Retrospective Study Ather Mirza, MD UNITED STATES
Complications Following Endoscopic And Open Trigger Finger Release: A Retrospective Comparative Analysis Justin Bruno Mirza, DO UNITED STATES
Descriptive Epidemiology Of Wrist And Hand Injuries And Procedures Performed In NCAA Division I Football Players Over The Period Of 17 Years Seth C. Gamradt, MD UNITED STATES
Our Results in Distal Biceps Tendon Tear Repair Before and After COVID19 Lockdown. A Report of 144 cases Guillem Navarro Renalias, MD SPAIN
Reliability Of Anterior Medial Collateral Ligament Plication Of The Elbow Paolo Angelo Arrigoni, MD ITALY
Velocity Increases From Flat Ground to Mound Work During a Lighter Baseball Training Program Brandon Erickson, MD UNITED STATES
Athletic Hip Injuries Are Associated With Ulnar Collateral Ligament Tears In Overhand Throwers Marc Lubitz, MD UNITED STATES
Arthroscopic Release Of The Elbow Joint Mariia Kotova, MD UKRAINE
What to do with Ligamentous Injuries in Distal Radius Fractures Margaret W. M. Fok, FRCSEd(Ortho), MBChB HONG KONG
The Influence Of Patient Sex On Outcomes Following Surgical Treatment Of Osteochondritis Dissecans Lesions Of The Elbow: A Systematic Review Mary K. Mulcahey, MD UNITED STATES
Health Literacy in Elbow Arthroscopy: A Quantitative Assessment of the Readability, Understandability And Actionability of Online Patient Education Material Alan Shamrock, MD UNITED STATES
Procedural Outcomes of Double Vs. Single Fluoroscopy for Fixing Supracondylar Humerus Fractures in Children: A Case–Control Study Çağatay Tekin, MD TURKEY
A Textile-Based Wearable System Designed For Monitoring Elbow Movements Umile Giuseppe Longo, MD, MSc, PhD, Prof. ITALY

Hip/Groin/Thigh (39 e-Posters)
Surgical Treatment of High-Grade Acute Intramuscular Hamstring Tendon Injuries in Athletes Randeep Singh Aujla, MBChB ChM FRCS (Tr&Orth) MFSEM UNITED KINGDOM
Snapping Hip Syndrome : a uncommon cause of hip pain Pollyanna Christine Ferreira Frazão, MD PORTUGAL
Health Literacy in Hip Arthroscopy: A Quantitative Assessment of the Understandability and Readability of Online Patient Education Alan Shamrock, MD UNITED STATES
Health Literacy in Periacetabular Osteotomy Procedure: A Quantitative Assessment of the Readability, Understandability and Actionability of Online Patient Education Material Alan Shamrock, MD UNITED STATES
Correlation Between Arthro-MRI Results And Intraoperative Hip Arthroscopy Findings In Fai Syndrome Alexander Zimmerer, MD GERMANY
Arthroscopic Tendon Release for Iliopsoas Impingement after Total Hip Arthroplasty Michael Andreas Finsterwald, MD AUSTRALIA
Hip Arthroscopy in Patients with Borderline Dysplasia. Leonel Perez Alamino, MD ARGENTINA
EVALUATION OF HIP ARTHROSCOPY IN ELITE ATHLETES WITHOUT HIP DYSPLASIA . OUR EXPERIENCE. A 15-YEAR STUDY George D. Tsikouris, MD GREECE
The Radiographical Influence Of Torsional Deformity Of The Acetabular And Femur In Dysplastic Hips Henrik Baecker, MD GERMANY
Persistent Post-Operative Opioid Use Following Hip Arthroscopy Is Common And Is Associated With Pre-Operative Opioid Use And Age Ryan M. Degen, MD, FRCSC CANADA
Clinical Predictors of Outcome Following Proximal Hamstring Tendon Repair Heath Patrick Gould, MD UNITED STATES
No Difference In Minimum Two-Year Patient-Reported Outcome Scores Between Circumferential And Segmental Labral Reconstruction For The Management Of Irreparable Labral Tear And Femoroacetabular Impingement Syndrome In The Primary Setting. Benjamin G. Domb, MD UNITED STATES
The Surgeon Mentor Program: Outcomes of Total Hip Arthroplasty via the Direct Anterior Approach Christopher J. Wilson, A/Prof, MBChB, MRCS, FRACS, PhD AUSTRALIA
Capsular Complications And Subsequent Instability On The Rise As Indications For Revision Hip Arthroscopy Ryan S. Selley, MD UNITED STATES
Efficacy Of Enoxaparin As A Thromboprophylactic Agent In Major Lower Limb Orthopedic Surgeries. Raghavendra Raju, MBBS,MS INDIA
Stem Cells Injection And Percutaneous Femoral Head Decompression - An Extremely Rare Procedure With Good Results Sofia Moura De Carvalho, MD PORTUGAL
Use Of Preoperative Magnetic Resonance Imaging To Predict Clinical Outcomes Following Core Muscle Injury Repair Matthew J. Kraeutler, MD UNITED STATES
Evaluation of endoscopically gluteus medius repair in patients with Femoro-acetabular impingement and labrum detachment George D. Tsikouris, MD GREECE
Mortality After Hip Or Knee Arthroplasty For Osteoarthritis In Chile Maximiliano Andres Barahona, MD, MSc CHILE
Labral Size Correlates With Increasing Intraarticular Damage At Time Of Arthroscopy In Borderline Dysplastic Patients Benjamin G. Domb, MD UNITED STATES
Arthroscopy For Gunshot Wounds To The Hip Jorge Figueras, BS UNITED STATES
Outcome Measures After Proximal Hamstring Repair: A Systematic Review Mary K. Mulcahey, MD UNITED STATES
Solving Social Inequality In Surgical Outcomes By Combining Standardized Treatment And Individualized Patient Education Benjamin G. Domb, MD UNITED STATES
Predicting Dissatisfaction Following Total Hip Arthroplasty Using A Bayesian Model Averaging (Bma) Approach: Results From The Australian Arthroplasty Clinical Outcomes Registry (Acorn) Jan Peter Van Meirhaeghe, MD BELGIUM
Outcomes of Associated Both Column Acetabular Fractures with and without a Posterior Wall Fracture George Bradley Reahl, MS UNITED STATES
Efficacy Of Tranexamic Acid In Hip Fracture Surgeries Aabid Sanaullah, MBBS,MRCS,MRCPS,PGDipTrauma Surg.FEBOT,FRCSTr&Orth UNITED KINGDOM
Hip Labrum Reconstruction With A Polyurethane Scaffold: A Preliminary Report Of 3 Cases Bruno Capurro, MD, PhD. SPAIN
Psychologically Distressed Patients Can Obtain Meaningful Clinical Benefit from Arthroscopic Hip Surgery Benjamin G. Domb, MD UNITED STATES
A Comparison Of Perioperative Outcomes Between Patients Who Underwent Hip Arthroscopy With And Without The Pericapsular Nerve Group Block Iciar M Davila Castrodad, MD UNITED STATES
Hip Arthroscopic Portals:A New Approach Through Accessory Portals Established Within 3Cm Around Anterolateral Portal Kiran Kumar Shah, MD NEPAL
Defining Sex-Based Outcomes Following Hip Arthroscopy In Patients With Borderline Hip Dysplasia. Benjamin G. Domb, MD UNITED STATES
Sex- And Age-Based Differences In Outcomes And Survivorship Following Primary Hip Arthroscopy At Short And Mid-Term Follow-Up: A Comparative Analysis Benjamin G. Domb, MD UNITED STATES
Results After Arthroscopic Treatment Of Iliopsoas Impingement After Total Hip Arthroplasty Alexander Zimmerer, MD GERMANY
Mid-Term Outcome and Strength Assessment after Proximal Rectus-Femoris-Refixation in Athletes Maximilian Hinz, MD GERMANY
A Prospective Comparison Of Groin-Related Complications Following Hip Arthroscopy With Versus Without A Perineal Post Iciar M Davila Castrodad, MD UNITED STATES
Outcomes Of Revision Hip Arthroscopy Are Unaffected By Intraoperative Findings: A Matched Cohort Study Benjamin G. Domb, MD UNITED STATES
A Systematic Review Of Terminology, Surgical Techniques, Preoperative Diagnostic Measures, And Geographic Differences In The Treatment Of Athletic Pubalgia/Sports Hernia/Core Muscle Injury/Inguinal Disruption Matthew J. Kraeutler, MD UNITED STATES
“X-Square” Technique For Radial Meniscal Root Tear Winyou Ratanachai, MD.M Ch(Orth). THAILAND
Promis Mobility: Evaluation Of The Lower Extremity-Specific Instrument In A Sports Medicine Hip Registry Molly A Day, MD UNITED STATES

Knee - ACL (95 e-Posters)
One Sixth Of Primary Anterior Cruciate Ligament Reconstructions May Undergo Reoperation Due To Complications Or New Injuries Within 2 Years Riccardo Cristiani, MD, PhD SWEDEN
ACL Repair Versus ACL Reconstruction in Chronic Lesions Gian Luigi Canata, MD ITALY
The optimal tunnel placement for anterior cruciate ligament reconstruction: an MRI analysis of tibial footprint Nadhaporn Saengpetch, MD THAILAND
Injury Patterns of Acute ACL Tears in Young Athletes Under the Age of 26 Years Matthias Schurhoff, MD UNITED STATES
Full-Thickness Peroneus Longus Tendon Autograft For Anterior Cruciate Ligament Reconstruction: Outcomes And Donor Site Morbidity Tarun Goyal, MBBS, MS, DNB, MCh, FRCS (Edin) INDIA
Healing Of The Patella Harvest Donor Site And Tendon Graft In Bone-Tendon-Bone Anterior Cruciate Ligament Reconstruction In Football Players Georgios N. Tzoanos, MD GREECE
Avascular Necrosis Of The Knee After ACL Reconstruction – An Under-Recognized Problem? William Michael Pullen, MD UNITED STATES
Healing of an acutely repaired ACL is not inferior to a reconstructed ACL as evaluated by MRI at 1 year Andrea Ferretti, Prof. ITALY
Deficits In Muscle Strength And Proprioception Are Not Seen Following Recovery From Augmented Repair Of Anterior Cruciate Ligament Tears William Thomas Wilson, MBChB BSc(MedSci) FRCS (Tr&Orth) MFSEM(UK) UNITED KINGDOM
Second Anterior Cruciate Ligament Injury Rates In Younger Athletes Advised To Delay Their Return To Sport Kate E. Webster, PhD AUSTRALIA
Bone Edema On Medial Tibial Plateau Is Associated With Rotatory Instability In Anterior Cruciate Ligament-Deficient Knees Piero Agostinone, MD ITALY
Outcomes of Quadriceps Tendon Anterior Cruciate Ligament Reconstruction in Skeletally Immature Patients: 2-year Follow-Up Daniel W. Green, MD, MS UNITED STATES
A New Method for Diagnosis of Anterior Cruciate Ligament Tear: MRI with Maximum Flexion of Knee in the Prone Position: A Case Control Study Çağatay Tekin, MD TURKEY
Comparison of three different Quadriceps Tendon ACL graft to BTB and Semi-T grafts: A biomechanical study Marc Jacob Strauss, MD NORWAY
Autograft Soaking In Vancomycin In Anterior Cruciate Ligament Reconstruction Alters Tendons Structure. An Histopathological Interpretation. Catarina Quintas, MD PORTUGAL
Patient Specific Instrumentation In Acl Reconstruction. A Novel Technique Using A 3D Printed Guide. Mark Zee, MD NETHERLANDS
An Anterior Cruciate Ligament In-Vitro Rupture Model Based On Clinical Imaging Andrew A. Amis, FREng, DSc, PhD UNITED KINGDOM
Rates of Secondary Surgery Following Anterior Cruciate Ligament Repair with Suture Tape Augmentation are Comparable to Anterior Cruciate Ligament Reconstruction Graeme P. Hopper, MBChB, MSc, MRCSEd, MFSTEd, MD, FRCSGlas (Tr&Orth) UNITED KINGDOM
Anterior Cruciate Ligament Repair With Suture Tape Augmentation Fixed At 20° Reduces Knee Laxity: A Biomechanical Study Carola F. van Eck, MD, PhD, FAAOS UNITED STATES
Factors associated with anterior cruciate ligament (ACL) reconstruction among ACL injuries in Alberta, Canada Yuba Raj Paudel, MPH CANADA
Biomechanical Comparison of The Fixation Configurations of Soft-Tissue Quadriceps Tendon Graft Using A Suspensory Button Kohei Kamada, MD, PhD UNITED STATES
Clinical Outcomes and Return to Sports at 2 Years After ACL Reconstruction and Lateral Tenodesis in At-Risk Patients Søren Vindfeld, MD NORWAY
Increased Osteoarthritis And Knee Instability Following Postoperative Septic Knee Arthritis After Anterior Cruciate Ligament Reconstruction with a Minimum 8 Year Follow-Up Thomas R. Pfeiffer, Prof. GERMANY
Comparing Outcomes and Relative Valuation Of Primary Versus Revision Arthroscopic ACL Reconstruction Using A National Surgical Database Joshua P Weissman, BBA UNITED STATES
Association Of Bacterial Growth With Tibial Tunnel Widening In Anterior Cruciate Ligament Revision Surgery David C. Flanigan, MD UNITED STATES
Four-Strand Or Five-Strand Hamstring Graft For Anterior Cruciate Ligament Reconstruction - Does It Make A Difference? Parth Lodhia, MD, FRCSC CANADA
Suspensory (Cortical Button) Vs Expandable (Aperfix) Anteromedial Femoral Fixation In Acl Reconstruction With Autologous Hamstrings Tendons: A Prospective, Randomized, Controlled Study. Andreas Panagopoulos, Professor GREECE
Comparison Of Four Different Knee Arthrometers For The Evaluation Of Anterior Tibial Knee Translation In Healthy Subjects Armin Runer, PD MD GERMANY
Transphyseal Anterior Cruciate Ligament Reconstruction In Skeletally Immature Patients Matthew Howell, FRCS, MBChB, BMSc, PGCert UNITED KINGDOM
Utilizing a contralateral hamstring autograft facilitates earlier isokinetic and isometric strength recovery after anterior cruciate ligament reconstruction Christoffer von Essen, MD, PhD SWEDEN
Avoiding Popliteal Neuro-Vascular Injury During Iliotibial Band Acl Reconstruction Marc Tompkins, MD UNITED STATES
Knee Position At The Moment Of Bone Bruise Could Reflect The Late Phase Of Non-Contact Anterior Cruciate Ligament Injury Rather Than The Mechanisms Leading To Ligament Failure Alberto Grassi, PhD ITALY
10 Years Results Of Biological ACL Repair For Partial Tears Alberto Gobbi, MD, FRACS ITALY
Sex Differences In Knee Injuries Among National Collegiate Athletic Association Basketball Players Daniel Charen, MD UNITED STATES
Quadriceps Tendon Autograft And Lateral Extra-Articular Tenodesis Are Becoming Increasingly Popular In Revision Acl Reconstruction Ryan Eads, MD UNITED STATES
Primary Versus Revision Autograft Anterior Cruciate Ligament Reconstruction: Psychological Readiness At Return To Sport: Brian Randall Duncan, PT, DPT UNITED STATES
Midterm Results Of Anterior Cruciate Ligament Repair With Suture Tape Augmentation Graeme P. Hopper, MBChB, MSc, MRCSEd, MFSTEd, MD, FRCSGlas (Tr&Orth) UNITED KINGDOM
PRP in ACL Reconstruction Does Not Improve Clinical and Functional Outcomes: Results from a Prospective Randomized Clinical Study at 12 Years Follow-Up Rodrigo Guiloff, MD, Prof CHILE
Less tunnel enlargement in anatomical triple bundle anterior cruciate ligament reconstruction than in double bundle anterior cruciate ligament reconstruction in randomized clinical trial Kousuke Shiwaku, MD JAPAN
A High Tibial Slope, Allograft Use, And Poor Patient-Reported Outcome Scores Are Associated With Multiple ACL Graft Failures Ryan Eads, MD UNITED STATES
ACL Graft Preparation with Vancomycin Has No Effect on Patient Reported Outcomes and Graft Rupture Rates Following Primary ACL Reconstruction Alan Shamrock, MD UNITED STATES
How To Optimize The Graft Properties During Acl Reconstruction? Impact Of The Combining A Band Of discarded hamstring With The Former Graft S. Ali Ghasemi, MD UNITED STATES
Assessment of Anatomical Femoral and Tibial ACL's Footprints Using Specific MRI Sequences: Compressed Lateral and Anteroposterior Anatomical Systematic Sequences "CLASS" Grégoire Thürig, MD SWITZERLAND
The Effect Of Lateral Extraarticular Tenodesis On In Vivo Cartilage Contact In Combined Anterior Cruciate Ligament Reconstruction Kyohei Nishida , MD, PhD JAPAN
Does Saline Rinsing Of The Graft During ACL Reconstruction Decrease The Incidence Of Septic Arthritis? Leho Rips, MD ESTONIA
Clinical Outcomes Following Anterior Cruciate Ligament Reconstruction in Patients with a Concomitant Segond Fracture: A Systematic Review Kanto Nagai, MD, PhD JAPAN
Are the Clinical Outcomes And Failure Rates Following ACLR in Urban and Rural Patients Similar? Saroj Rai, MD, PhD UNITED ARAB EMIRATES
Anterior Cruciate Ligament (ACL) Repair Using Cortical Or Anchor Fixation With Suture Tape Augmentation Vs ACL Reconstruction: A Comparative Biomechanical Analysis Lukas Nawid Muench, MD GERMANY
Allografts Versus Hamstring-Autografts In Primary Anterior Cruciate Ligament Reconstruction. A Prospective Randomized Trial With A Follow-Up Of 13 Months. Paul Ruckenstuhl, MD, Msc AUSTRIA
Factors Associated with Articular Cartilage Injuries in Patients Undergoing Anterior Cruciate Ligament Reconstruction: A Multicentre Study Atsuo Nakamae, MD, PhD JAPAN
Five Year Results of a Prospective Randomized Controlled Trail: ACL Repair vs. ACL Reconstruction. Johannes Glasbrenner, MD GERMANY
Patient´S Sex And Height Predict Graft Size But Graft Size Does Not Influence Risk Of Graft Failure. A Study Of 4519 Patients With Primary Anterior Cruciate Ligament Reconstruction. Vasileios Sarakatsianos, MD SWEDEN
The Use Of An Internal Brace In A Single Bundle Hamstring Graft And Its Effect On Graft Healing At 1 Year After Anterior Cruciate Ligament Reconstruction Claire Bolton, FRACS, MBBS AUSTRALIA
Primary ACL Reconstruction in Professional Footballers: factors affecting return to play and re-rupture Kyle Borque, MD UNITED STATES
Comparing Postoperative Pain Control Between Adductor Canal Block and Local Analgesia in Anterior Cruciate Ligament Reconstruction: A Randomized Controlled Trial Study Khananut Jaruwanneechai, MD THAILAND
Anterior Cruciate Ligament Preservation: Results Of An Arthroscopic Technique For Primary Anterior Cruciate Ligament Repair In Young Athletes Bruno Saraiva De Morais, MD PORTUGAL
Rates of Anterior Cruciate Ligament Re-rupture in Pediatric and Adolescent Patients with and without Patella Alta Danielle E. Rider, BA UNITED STATES
ACL SPONTANEUS REPAIR. CASES SERIES Jose Luis Aparicio, MD ARGENTINA
Improved Epiphyseal Socket Placement with Intraoperative 3D Fluoroscopy: Consecutive Series of Pediatric All-Epiphyseal Anterior Cruciate Ligament Reconstruction Daniel W. Green, MD, MS UNITED STATES
Anterior Cruciate Ligament Reconstruction With Internal Brace Augmentation Has Less Re-Rupture Compared With Acl Reconstruction Without Augmentation João V. Novaretti, MD, PhD BRAZIL
Practice Patterns For Revision Anterior Cruciate Ligament Reconstruction In An Integrated Health Care System Christopher M. Gibbs, MD UNITED STATES
Posterior Placement Of The Tibial Tunnel Is A Risk Factor For Tibial Tunnel Coalition After Anatomic Double-Bundle Anterior Cruciate Ligament Reconstruction Koji Nukuto, MD, PhD UNITED STATES
A Stronger Psychological Profile Can Differentiate Patients Who Suffer An Acl Re-Rupture From Patients Who Do Not: A Matched Cohort Study Ramana Piussi, PhD SWEDEN
Kinesiophobia is not related to knee function, muscle strength and self reported outcome measures after anterior cruciate ligament reconstruction. Mihkel Luik, MSc ESTONIA
Early Return To Sport After Quadriceps Tendon Autograft ACL Reconstruction: Comparison To Bone-Patellar Tendon-Bone Autograft At A Minimum 1-Year Follow-Up Evan W. James, MD UNITED STATES
A Comparison Of Minimum 2-Year Clinical Outcomes With The Use Of A Flexible Versus Rigid Reaming System For Independent Femoral Tunnel Reaming During Acl Reconstruction Brian C Werner, MD UNITED STATES
Biomechanical Evaluation Of An Over-The-Top Femoral Fixation Technique For Anterior Cruciate Ligament Reconstruction Heath Patrick Gould, MD UNITED STATES
Comparison of Pain Score and Analgesic Usage Between Bone-Patellar Tendon-Bone, Hamstring and Quadriceps Tendon Autographs for Anterior Cruciate Ligament Reconstruction Jasmine Lyng, MD CANADA
A Modified Lemaire Lateral Extra-Articular Tenodesis in High-Risk Adolescents Undergoing Anterior Cruciate Ligament Reconstruction: Two-Year Clinical Outcomes Daniel W. Green, MD, MS UNITED STATES
Outcomes Following Anterior Cruciate Ligament Reconstruction in Young Patients: An Observational Study. Kunal Mohan, MB MCh MRCSI IRELAND
Arthroscopic Suture Fixation Of Comminuted Tibial Spine Fractures Kumar Shantanu, MS, Mch INDIA
Osteoarthritis-Biomarkers Behavior in Patients with ACL-Reconstruction, at 2 Years Follow Up. Jaime Palos, MD, MSc MEXICO
In Vivo Measurement of Anterior Cruciate Ligament Elongation and Strain Rate during Increasingly Demanding Activities Kyohei Nishida , MD, PhD JAPAN
Correlation Of Tibial And Femoral Tunnel Size With Pet Mri After Acl Reconstruction. David C. Flanigan, MD UNITED STATES
More Than Five Degrees Of Knee Hyperextension Before Acl Reconstruction Is Associated With Increased Failure Rate When Single Bundle Reconstruction With Hamstrings Is Performed Camilo P. Helito, MD, PhD, Prof BRAZIL
Additional Modified Lemaire Tenodesis During Anterior Cruciate Ligament Reconstruction Improves Knee Stability And Reduces Re-Rupture Rate. Jacco A. C. Zijl, MD NETHERLANDS
Bone-Patellar Tendon-Bone Anterior Cruciate Ligament Reconstruction Does Not Cause Functional Anterior Knee Pain Michael Nammour, MD UNITED STATES
ACL Surgery: Can Patients Read, Understand, and Act on Online Resources? A Cross-Sectional Study of Online Patient Education Materials Alan Shamrock, MD UNITED STATES
Association Between Mucoid Degeneration Of The Anterior Cruciate Ligament and Morphologic Change of The Magnetic Resonance Imaging and Plain Radiography Sang Hak Lee, MD, PhD KOREA, REPUBLIC OF
Early Patient Reported Outcome Measures And Revision Rates For Primary Anterior Cruciate Ligament Reconstruction: A New Zealand Registry Cohort Study Comparing Quadriceps Tendon, Hamstring Tendon, And Bone-Patellar-Tendon-Bone Autografts Yuxuan (Yushy) Zhou, MBChB, PGDipSurgAnat NEW ZEALAND
Knee Laxity And Functional Knee Outcome After Contralateral ACLR Are Comparable To Those After Primary ACLR Riccardo Cristiani, MD, PhD SWEDEN
Intravenous administration of two dose tranexamic acid ( TXA) and local anesthesia (LA) at graft site , improves outcome in single bundle Anatomical Anterior Cruciate Ligament reconstruction in uniformed military personnel. Mujeeb Ashraf, FRCS, MCh,FEBTS SAUDI ARABIA
Economic impact of anterior cruciate ligament injury in National Basketball Association players Nicholas J Vaudreuil, MD UNITED STATES
Anterior Cruciate Ligament Reconstruction Alongside Mesenchymal Stem Cells Implantation In A Single Stage Operation Improves Radiological And Clinical Outcomes In A Long-Term Follow-Up Michail I. Iosifidis, MD, PhD GREECE
Use Of A Synthetic And Autograft Hybrid Graft For Anterior Cruciate Ligament Reconstruction Provides Good Medium To Long Term Results And Low Re-Rupture Rates Neil Jain, BM, MRCS(Ed), FRCS(Tr&Orth) UNITED KINGDOM
Meniscal Preservation Is More Likely With Acute Acl Repair Than With Acl Reconstruction William Thomas Wilson, MBChB BSc(MedSci) FRCS (Tr&Orth) MFSEM(UK) UNITED KINGDOM
Surgical Predictors Of Clinical Outcome Six Years Following Revision ACL Reconstruction Rick W. Wright, MD UNITED STATES
Acute Anterolateral Knee Instability In Adults: A Combined Repair Of Proximal Acl Tears And All Injury Is Not Inferior To A Standard Acl Reconstruction And Lateral Tenodesis At 2 Years Andrea Ferretti, Prof. ITALY
Early ROM exercise after ACLR with hamstring autograft does not cause joint laxity : A Prospective Randomized Controlled Trial, 2 years follow up Jeong-Ku Ha, MD, phD, Prof KOREA, REPUBLIC OF
Comparative Analysis Of Results Of Arthroscopic Acl Reconstruction Between Free Hamstring Graft And Preserved Insertion Hamstring Graft. A Short Term Follow-Up Study Rajiv Gupta, PhD INDIA
Medial Ligamentous And Meniscal Injury Patterns In Patients With Acute ‘Isolated’ Acl Rupture Andy Williams, MBBS, FRCS(Orth), FFSEM(UK) UNITED KINGDOM
Wait times for knee arthroscopic surgery: does being on a waitlist affect health-related quality of life? Devin Clarke Peterson, MD, FRCSC, Dip Sport Med CANADA
Anterolateral Complex Injuries In ‘Isolated’ Anterior Cruciate Ligament Ruptures And Their Associations Andy Williams, MBBS, FRCS(Orth), FFSEM(UK) UNITED KINGDOM
ACL 3D Planning. Primary And Revision ACL Arthroscopic Surgery Meet 3D Technologies Fernando Menor Fusaro, MD SWITZERLAND
Substantial Clinical Benefit In The Patient Reported Outcomes Following Primary Anterior Cruciate Ligament Reconstruction Youngsik Jeon, MD KOREA, REPUBLIC OF

Knee - Arthroplasty (46 e-Posters)
Total Knee Arthroplasty: Factors Predicting Patient Satisfaction Mohamed Amine Gharbi , MD TUNISIA
Age-Adjusted Charlson Comorbidity Index As A Novel Guideline For Patient Selection Between Unilateral Versus Bilateral Simultaneous Total Knee Arthroplasty Priyadarshi Amit, MS, DNB, MRCSEd, MCh, FRCS UNITED KINGDOM
The Partial Femoral Condyle Focal Resurfacing (Hemicap-Unicap) For Treatment Of Full-Thickness Cartilage Defects, Systematic Review And Meta-Analysis Hany Elbardesy, MSc, MD, FRCS(Orth), FEBOT, SICOT Diploma UNITED KINGDOM
Risk Of Revision And Adverse Outcomes Following Partial Knee Replacement And High Tibial Osteotomy For Unicompartmental Knee Osteoarthritis : A Nationwide Cohort Study Sun-Ho Lee, MD KOREA, REPUBLIC OF
Preemptive Duloxetine Improved Postoperative Pain Relief And Wound Healing In Centrally Sensitized Patients Underwent Total Knee Arthroplasty: Double Blinded Randomized Controlled Trial Yong Gyu Sung, MD KOREA, REPUBLIC OF
Prospective Randomised Controlled Trial Of Three Tibial Component Fixation Techniques: Medium To Long Term Functional And Radiological Outcomes Darshan Srishail Angadi, MBBS, MRCS, PGCert, FRCS (Tr &Orth), MD(Research) INDIA
Outcome Assessment Following Routine Application Of Customized Implants For Primary Tka In The General Population: A Systematic Review Of The Literature Eran Beit Ner, MD ISRAEL
Favorable Outcomes Of Posterior Cruciate-Stabilized Implants Over Ultracongruent Implants In Total Knee Arthroplasty Kyle Kosei Obana, BA UNITED STATES
Does Resident Involvement During Revision Total Knee Arthroplasty Increase 30-Day Complications? Alan Shamrock, MD UNITED STATES
Causes Of Revision Following 1,353 Consecutive Attune Total Knee Replacements. Francisco Jose Barbosa, MD, FRCS (Tr&Orth) UNITED KINGDOM
Anterior Cruciate Ligament Deficiency Does Not Reduce the Clinical Effectiveness of Fixed-Bearing Partial Knee Arthroplasty Ashim Mannan, FRCS (Tr & Orth) UNITED KINGDOM
The Application Of Continuous Passive Motion After Total Knee Arthroplasty Does Not Affect The Knee Motion, Postoperative Pain And Surgical Wound Aspect Sergi Gil Gonzalez, MD SPAIN
The Influence Of Patellar Erosion On Knee Range Of Motion Following Unicompartmental Knee Arthroplasty Kyle Kosei Obana, BA UNITED STATES
Pre-Operative Opioids In Knee Arthroplasty: A Risk Factor For Long-Term Opioid Use Fraser Henderson, MBChB, MPhil, FRCS (Tr & Orth) UNITED KINGDOM
Temporal Changes In Sleep Quality And Knee Function Following Unilateral And Bilateral Total Knee Arthroplasty: A Prospective Study Darshan Srishail Angadi, MBBS, MRCS, PGCert, FRCS (Tr &Orth), MD(Research) INDIA
The Role of Pre-Operative MRI in Surgical Decision Making for Total vs. Unicompartmental Knee Arthroplasty Maddison Anne Morgan UNITED STATES
Fixed-Bearing Medial Unicondylar Knee Arthroplasty - Slight Varus, Just Right! Sean E. Slaven, MD UNITED STATES
Does a Medial Pivot Knee Prosthesis improve Clinical Outcomes? Results of a Randomized Clinical Trial Pieter J. Erasmus, MBChB, MMed, FCS(Orth) SOUTH AFRICA
Total Knee Arthroplasty: Assessment of Online Patient Education Material Alan Shamrock, MD UNITED STATES
An Evidence-Based Approach For Managing Patients With Advanced Knee Osteoarthritis And Obesity Niraj Vetharajan, MBBS BSc MSc FRCS UNITED KINGDOM
Robotic-arm assisted Lateral UKA : A Promising Early Follow-up Johncy Panicker, MBBS, MS INDIA
Midflexion Instability Following Total Knee Arthroplasty: A Systematic Review Alexander Jakubiec, BSc, MSc UNITED KINGDOM
Systematic Review of Modular Bicompartmental Knee Arthroplasty for Medio-Patellofemoral Osteoarthritis Priyadarshi Amit, MS, DNB, MRCSEd, MCh, FRCS UNITED KINGDOM
Tibial Coverage After Total Knee Arthroplasty: Ct Comparison Between Symmetric And Asymmetric Baseplates Thomas Neri, MD, PhD, Prof. FRANCE
WEIGHT CHANGE AND ACTIVITY IN PATIENTS WITH OBESITY AFTER A TOTAL ARTHROPLASTY OF KNEE Diego Sanchez Carpio, MD ARGENTINA
A Cross-sectional Analysis Correlating Anatomical Distribution of End-stage Osteoarthritis with Pre and Post-operative Function. Description of a Hybrid Radiological Anatomical Classification and its Clinical Validation. Johanna Elliott, MB, BS, B.Med Sci, Master Science GERMANY
Incidence and Risk Factors for Prolonged Hospital Stay or Non-Home Discharge Following Unicompartmental Knee Arthroplasty Alan Shamrock, MD UNITED STATES
Robotic Unicompartmental Arthroplasty Has Higher Revision Rates With Partial Cartilage Lesions And With Inlay Prosthesis When Compared To On Lay Prosthesis Gary G. Poehling, MD UNITED STATES
Rotational Reference Axes in TKA Johncy Panicker, MBBS, MS INDIA
Severe Patello-Femoral Osteoarthritis Does Not Diminish the Excellent Outcomes of Isolated Fixed-Bearing Partial Knee Arthroplasty Nick London, MA, MD, FRCS (Tr & Orth) UNITED KINGDOM
The Minimal Clinically Important Differences For Patient-Reported Outcomes Differ Between Centrally Sensitized And Non-Sensitized Patients Following Total Knee Arthroplasty Man-Soo Kim, MD, PhD KOREA, REPUBLIC OF
Arthroscopic-Assisted Robotic Bi-Unicompartmental Knee Arthroplasty: A Pilot Cadaveric Study. Andrea Fernandez, MD FRANCE
10-year outcomes of the Journey-Deuce bicompartmental knee arthroplasty Randeep Singh Aujla, MBChB ChM FRCS (Tr&Orth) MFSEM UNITED KINGDOM
Early Follow-Up of 258 Journey II Bi-Cruciate Substituting Total Knee Replacements Suggests Excellent Functional Outcomes and a Lower Than Anticipated Dissatisfaction Rate Richard Arun Kapur, MBChB, MSc, FRCS UNITED KINGDOM
A 2-Octyl Cyanoacrylate Topical Adhesive Versus Subcuticular Suture For Skin Closure Following Total Knee Arthroplasty: A Randomized Controlled Trial In The Same Patient Dong-Chul Park, MD KOREA, REPUBLIC OF
Handheld Robotic Assisted Total Knee Arthroplasty Improves The Outlier Of Rotational Alignment Of Tibia Prosthesis Using 3DCT Measurements Takao Kaneko, MD,PhD JAPAN
Incidence Of Peripatellar Neuropathy Following Total Knee Arthroplasty Mohamed Amine Gharbi , MD TUNISIA
Risk Factors For Prosthetic Joint Infection Following Total Knee Arthroplasty: Combined Results From The New Zealand Joint Registry And Surgical Site Infection Improvement Programme Simon W. Young, MD, FRACS NEW ZEALAND
Patient's Age Should Not Affect Selection for Fixed-Bearing Partial Knee Arthroplasty: Excellent Outcomes and Satisfaction Demonstrated for All Age Groups Damian Bull, FRCS (Tr & Orth) UNITED KINGDOM
Knee flexion contracture does not impact knee function after TKA: a case control study about 4154 cases. Andrea Fernandez, MD FRANCE
Rapid Recovery Protocol In Total Knee Arthroplasty. A Randomized Controlled Trial. Ignacio Aguado-Maestro, MD, FEBOT SPAIN
Participation in Sporting Activities Following Knee Replacement: Total Versus Unicompartmental – A 10-Year Follow-Up Study Christopher Allan, MBChB, MRCS UNITED KINGDOM
Analysis Of Post-Operative Osteoblastic Activity Patterns In Unicondylar Knee Arthroplasties Slated For Revision Lennart Scheys, PhD, Prof. BELGIUM
Total Knee Arthroplasty In Femoral Bowing: Does Patient Specific Instrumentation Have Something To Add? A Randomized Controlled Trial Dong-Chul Park, MD KOREA, REPUBLIC OF
Racial And Ethnic Disparities In Utilization Rate And Perioperative Outcomes After Knee And Hip Arthroplasty Kyle Kosei Obana, BA UNITED STATES
Gonyautoxins 2/3 Local Periarticular Injection For Pain Management After Total Knee Arthroplasty: A Double-Blind, Randomized Study Maximiliano Andres Barahona, MD, MSc CHILE

Knee - Cartilage (29 e-Posters)
Biomechanical Analysis Of Tissue Engineering Construct For Articular Cartilage Restoration - A Pre-Clinical Study Joao Paulo Cortez Santanna, MD, MSc BRAZIL
The Impact Of Intra-Articular Steroids On Infection Rates After Knee Arthroscopy Robert A. Duerr, MD UNITED STATES
Enhanced miRNA 140 and Hyaluronic acid expression in in vitro cultured human chondrocytes derived from OA affected cartilage tissue; An ideal tool for ACI and MACI Samuel Jk Abraham, MD, PhD JAPAN
Osteochondral Allograft Transplants For Large Oval Defects Of The Medial Femoral Condyle: Comparison Of Lateral Vs. Medial Femoral Condyle Donors And Single Vs. Double Plug Constructs Timothy Mologne, MD UNITED STATES
The Fragility Of Statistical Significance In Cartilage Restoration Of The Knee: A Systematic Review Of Randomized Controlled Trials Michael Constant, BA UNITED STATES
Midterm Patient-Reported Outcomes Of A Single-Surgery Treatment Of Knee Cartilage Lesions With Primary Autologous Articular Chondrocytes Co-Implanted With Bone-Marrow Cells In A Hyaluronan Scaffold Emmanouil Papakostas, MD, FEBSM QATAR
10 Years Of Clinical Results Using Hyaluronic Acid-Based Scaffold With Bone Marrow Aspirate Concentrate Alberto Gobbi, MD, FRACS ITALY
Human Umbilical Cord-Derived Mesenchymal Stem Cells Associated to Collagen Matrix for Knee Chondral Lesions Repair: Initial Clinical Experience Fabiano Kupczik, MD, PhD, MSc BRAZIL
Clinical Evaluation Of a Resurfacing Device Biopoly™ Implant For Femoral Osteochondral Defect Greater Than 1 Cm2 At Minimal 2 Years Follow-Up. A Prospective Cohort Study. François-Paul Ehkirch, MD FRANCE
Treatment Of Patellofemoral Chondral Lesions Through Micro-Fractures With Chitosan Scaffold: Clinical And Radiological Results Martin Contreras, MD CHILE
Increased MFC Width and Osteochondritis Dissecans: Cause or Effect and Implications for Osteochondral Allograft Transplantation Mitchell Scott Mologne, BS UNITED STATES
Can Robot-Assisted Total Knee Arthroplasty Be A Cost-Effective Procedure? A Markov Decision Analysis. Hannes Vermue, MD BELGIUM
Autologous Matrix-Induced Chondrogenesis (Amic) For Isolated Retropatellar Cartilage Lesions: Outcome After A Follow-Up Of Minimum Two Years Manuel Waltenspül, MD SWITZERLAND
Which Variables Predict Osteochondral Allograft Failure? William Bugbee, MD UNITED STATES
Radiological Outcomes Following Osteochondral Allograft With Fresh Pre-Cut Cores Versus Hemi-Condylar Allografts Michael J Alaia, MD UNITED STATES
Biological Subchondral Bone Treatment with Osteo Core Plasty: Preliminary Results Ignacio Dallo, MD SPAIN
Intra-Articular Injections Of Hyaluronic Acid Are Superior To Platelet-Rich Plasma For The Treatment Of Knee Osteoarthritis Luís Duarte Silva, MD PORTUGAL
Athletes Cope Better Than Non-Athletes Before Knee Cartialge Surgery; A Prospective Cohort Study David C. Flanigan, MD UNITED STATES
Imaging Evaluation Of Articular Cartilage Repair By Tissue Engineering: Pre-Clinical Study Joao Paulo Cortez Santanna, MD, MSc BRAZIL
The Demographics of Knee Cartilage Injuries in Soccer Players and Preferred Treatments Across Fifa Centers Of Excellence Niv Marom, MD ISRAEL
Comparison of the use of 3-D scaffolding vs microfractures in the repair of total chondral defects in the knee Jorge Nicolas Valladares, MD MEXICO
A PROSPECTIVE OBSERVATIONAL STUDY OF FUNCTIONAL OUTCOME OF AUTOLOGOUS LEUKOCYTE POOR PLATELET RICH PLASMA THERAPY FOR BILATERAL GRADE-IV OSTEOARTHRITIS KNEE. Umesha Chowdaiah, MBBS, D.Ortho, DNB (Ortho) INDIA
Patellofemoral Cartilage Restoration with Particulated Juvenile Allograft in Patients under 21 Years Old Daniel W. Green, MD, MS UNITED STATES
Application Of BMAC And PRF Combined With Microfracture For The Treatment Of Symptomatic Cartilage Defects In The Knee Tahsin Beyzadeoglu, MD, Prof. TURKEY
Does The Tidemark Location Matter In Osteochondral Allograft Transplantation? – A Finite Element Analysis Michael J Alaia, MD UNITED STATES
Short Term Results After Missouri Osteochondral Preservation System For Symptomatic Chondral Lesions Deryk G. Jones, MD UNITED STATES
Comparison Of Bone Marrow Aspirate Concentrate And Allogenic Human Umbilical Cord Blood Derived Mesenchymal Stem Cell Implantation On Chondral Defect Of Knee: Assessment Of Clinical And Magnetic Resonance Imaging Outcomes At 2-Year Follow-Up Dong Jin Ryu, MD, PhD. KOREA, REPUBLIC OF
Osteochondral Allograft Transplantation of the Knee in “Ideal” Candidates: Clinical Outcomes and Graft Survivorship William Bugbee, MD UNITED STATES
Serum cartilage oligomeric matrix protein is correlated with cartilage degenerative change on magnetic resonance imaging in patients with anterior cruciate ligament injury Yohei Nishida, MD JAPAN

Knee - Ligaments (Not ACL) (29 e-Posters)
Chronic Irreducible Knee Dislocations : Outcomes Following Open Reduction And Reconstructive Surgery. Dinshaw Pardiwala, MS(Orth), DNB(Orth), FCPS INDIA
Anatomical And Radiographic Attachments Of The Medial Collateral Ligament And The Posterior Oblique Ligament Lukas Willinger, MD GERMANY
The Anterolateral Ligament MRI Variability Viktor Kotiuk, MD, PhD UKRAINE
Doble Quadriceps Tendon Autograft For Multiligamentary Knee Reconstruction. An Opción For Acl - Pcl Reconstruction. Emiliano Luis Alvarez Salinas , MD ARGENTINA
Passive rotational tibiofemoral stability in patients undergoing pcl reconstruction – a prospective analysis of in vivo kinematics Stephan Oehme, MD GERMANY
Extra-articular Augmentation of ACL reconstruction Begad H. M. Z. Abdelrazek, M.Sc., MD, FRCS Trauma and Orthopedics EGYPT
All-Autograft Algorithm For Managing Multiligament Knee Injuries Iftach Hetsroni, MD, Associate Prof. ISRAEL
Single Femoral Tunnel For PCL And MCL Reconstruction Using Autografts- 2 Year Follow Up Munis Ashraf Keyi, MBBS, DNB (Orth), FASM, FSRM INDIA
Caton-Deschamps Index – A Predictor Of Outcome In Patients With Patellofemoral Instability? Joseph Michael Brutico, BS UNITED STATES
Anteromedial Rotatory Knee Instability – Much More Than The Medial Collateral Ligament Elmar Herbst, MD, PhD GERMANY
Do Mcl Grade 2 Lesions Influence The Outcome Of Anterior Cruciate Ligament Reconstruction?: A Prospective Study With A Minimum 14 Years Of Follow-Up Stefano Zaffagnini, MD, Prof. ITALY
Posterior Stress Radiographs In Internal Or External Rotation Do Not Add Any Value In The Diagnosis Of Combined Posterior Cruciate Ligament And Peripheral Knee Injuries. Thorben Briese, MD GERMANY
Bone Staples for Cortical Fixation of Tendon Grafts in Knee Surgery: A Biomechanical Study Johannes Glasbrenner, MD GERMANY
High Rate Of Return To Play Following Treatment Of Combined Ligament Knee Injuries In 118 Elite Athletes Kyle Borque, MD UNITED STATES
Anterior Cruciate Ligament (Acl) Reconstruction With Lateral Plasty Restores Anterior-Posterior Laxity In The Case Of Concurrent Partial Medial Meniscectomy Alberto Grassi, PhD ITALY
Mcl Repair Augmented With Suture Tape: A Biomechanical Study Carola F. van Eck, MD, PhD, FAAOS UNITED STATES
Functional Outcome Of A Combined Anterior Cruciate Ligament And Anterolateral Ligament Reconstruction. Gabriela Zermeno Garcia, MD MEXICO
Lateral Tenodesis Along With Acl Reconstruction In Patients With High Grade Pivot Shift: A Prospective Analysis In 70 Patients Rajiv Gupta, PhD INDIA
Radiographic Landmarks For The Femoral Attachment Of The Medial Patellofemoral Complex Rohan Bhimani, MD, MBA UNITED STATES
Comparison Of Outcomes For Medial Collateral Ligament Repair Versus Reconstruction: A Systematic Review Edward Floyd, MD, MS UNITED STATES
Clinical And Functional Outcomes Of Isolated Mpfl Reconstruction Versus Combined Reconstruction Of The Mpfl And Mqtfl At 2-Year Follow-Up: Preliminary Results Luís Duarte Silva, MD PORTUGAL
Percutaneous Arthroscopic Assisted Knee Medial Collateral Ligament Repair: A Novel Technique And Results George Jacob, MBBS, MS Ortho, FAOrthA INDIA
Injuries To The Anterolateral Ligament Are Observed More Frequently Compared To Lesions To The Deep Iliotibial Tract (Kaplan Fibers) In Anterior Cruciate Ligamant Deficient Knees Using Magnet Resonance Imaging (Mri) Armin Runer, PD MD GERMANY
Prognostic Factors for Poor Functional Outcomes in Knee Dislocations Treated by Multi Ligament Reconstructions. Robin Martin, MD SWITZERLAND
Tunnel Conflict Rate in Simultaneous ACL Reconstruction and Lateral Tenodesis can be Reduced by Altering the Femoral Tenodesis Insertion Site. Christoph Kittl, MD, MD(res) GERMANY
Isolated lateral collateral ligament injuries encountered in combat sports: what is the optimal treatment? Nicole Danielle Rynecki, MD UNITED STATES
Lower failure rates after adding a lateral extra-articular augmentation to revision ACL reconstruction: a comparative series Juan Pablo Zicaro, MD ARGENTINA
High Incidence Of Osteoarthritis Observed In Patients At Short- To Mid-Term Follow-Up After Delayed Multiligament Knee Reconstruction Camilo P. Helito, MD, PhD, Prof BRAZIL
Low Return To Pre-Injury Level Of Sports After Multi-Ligament Knee Injury Jacco A. C. Zijl, MD NETHERLANDS

Knee - Meniscus (40 e-Posters)
2 Year Outcomes of Lateral Meniscal Oblique Radial Tear (LMORT) Repair at the Time of ACL Reconstruction Surgery Erik Therrien, MD, MSc, FRCSC CANADA
Satisfactory Results Using A Novel Technique For The Fixation Of Posterior Lateral Meniscus Root In Acute Lesions With Concomitant Anterior Cruciate Ligament Injuries. German Alejandro Jaramillo, MD. Ortopaedic Surgeon, Sport Med COLOMBIA
Mind the anterior root of the lateral meniscus. A biomechancial perspective. Alejandro Espejo-Reina, MD, MSc SPAIN
Clinical and Magnetic Resonance Imaging Outcomes of Repaired Longitudinal Tears of Medial Meniscus in Anterior Cruciate Ligament Reconstruction Knee Sang Hak Lee, MD, PhD KOREA, REPUBLIC OF
Degeneration Affects Local Meniscus Extrusion And Related Biomechanical Properties In OA Patients Andreas M. Seitz, PhD GERMANY
Impact of Number of Inside-Out Sutures on Meniscal Repair Failure Robert A Magnussen, MD, MPH UNITED STATES
Psychometric Outcomes Of PRP After ACL Reconstruction With Meniscal Repair Brian Randall Duncan, PT, DPT UNITED STATES
The Reliability Of 3-Tesla Mri To Identify Arthroscopic Features Of Meniscus Tears And Its Utility To Predict Meniscus Tear Reparability Thomas J. Kremen, MD UNITED STATES
Hypermobile Lateral Meniscus Fixation Is A Successful Treatment In Soccer Players. Gilbert Steinbacher, MD SPAIN
Contact Characteristics Analysis Of All-Inside Suture Technique In Displaced Medial Meniscus Tears Of Porcine Knee Supanut Weraarchakul, MD THAILAND
Degenerative Meniscal Tears: A Comparison Of Postoperative Outcomes Following Meniscectomy With And Without Bone Marrow Aspirate Concentrate Iciar M Davila Castrodad, MD UNITED STATES
Progenitor Cells with High Chondrogenic Potential are Present in the Adult Human Meniscus Jasmijn Korpershoek, MD NETHERLANDS
Investigation of the Effect of Focal Cartilage Lesions in the Same Compartment of Knees Undergoing Arthroscopic Partial Medial Meniscectomy: Long-Term Follow up. Halit Pinar, MD, Prof. TURKEY
Short Term Clinical Outcome After Medial Meniscus Posterior Root Tear Repair Ingebjorg Lokensgard Strand, MD NORWAY
Grade III Pivot Shift as an Early Sign of Knee Decompensation in Chronic ACL-Injured Knees with Bimeniscal Tears Amanda Magosch, Cand. med. LUXEMBOURG
What Is The Failure Rate After Arthroscopic Repair Of Bucket-Handle Meniscal Tears? A Systematic Review And Meta-Analysis. Giuseppe Gianluca Costa, MD ITALY
Clinical outcomes in meniscal allograft transplantation using FastFix 360 Juan Ignacio Erquicia, MD, PhD SPAIN
Arthroscopic Meniscectomy In NCAA Division I Football Players: Return To Sport May Be Longer Than Expected Seth C. Gamradt, MD UNITED STATES
Securing Transplanted Meniscal Allografts Using Bone Plugs Results In Lower Risks Of Graft Failure Zachariah Gene Wing Ow, MBBS (Candidate) SINGAPORE
Meniscal Extrusion Was Associated To Early Oa On Mri After Surgery For Disco Id Lateral Meniscus Kazuya Nishino, MD JAPAN
Clinical And Radiologic Predictors Of Outcome Following Transtibial Posterior Root Medial Meniscus Repair Heath Patrick Gould, MD UNITED STATES
Orthopedic Sports Medicine Topics Rank Low A Consensus Study From Local And International Experts On A Musculoskeletal Curriculum In Southern Africa. Michael Held, MD, PhD SOUTH AFRICA
Instability of the posterior horn of the lateral meniscus in ACL injured patients: A comparison between two arthroscopic diagnostic tests. Christophe Jacquet , MD LUXEMBOURG
Failure Rates And Outcome Scores Following Meniscus Repair In Pediatric Patients: A Matched Cohort Study. David C. Flanigan, MD UNITED STATES
Arthroscopic Repair Of Meniscal Injuries In Patients Over 40 Years Of Age. Results With A Minimum Follow-Up Of 2 Years Horacio F. Rivarola-Etcheto, MD ARGENTINA
A comparison of the transtibial pullout technique and all-inside meniscal repair in medial meniscus posterior root tear: Prognostic factors and midterm clinical outcomes Lika Dzidzishvili, MD, PhD SPAIN
Polyurethane Meniscal Scaffold For The Treatment Of Partial Meniscus Deficiency: Five Year Follow-Up Outcomes. An European Multicentric Study Aad A. Dhollander, MD, PT, PhD BELGIUM
Incidence Of Meniscal Ramp Lesion In 824 Anterior Cruciate Ligament Reconstruction Vitor Barion Castro De Padua, PhD BRAZIL
Association Between Meniscal Allograft Tears and Early Surgical Meniscal Allograft Failure Philipp Wilhelm Winkler, MD, Assoc. Prof. AUSTRIA
Implications of Surgical Delay in Meniscal Tears Associated with Anterior Cruciate Ligament Injury. Fernando Chico-Carpizo, MD MEXICO
Meniscus Tear Repair Within 3 Weeks After Trauma: statistically proven better results than later repairs. Results of A Single Surgeon Series Of 112 Repairs. Diederick Bernard Wouters, MD, PhD NETHERLANDS
Avoiding Tunnel Convergence for Posterior Meniscal Root Repair During Anterior Cruciate Ligament Reconstruction Charles M. Chan, MD UNITED STATES
ACL injury associated meniscus tears in pediatric and adolescent patients: incidence, management and outcome Luca Rigamonti, MD ITALY
Clinical Outcomes And Return To Sports After Arthroscopic Saucerization And Preservation For Discoid Lateral Meniscus. Yutaro Ishida, MD JAPAN
Minimum 10-Year Clinical Outcome Of Lateral Collagen Meniscus Implants (Cmi) For The Replacement Of Partial Lateral Meniscus Defects. Alberto Grassi, PhD ITALY
Ramp lesions are six times more likely to be observed in the presence of a posteromedial tibial bone bruise in ACL-injured patients Wouter Beel, MD CANADA
Osteotomy for degenerative meniscus lesions Satomi Abe, MD, PhD JAPAN
Meniscal Root Repair In Pediatric Patients: Minimum 2-Year Outcomes Crystal A. Perkins, MD UNITED STATES
Concomitant Repair of medial and lateral meniscus tears: Does it work? David C. Flanigan, MD UNITED STATES
Prevalence Of Cartilage Lesions In Patients Undergoing Meniscal Surgery, A Cross-Sectional Study Eduardo Gardella, MD CHILE

Knee - Osteotomy (26 e-Posters)
The Development of the Quantitative Evaluation of Hinge Area and Length after Open Wedge High Tibial Osteotomy Kiminari Kataoka, MD JAPAN
Increasing The Posterior Tibial Slope Lowers In-Situ Forces In The ACL Philipp Wilhelm Winkler, MD, Assoc. Prof. AUSTRIA
5 Years Of Clinical And Radiological Results With Biplanar Tibial Open-Wedge Osteotomy: Feasible Option To Prevent Patella Infera? Matteo Baldassarri, MD ITALY
Analysis of bone union after biplanar medial closing wedge distal femoral osteotomy Takehiko Matsushita, MD, PhD JAPAN
Changes In Sagittal And Axial Plane Alignment In Medial Opening Wedge High Tibial Osteotomy: A Prospective Observational Study Tarun Goyal, MBBS, MS, DNB, MCh, FRCS (Edin) INDIA
Patellofemoral Osteoarthritis Progresses after Medial Open Wedge High Tibial Osteotomy: A Systematic Review Kiminari Kataoka, MD JAPAN
Proximal Tibial Varus Osteotomy For Valgus Knee. Vitor Barion Castro De Padua, PhD BRAZIL
Simultaneous Bilateral Opening Wedge High Tibial Osteotomy With Structural Allograft Impaction Results In Excellent Early Recovery And Pain Reduction Similar To Unilateral Osteotomy Jef Neirynck, MD BELGIUM
Difference In Patellofemoral Osteoarthritis After Medial Open Wedge High Tibial Osteotomy According To The Preexisting Cartilage Status Bo-Ram Na, MD KOREA, REPUBLIC OF
Tibial Slope Can Be Maintained During Medial Opening Wedge Proximal Tibial Osteotomy Joseph J. Ruzbarsky, MD UNITED STATES
Evaluation Of Cartilage Repair After Open-Wedge High Tibial Osteotomy Using T2 Mapping Methods Ken Iida, MD JAPAN
Pain And Gait At Different Exercise Intensities Are No Different After Medial Opening Wedge High Tibial Osteotomy Compared To Age-Matched Controls James Belsey, PhD UNITED KINGDOM
SPECT/CT Helps Predict Degree of Clinical Improvement Following Medial Opening-Wedge High Tibial Osteotomy Yong Gyu Sung, MD KOREA, REPUBLIC OF
Correlation Between The Degree Of Osteoarthritis And The Clinical Outcome Of Mid-Term To Long-Term Follow-Up In High Tibial Osteotomy Umit Kuwa, MD, PhD JAPAN
Physical Activity Levels And Clinical Outcome After High Tibial Osteotomy With And Without Allograft Bone Wedges James Belsey, PhD UNITED KINGDOM
Alignment Adjustment Using The Valgus Stress Technique Can Increase The Surgical Accuracy Of Novice Surgeons During Medial Opening-Wedge High Tibial Osteotomy Man-Soo Kim, MD, PhD KOREA, REPUBLIC OF
Changes in coronal alignment of the hip joint after Medial Opening High Tibial Osteotomy Reece Patel, BA UNITED KINGDOM
Multiple Factors Influence The Decision To Return To Physical Activity After High Tibial Osteotomy: A Qualitative Approach James Belsey, PhD UNITED KINGDOM
Minimal Clinically Important Difference (MCID) In WOMAC Score And Factors Related To Achievement Of WOMAC Score MCID After Medial Opening Wedge High Tibial Osteotomy For Knee Osteoarthritis Dong-Chul Park, MD KOREA, REPUBLIC OF
Algorithm In The Indication Of Osteotomy Of The Anterior Tuberosity Of The Tibia In The Treatment Of Patellofemoral Instability Rodrigo Maestu, MD ARGENTINA
The Importance of Limb Alignment on Patient Reported Outcome Following High Tibial Osteotomy Gwenllian F. Tawy, PhD, MRes, BSc(Hons) UNITED KINGDOM
Outcome Of High Tibial Osteotomy For Kellgren-Lawrence Grade Iii/Iv Knee Osteoarthritis: Two To Nine Years Follow-Up Priyadarshi Amit, MS, DNB, MRCSEd, MCh, FRCS UNITED KINGDOM
Lateral Opening Wedge High Tibial Osteotomy Combined With Lateral Meniscus Allograft Transplantation Peter T. Myers, AM, MBBS, FRACS, FAOrthA AUSTRALIA
Analysis of poor clinical outcome after opening-wedge high tibial osteotomy over 65 years old Shuhei Otsuki, MD JAPAN
Efficacy of an accelerated rehabilitation protocol after Tibial Tubercle Osteotomy for the surgical treatment of Recurrent Patella Instability Ryan M Bell, BS UNITED STATES
Reliability Of Preoperative Planning Method Considering Latent Medial Joint Laxity In Medial Open-Wedge High Tibial Osteotomy Dong Jin Ryu, MD, PhD. KOREA, REPUBLIC OF

Knee - Other (55 e-Posters)
Management Of Septic Knee Arthritis In The Emergency Department Of A Tertiary Hospital Blanca Varas Varas, MD SPAIN
Bowlegs In Soccer Players - Overuse Of Knee Growth Plates? Zmago Krajnc, PhD SLOVENIA
Tibial Plateau Slope As Risk Factor Among Filipino Patients With Anterior Cruciate Ligament Injury: A Single Center Study John Christopher Ramos Ragasa, MD PHILIPPINES
3D Evaluation Of The Femoral Coronal Alignment Considering Navigation-Aided Surgery Of Total Knee Arthroplasty Atsushi Sato, MD, PhD JAPAN
Comparable kinematic behaviour between an ultracongruent and a posterior stabilized total knee arthroplasty design during in vivo sit-to-stand Stefano Zaffagnini, MD, Prof. ITALY
Clinical Parameters Based Criterion (Cpc) Mathematical System For Categorization And Prioritization Of The Patients Waiting For Knee Arthroplasty. Mujeeb Ashraf, FRCS, MCh,FEBTS SAUDI ARABIA
The Use Of Gentamicin-Clindamycin Loaded Bone Cement For Total Knee Arthroplasty Exchange. Jean-Yves Jenny, Prof. FRANCE
Short-Term Clinical Results And Periprosthetic Bone Mineral Density After The Attune Cementless Total Knee Arthroplasty Kenichi Kikuchi, Dr JAPAN
Opening Wedge High Tibial Osteotomy for Medial Compartment Knee Osteoarthritis: Planning for Improving Outcomes without lateral compartment overloading Joshua Rory Buksbaum, BS UNITED STATES
Pediatric Reference Anatomy For Anterolateral Ligament Reconstruction– A Cadaveric Study Marc Tompkins, MD UNITED STATES
Prioritized Challenges In The Management Of Acute Knee Dislocations Are Stiffness, Obesity, Treatment Delays, And Associated Limb Threatening Injuries. A Global Consensus Study. Michael Held, MD, PhD SOUTH AFRICA
Poly-L Lactic Acid Mesh Augmentation Improves Cyclic Gap Formation In Transosseous Patellar Tendon Repair: A Biomechanical Study Heath Patrick Gould, MD UNITED STATES
Surgical Timing Does Not Interfere On Clinical Outcomes In Combined Reconstruction Of The Anterior Cruciate Ligament And Anterolateral Ligament: A Comparative Study With Minimum 2-Year Follow-Up Camilo P. Helito, MD, PhD, Prof BRAZIL
Preliminary Results With The Use Of Polylactic Acid (Pla)-Antibiotic Coated Nail In Open Tibial Shaft Fractures Akash Singhal, MS INDIA
The Gastrocnemius Flap In The Salvage Revision Knee Arthroplasty Robert Mcculloch, MBChB MSc FRCS (Tr&Orth) UNITED KINGDOM
Correlation Of The Squat-And-Smile Test Against Other Patient Reported Outcome Scores In Knee Pathology. Johan Le Roux, FC Ortho, MMed, DA (SA), MB,ChB SOUTH AFRICA
Subchondroplasty Of Bone Marrow Lesion After Failed Nanofracture: Case Report Robi Kelc, MD, PhD SLOVENIA
Lateral Release With Tibial Tuberosity Transfer Alters Patellofemoral Biomechanics Promoting Multidirectional Patellar Instability Umile Giuseppe Longo, MD, MSc, PhD, Prof. ITALY
Arthroscopic tri-pulley Technology reduction and internal fixation of pediatric Tibial Eminence fracture Liang Zhang, MD CHINA
An Athletic State Of Mind; Not That Different Than The Non-Athletic State Of Mind David C. Flanigan, MD UNITED STATES
Cannabis Use In Patients Undergoing Knee Arthroscopy Is Associated With Less Postoperative Opioid Use And Fewer Thromboembolic Complications Christopher L. McCrum, MD UNITED STATES
Our Experience In The Management Of Periprosthetic Fractures After Total Knee Arthroplasty With Revision Arthroplasty Víctor Vaquerizo García, MD, PhD SPAIN
Surgical management of severe post-traumatic arthrofibrosis of the knee: clinical results in workers´compensation population Jose Ignacio Laso, Md CHILE
Bicruciate-retaining total knee arthroplasty with spacer-based gap balancing technique Caroline Perreault, MD student CANADA
Routine Early Post-Operative Dosage Of Hemoglobin Does Not Impact Transfusion Rate After Total Knee Arthroplasty Jean-Yves Jenny, Prof. FRANCE
The Use Of Calcium Sulfate Hemihydrate As A Local Carrier For Antibiotics In The Treatment Or Prevention Of Orthopedic Infections Timothy Culbertson, BS UNITED STATES
Correlation between tibial bone morphology and changes in joint line convergence angle Junya Itou, MD, PhD JAPAN
Is Articular Reconstruction Feasible In Ota- C2, C3 Comminuted Patellar Fractures?"- A Novel Technique For Patellar Articular Reconstruction And Fixation. Raghavendra Raju, MBBS,MS INDIA
Appropriateness of Knee Imaging Prior to Referral to an Orthopaedic Surgeon in Middle Aged and Elderly Patients with Knee Pain Varies by Referral Source and is Often Inappropriate or Insufficient. Michael Gibbons, BA, MD (in 2022) UNITED STATES
Revision Of The Modified Achilles Tendon Allograft Treatment For Chronic Patellar Tendon Ruptures In Tka. Adrian Aziz Cortes De La Fuente, MD MEXICO
Management Of Periprosthetic Fractures Of Distal Femur After Total Knee Arthroplasty: Our Experience Víctor Vaquerizo García, MD, PhD SPAIN
Concomitant Injury to Kaplan Fibers in Acute ACL Injury Does Not Affect the Pivot-shift Phenomenon Shu Watanabe, MD JAPAN
Highest Body Mass Index is Seen in Younger Patients Undergoing Total Knee Arthroplasty with Increased Length of Stay and Risk of Complications Sven Edward Putnis, MB ChB FRCS(Tr&Orth) UNITED KINGDOM
Epsilon Aminocaproic Acid (EACA) and Tranexamic Acid (TXA) in Total Knee Arthroplasty (TKA) - A Prospective Randomized Trial João P.F. Guerreiro, MD, PhD BRAZIL
Biomechanical Assessment Of The Prepatellar Quadriceps Continuation Maximiliano Andres Barahona, MD, MSc CHILE
Orthopaedic Residents Skills Improvement due to Arthroscopic Cadaveric Knee Practices Sergi Gil Gonzalez, MD SPAIN
Effect Of Different TKA Stem Features In Total Knee Arthroplasty: A Biomechanical Study Bernardo Innocenti, PhD BELGIUM
The Effect of Polyethylene Thickness on Revision Rates of Contemporary Cruciate Retaining Knee Replacements. A Registry Analysis. Christopher J. Wilson, A/Prof, MBChB, MRCS, FRACS, PhD AUSTRALIA
Intentional Flexion Of Femoral Component - A Method To Balance Flexion And Extension Gaps In Navigated Total Knee Replacement Praveen R G, MBBS MS ortho DNB ortho INDIA
Functional Outcomes After Endoprosthetic Reconstruction In Osteosarcoma Patients: An Indian Scenario Akash Singhal, MS INDIA
Primary Constrained-Condylar-Knee Designs Outperform Posterior-Stabilized And Cruciate-Retaining Designs In High Grade Varus Osteoarthritic Knees. William Leo Colyn, MD BELGIUM
The Natural Evolution Of Constitutional Varus William Leo Colyn, MD BELGIUM
Ocd Lesions Of The Knee: A Systematic Review And Meta-Analysis Of Male Versus Female Clinical Outcomes Mary K. Mulcahey, MD UNITED STATES
Wearable System Embedding Flexible Textile-Based Strain Sensor For Monitoring Knee Joint Umile Giuseppe Longo, MD, MSc, PhD, Prof. ITALY
Adjunctive Use of Implant-Mediated Guided Growth with Tension Band Plate in Skeletally Immature Patients with Primary Intra-Articular Knee Pathology Daniel W. Green, MD, MS UNITED STATES
Brace before you replace? Our clinical experience of 540 consecutive knees. Lucy Oliver- Welsh, MBBS, MRCS UNITED KINGDOM
Bi-cruciate retaining versus posterior stabilized total knee arthroplasty at two years follow up in a prospective controlled trial Theofylaktos Kyriakidis, MD, MSc, PhD GREECE
Comparative Study Between Enoxaparin And Acetylsalicylic Acid In Antithrombotic Prophylaxis For Patients Undergoing Elective Total Knee Arthroplasty Adrian Aziz Cortes De La Fuente, MD MEXICO
CT Validation of Intraoperative Implant Position and Knee Alignment as Determined by the MAKO Total Knee Arthroplasty System Christopher J. Wilson, A/Prof, MBChB, MRCS, FRACS, PhD AUSTRALIA
No Difference In Complication, Reoperation And Readmission Rates After Fast-Track Or Out-Patient Total Knee Arthroplasty Jean-Yves Jenny, Prof. FRANCE
Outcomes After Repair Of Quadriceps Tendon Rupture In Patients 40 Years Of Age And Younger Peters T. Otlans, MD, MPH UNITED STATES
Complications In Simultaneous Bilateral Total Knee Arthroplasty; Is A Safe Procedure? Tomas Alfredo Esteves, MD ARGENTINA
Accuracy of Bone Resection in MAKO Total Knee Robotic-Assisted Surgery Christopher J. Wilson, A/Prof, MBChB, MRCS, FRACS, PhD AUSTRALIA
Patient Specific Alignment is the Key Attribute of Robotically Assisted Surgery. A Comparative Trial with 120 Patients. Philip Winnock De Grave, MD BELGIUM
MRI Evaluation of the Peripheral Stabilizing Attachments of the Lateral Meniscal Body: The Menisco-Tibio-Popliteus-Fibular Complex. Assessment in Routine 1.5-T Scans. Rodolfo Morales-Avalos, MD, PhD. MEXICO

Knee - Patellofemoral (34 e-Posters)
MPFL Length Change Patterns In Asymptomatic Knees Of Patients With Contralateral Patellar Instability Miho J. Tanaka, MD, PhD UNITED STATES
Validation of the Spanish Version of the Patellofemoral Pain and Osteoarthritis Subscale of the KOOS (KOOS-PF) Juan Pablo Martinez-Cano, MD, MSc, PhD COLOMBIA
Acute Patella Instability Injuries In The NFL: Who Gets Them, What Is The Treatment, And Outcome? An Analysis Of Injuries From Nfl Database Jason L. Koh, MD, MBA UNITED STATES
Biomechanical Evaluation Of Two Non-Anatomic Patellar Fixation Techniques In Medial Patellofemoral Ligament Reconstruction Vasileios Raoulis, MD, PhD GREECE
Isolated Lateral Release For Chronic Patella Instability: Increased 5 Year Revision Rate As Compared To A Cohort Undergoing Medial Patellofemoral Reconstruction Adam Money, MD UNITED STATES
Medial Patellofemoral Ligament Reconstruction with Medial Third of Patellar Tendon in the Treatment of Recurrent Patellar Instability: Medium and Long-term Results Fabiano Kupczik, MD, PhD, MSc BRAZIL
Onlay Patellofemoral Arthroplasty In Patients With Isolated Patellofemoral Arthritis: A Systematic Review Howard Nelson-Williams, MD, MPH UNITED STATES
Using the TTTG Measurement to Determine Surgical Management of Patellofemoral Instability Megan Diack, MBCHB, MRCSI, MCh IRELAND
Lateral Retinacular Release In Concordance With Medial Patellofemoral Ligament Reconstruction In Patients With Recurrent Patellar Instability – A Computational Model Umile Giuseppe Longo, MD, MSc, PhD, Prof. ITALY
A Cadaveric Study Of The Radiological Anatomy Of The Patella: Implications To Avoid Complications During Tunnel Placement In Mpfl Reconstruction Procedures Vasileios Raoulis, MD, PhD GREECE
Failures And Complications With Mpfl Reconstruction:Our Experience In 215 Patients. Piyush Setia, MS,MRCS INDIA
The Extent Of Medial Quadriceps Tendon Femoral Ligament (Mqtfl) Patellar And Quadriceps Attachment: A Pediatric Cadaveric Study Marc Tompkins, MD UNITED STATES
Patelloplasty Versus Traditional Patellar Retention In Tka Vitor Barion Castro De Padua, PhD BRAZIL
MPFL Reconstruction Using A Superficial Quadriceps Tendon Autograft Is Cost-effective Procedure and Offers Satisfactory Functional Results Saroj Rai, MD, PhD UNITED ARAB EMIRATES
Isolated Medial Patellofemoral Ligament Reconstruction for the Treatment of Acute or Recurrent Patellar Instability: a Systematic Review and Meta-Analysis Maarten Mertens, MD BELGIUM
Outcomes After Axial Alignment Correction For Patellofemoral Instability Kristen I Barton, MD, PhD CANADA
Patella Alta, Thochlear Dysplasia and Age are Risk Factors for Recurrent Patellofemoral Dislocation after a First Episode Juan Pablo Martinez-Cano, MD, MSc, PhD COLOMBIA
Evaluating the Correlation Between Several Patellar Measurements and Patient’s Height and Weight - Matched Case-Control Study. Ahmad Essa, MPH MD ISRAEL
Weight Bearing versus Conventional CT for the Measurement of Patellar Alignment and Stability in patients After surgical treatment for Patellar Recurrent Dislocation. Giulio Maria Marcheggiani Muccioli, MD, PhD, Associate Professor ITALY
Management of First-Time Patellar Dislocation: A Survey of Prism Members Shital N. Parikh, MD UNITED STATES
Patella Dislocation Is Associated With Increased Tibial But Not Femoral Rotational Asymmetry Simon Talbot, MBChB, FRACS AUSTRALIA
Autograft Versus Allograft For Medial Patellofemoral Ligament Reconstruction: A Systematic Review Matthew J. Kraeutler, MD UNITED STATES
Revisiting The Rationale For Patella Resurfacing In Total Knee Replacements. Vitali Goriainov, FRCS (Orth), BM, PhD, MSc UNITED KINGDOM
Role of patella height on retropatellar contact dynamics after total knee arthroplasty Thomas Tischer, Prof. Dr. GERMANY
Influence of Patellofemoral Anatomy on Outcomes of Isolated Medial Patellofemoral Ligament Reconstruction for Patellar Instability Robert A Magnussen, MD, MPH UNITED STATES
Utility Of Dynamic Ultrasound In The Assessment Of Patellar Instability Rohan Bhimani, MD, MBA UNITED STATES
Radiographic Parameters Predicting Outcomes Following Medial Patellofemoral Ligament Reconstruction And Tibial Tubercle Osteotomy In The Treatment Of Patellar Instability Michael J Alaia, MD UNITED STATES
No Differences In Failure Rates or Patient Reported Outcomes For Medial Patellofemoral Ligament Reconstruction With Or Without Lateral Retinacular Release Evan Miller, MD UNITED STATES
Comparison Study Between Mobile Bearing And Medial Pivot Total Implants In Total Knee Arthroplasty In Management Of Osteoarthritis Of The Knee Dicky Mulyadi, MD, PhD INDONESIA
Outcomes for Primary versus Revision Medial Patellofemoral Ligament Reconstruction with Concomitant Tibial Tubercle Osteotomy Elizabeth Rose Dennis, MD MS UNITED STATES
Ultrasound-guided Injections and Arthroscopic Surgery as Treatment of Medial Plica Syndrome of the Knee Joyce van Heeswijk, MSc NETHERLANDS
Time to return to sport after MPFL reconstruction surgery: patients with chronic instability vs patients with acute instability Robert A Magnussen, MD, MPH UNITED STATES
Evaluation Of MPFL Reconstruction Using A Large National Database: Demographic Information, Concomitant Procedures, Complications, And Payments. Adam Money, MD UNITED STATES
Posterior Sagittal Position Of The Tibial Tubercle In Patients With Operative Patellofemoral Chondral Lesions As Measured By The Sagittal Tibial Tubercle-Trochlear Groove Distance Michael J Alaia, MD UNITED STATES

Shoulder - Arthroplasty (15 e-Posters)
Reverse Shoulder Replacement: Incidence Rates, Complications, And Outcomes In 2638 Patients As Reported By Abos Part Ii Candidates From 2005 Through 2017 Stephen C. Weber, MD UNITED STATES
Health Literacy in Shoulder Arthroplasty: A Quantitative Assessment of the Readability, Understandability, And Actionability of Online Patient Education Material Alan Shamrock, MD UNITED STATES
Midterm Results Of Two-Stage Revision Surgery For Periprosthetic Shoulder Infection Stephen C. Weber, MD UNITED STATES
A 3-Dimensional Classification of Degenerative Arthritis of the Shoulder based on Humeroscapular Alignment Benjamin Daniel Kleim, MBBS, MD, MRes GERMANY
Best Way To Correct Reverse Shoulder Arthroplasty Angle In E1 And E3 Favard’S Glenoids. Michele Paciotti, MD ITALY
Outpatient Vs. Inpatient Anatomic Total Shoulder Arthroplasty: Outcomes And Complications Brandon Erickson, MD UNITED STATES
Lateralized Glenosphere Reverse Shoulder Arthroplasty: Inlay And Onlay Designs Have Similar Clinical Outcomes In Patients With Glenohumeral Osteoarthritis Prashant Meshram, MBBS, MS, DNB (Ortho) UNITED ARAB EMIRATES
Reverse Total Shoulder Arthroplasty For Glenoid Bone Loss Without A Rotator Cuff Tear: A Concise Follow Up At A Minimum Of Five Years Stephen C. Weber, MD UNITED STATES
Subscapularis-Sparing Approaches In Shoulder Arthroplasty: A Systematic Review Moin Khan, MD, MSc, FRCSC CANADA
Clinical And Patient-Reported Outcomes Of Reverse Shoulder Arthroplasty In Patients Receiving Social Security Disability Insurance Or Workers’ Compensation Prashant Meshram, MBBS, MS, DNB (Ortho) UNITED ARAB EMIRATES
The Association of Charlson and Elixhauser Comorbidity Indices and Patient-Reported Outcomes in a Population Undergoing Shoulder Arthroplasty William A. Marmor, MD UNITED STATES
Evaluation Of Short To Mid-Term Outcomes Following Shoulder Hemiarthroplasty For Avascular Necrosis Of The Humeral Head In Patients 40 Years And Younger Edward C Beck, MD, MPH UNITED STATES
Outpatient Vs. Inpatient Reverse Total Shoulder Arthroplasty: Outcomes And Complications Brandon Erickson, MD UNITED STATES
Epidemiology, Treatment Concepts And Complications After Periprosthetic Humeral Fractures - A Multicenter Data Analysis Sandra Boesmueller, MD, PhD AUSTRIA
Do Pre-Operative Opioid Use And Chronic Post-Operative Dependence Affect Outcomes After Reverse Shoulder Arthroplasty? Prashant Meshram, MBBS, MS, DNB (Ortho) UNITED ARAB EMIRATES

Shoulder - Instability (24 e-Posters)
How Glenohumeral Stability Is Affected by Concavity, Chondral Integrity, Bony Defects, and Bone Block Reconstructions of the Glenoid Jens Wermers, Prof. GERMANY
Diagnostic Value Of Measurements Methods For Bony Bankart Lesions Mirco Sgroi, MD GERMANY
Outcomes Of Arthroscopic Shoulder Stabilization At The United States Naval Academy: 5-Year Follow-Up Bobby Yow, MD UNITED STATES
Clinical outcomes of Arthroscopic Latarjet as a Revision Surgery after Failed Arthroscopic Bankart Repair Lika Dzidzishvili, MD, PhD SPAIN
Benefits Of The Recenter: An Arthroscopic Bankart Repair Augmentation For Recurrent Anterior Shoulder Instability With Minimum 2-Year Follow-Up Kevin Picard, MD FRANCE
Diagnostic Value Of Various Measurement Methods For Hill-Sachs Lesions Mirco Sgroi, MD GERMANY
Outcomes Of Arthroscopic Latarjet As A Revision Procedure For Treatment Of Recurrent Anterior Shoulder Instability After Failed Arthroscopic Bankart Repair. A Case Series Lika Dzidzishvili, MD, PhD SPAIN
Arthroscopic Reconstruction of the Glenoid Labrum with a Collagen Membrane Scaffold Maristella Francesca Saccomanno, MD, PhD ITALY
High Correlation Between Inner And Outer Glenoid Circle Diameters And Its Clinical Relevance. Comparison Of The Itoi And Sugaya Circles In Glenoid Bone Loss Antonio Arenas-Miquelez, MD, FEBOT AUSTRALIA
Does The Posterior Glenoid Osteotomy Reduce The Rate Of Recurrence Inpatients With Posterior Shoulder Instability – A Systematic Review. Shahbaz S Malik, BSc, MB BCh, MSc (Orth Engin), LLM, FRCS (Tr&Orth) UNITED KINGDOM
Recurrence of Arthroscopic Bankart Remplissage Reconstruction of Antero-inferior Shoulder Instability: Comparison between Collision vs. Non-Collision Athletes Pablo A. Narbona, MD ARGENTINA
T2 Mapping Quantitative MRI Evaluation of Operatively Treated Anterior Shoulder Instability Forrest L. Anderson, MD UNITED STATES
Reliability Of A Three-Dimensional Evaluation Of Bipolar Bone Defects In Anterior Gleno-Humeral Instability Giuseppe Bertoni, MD ITALY
Quality of life following an open Latarjet-Bristow procedure In a general population with a recurrent anterior shoulder Instability Collen Sandile Nkosi, MBChB, MMed ortho surg , FC Ortho (SA) SOUTH AFRICA
Return To Sport After Surgical Management Of Posterior Shoulder Instability: A Systematic Review And Meta-Analysis Kyle Gouveia, MD CANADA
An Arthroscopic Bone Block Procedure is Effective in Restoring Stability, Allowing Return to Sports in Cases of Glenohumeral Instability with Glenoid Bone Deficiency Ettore Taverna, MD ITALY
A New Mini-Open Technique Of Arthroscopically Assisted Latarjet Ettore Taverna, MD ITALY
Button Fixation Does Not Affect the Learning Curve and Short-Term Radiographic Outcomes for Arthroscopic Anatomic Glenoid Reconstruction with Distal Tibia Allograft Ivan Wong, MD, FRCSC, MACM, Dip. Sports Med CANADA
Micromotion Of Symmetry And Asymmetry Prostheses Designs With Different Curvature And Variable Peg Length Cemented And Uncemented Using Finite Element Analysis. Farid Amirouche, PhD UNITED STATES
The Early And Encouraging Results Of Suture Tape For Glenoid Labral Repair In Shoulder Stabilisation Neil Jain, BM, MRCS(Ed), FRCS(Tr&Orth) UNITED KINGDOM
Latarjet-Patte Procedure Vs Modified Bristow-Latarjet Repair For Recurrent Anterior Dislocation Of The Shoulder. Our Experience In The Last 15 Years. Maximiliano Ibañez, MD SPAIN
Arthroscopic Bankart Repair Using Clavicle Autograft in High Risk Patients Jeffrey S. Abrams, MD UNITED STATES
Reconstruction With Tricortical Iliac Bone Graft In Patients With Shoulder Recurrent Anterior Instability With Bone Loss A Modified Eden Hybinette Technique Octavio Martinez Montiel, MD MEXICO
Health Literacy in Shoulder Labral Repair: A Quantitative Assessment of the Understandability and Readability of Online Patient Education Material Alan Shamrock, MD UNITED STATES

Shoulder - Other (38 e-Posters)
Latarjet Vs Coracoid Free Graft For The Treatment Of Glenohumeral Anterior Instability In Patients Older Than 40 Years Peter Domos, MD, FRCS(Tr&Orth) UNITED KINGDOM
Anchor Arthropathy Of The Shoulder Joint After Instability Repair: Outcomes After Failed Instability Repair Due To Arthropathy Matthew T. Provencher, MD UNITED STATES
Coracoclavicular Fixation Techniques For Neer IIb And ‘Extra-Lateral’ Fractures Of The Distal Clavicle: A Systematic Review And Case Series Andreas Panagopoulos, Professor GREECE
Establishing Minimal Clinically Important Difference In The Shoulder Activity Level Rating Scale After Shoulder Surgery Jonathan T. Bravman, MD UNITED STATES
Latarjet After Failed Bankart Repair Benjamin Marjanovic, MD SLOVENIA
Is Interposition Allograft Bridging Reconstruction Appropriate in Patients Older Than 60 Years Old? A Retrospective Mid-Term Analysis Ivan Wong, MD, FRCSC, MACM, Dip. Sports Med CANADA
Failure After Arthroscopic Acromioclavicular Fixation Using Tight Rope; Is It Related To Coracoid Tunnel Dilatation! A Ct Based Study Mohamed Refaat Waly, MD,MRCS EGYPT
Development Of An Experimental Model Of Glenohumeral Osteoarthritis: Effect Of Arthroscopic Tenotomy Of The Long Head Of The Biceps Tendon And Section Of The Anterior Joint Capsule Umile Giuseppe Longo, MD, MSc, PhD, Prof. ITALY
Osteochondritis Dissecans Of The Glenoid : An Analysis Of Grades, Treatment And Outcomes. Dinshaw Pardiwala, MS(Orth), DNB(Orth), FCPS INDIA
Pseudoparalysis And Subscapularis Insufficiency Are Not Contraindications For Superior Capsular Reconstruction Travis Frantz, MD UNITED STATES
Effectiveness Of Latarjet For Anterior Shoulder Instability In Patients With Seizure Disorder Jonathan T. Bravman, MD UNITED STATES
Utilization Of Patient-Reported Outcomes Measurement Information System (Promis) For Operative Shoulder Outcomes. Ilona Schwarz, MS UNITED STATES
Health Literacy in Shoulder Arthroscopy: A Quantitative Assessment of the Understandability and Readability of Online Patient Education Material Alan Shamrock, MD UNITED STATES
Training With Lighter Baseballs Increases Velocity Without Increasing Injury Risk Brandon Erickson, MD UNITED STATES
A Study For Monitoring Scapular Movements By Using Polymer-Encapsulated Strain Sensors Based On Conductive Textile Umile Giuseppe Longo, MD, MSc, PhD, Prof. ITALY
Performance-Based Outcomes After Shoulder Arthroscopy in Professional Athletes Among Different Sports Mary K. Mulcahey, MD UNITED STATES
Is it inevitable to have dynamic horizontal acromioclavicular joint instability with single Tightrope? A clinical retrospective study. Mohamed Safaa Eldeen Arafa, MD EGYPT
A Novel Button-Suture-Technique For Arthroscopic Treatment Of Anterior Glenoid Fractures – Excellent Clinical Outcome After A Minimum Of 6 Months Thomas R. Pfeiffer, Prof. GERMANY
Acromioclavicular Joint Disc Injury. Clinical Outcomes From Arthroscopic Resection of the Distal Clavicle and Joint. Neil Jain, BM, MRCS(Ed), FRCS(Tr&Orth) UNITED KINGDOM
Biomechanical Comparison Of Knotted And Knotless Reconstruction Of Full-Thickness Tears Of The Upper Subscapularis Tendon Mirco Sgroi, MD GERMANY
Pre- and Intra-operative Factors Affecting the Development of Post-operative Shoulder Stiffness. Davide Cucchi, MD GERMANY
Does The Position During Postoperative Physiotherapy Affect Outcome Of Arthroscopic Treatment Of Acromioclavicular Dislocation; A Prospective Comparative Study Tarek M. T. Ghandour, MD EGYPT
Limited Utility Of Plain Radiographs For Non-Traumatic Shoulder Pain In Patients Under 50 And Implications For Telemedicine In Orthopaedics Alexandria Lichtl, BA UNITED STATES
Real World Survey Burden Of Common Patient-Reported Outcome Measures Utilized In Shoulder Surgery Jonathan T. Bravman, MD UNITED STATES
The epidemiology of acute acromioclavicular dislocations in an urban population. A prospective cohort study investigating the capital region of Denmark Kristine Bramsen Haugaard, MD DENMARK
Reliable Clinical and Sonographic Outcomes of Subpectoral Biceps Tenodesis using an All-Suture Anchor Onlay Technique Hannes Degenhardt, MD GERMANY
Arthroscopic Bankart Repair Versus Open Latarjet Procedure For Recurrent Shoulder Dislocation: Which Is Better in Limited Resource Setting? Saroj Rai, MD, PhD UNITED ARAB EMIRATES
UPPER LIMB LENGTHENING IN ACHONDROPLASIA USING UNILATERAL EXTERNAL FIXATION Antonio Arenas-Miquelez, MD, FEBOT AUSTRALIA
Why Athletes Don’T Return To Sports After Arthroscopic Bankart Repair? A Comparative Study Of 230 Athletes With A Mínimum 2 Years Follow-Up Luciano Rossi, PhD ARGENTINA
Revisiting Percutaneous Fixation for Proximal Humerus Fractures Megan Diack, MBCHB, MRCSI, MCh IRELAND
Higher Recurrence And Revision Rates With Arthroscopic Bankart Repair Compared To The Latarjet Procedure In Competitive Rugby Players With Glenohumeral Instability And A Glenoid Bone Loss < 20% Luciano Rossi, PhD ARGENTINA
Suprascapular Nerve Block Provides Adequate Analgesia Following Shoulder Arthroscopy Michael Warren, MD UNITED STATES
Treatment of Primary Shoulder Stiffness: Results of Survey on Surgeon Practice Patterns Davide Cucchi, MD GERMANY
Outcome Of Arthroscopic Suspensory Fixation Systems In Acromioclavicular Joint Injuries Mohamed Ibrahim, MD EGYPT
Effect of Electronic Medical Record Usage on Orthopaedic Surgeon Physician Burnout Christopher John Como, BSE UNITED STATES
Diagnosis And Treatment Of Snapping Scapula Syndrome: A Scoping Review Hassan Baldawi, MB, BCh, BAO, MSc (Candidate) CANADA
Graft Augmented Osteosynthesis Of Proximal Humerus Fracture In Osteoporotic Fractures Ravi G R, MBBS,MS orthopaedics INDIA
Open Versus Modi?ed Arthroscopic Treatment Of Acute Acromioclavicular Dislocation Using A Single Tight Rope: Randomized Comparative Study Of Clinical Outcome And Cost-Effectiveness Tarek M. T. Ghandour, MD EGYPT

Shoulder - Rotator Cuff (31 e-Posters)
Clinical Outcomes Of Rotator Cuff Anterior Cable Reconstruction With Long Head Of Biceps Tendon Autograft Ilya Voloshin, MD UNITED STATES
Mid-term outcome of superior capsular reconstruction using doubled acellular human dermal allograft for irreparable rotator cuff tear: An analysis of how graft thickness affects clinical outcome Priyadarshi Amit, MS, DNB, MRCSEd, MCh, FRCS UNITED KINGDOM
Combined Biological Augmentation Techniques in Revision Rotator Cuff Repair Maristella Francesca Saccomanno, MD, PhD ITALY
Arthroscopic Rotator Cuff Repair: Outcomes After Knotted Verses Knotless Double Row Transosseous Equivalent Repair Techniques Michael Andrew Fox, MD UNITED STATES
Comparison Of Clinical And Structural Outcomes By Subscapularis Tendon Status In Massive Rotator Cuff Tear Jeong-Woo Kim, MD KOREA, REPUBLIC OF
Do Psychosocial Factors Affect Outcomes After Arthroscopic Rotator Cuff Repair? Maxime Antoni, MD FRANCE
Smokers Benefit From Rotator Cuff Repair Kirsten Lundgreen, MD, PhD NORWAY
Relationship Between Critical Shoulder Angle And Retear Rate After Arthroscopic Rotator Cuff Repair Christopher John Como, BSE UNITED STATES
Does Acromioclavicular Joint Tenderness Affect The Outcome Of Rotator Cuff Repair? A Prospective Cohort Study Priyadarshi Amit, MS, DNB, MRCSEd, MCh, FRCS UNITED KINGDOM
Evaluation Of Knotted Vs Knotless Medial Row Transosseous Equivalent Rotator Cuff Repair: A Retrospective Review Daniel Nemirov, BA UNITED STATES
Magnetic Resonance Imaging Classification For The Assessment Of Tendon Integrity Of The Rotator Cuff After Repair. A Reliability Study Alessandra Scaini, MD ITALY
Influence Of Age On Outcomes After Arthroscopic Rotator Cuff Repair Of Distal Supraspinatus Tear Maxime Antoni, MD FRANCE
“Arthroscopic Repair Of U Shaped Rotator Cuff Tear: Modified Margin Convergence With A Single Triple Loaded Suture Anchor” Siddharth Jain, M.S. ORTHOPEDICS INDIA
Traumatic Rotator Cuff Tears Have Greater Improvements In Functional Outcomes Than Non-Traumatic Tears Brian M Godshaw, MD UNITED STATES
The Top 100 Most Impactful Articles On The Rotator Cuff: An Altmetric Analysis Of Online Media Heath Patrick Gould, MD UNITED STATES
Effectiveness Of In-Office Ultrasound For The Management Of Suspected Rotator Cuff And Biceps Pathology: An Institutional Evaluation of Surgeons With No Formal Training Jarret M. Woodmass, MD, FRCSC CANADA
Bursal Acromial Reconstruction (Bar) Using An Acellular Dermal Allograft For Massive, Irreparable Posterosuperior Rotator Cuff Tears: A Dynamic Biomechanical Investigation Daniel P. Berthold, Association.-Prof. GERMANY
Outcomes Following Open Latarjet Procedure With Associated Rotator Cuff Repair Peter Domos, MD, FRCS(Tr&Orth) UNITED KINGDOM
Comparing Outcomes of Rotator Cuff Repair Following Acute Tendon Ruptures and Concurrent Shoulder Dislocations vs Acute Tendon Ruptures without Shoulder Dislocation Adam Eibel, BS, BA UNITED STATES
Health Literacy in Rotator Cuff Repair: A Quantitative Assessment of the Understandability And Readability of Online Patient Education Material Alan Shamrock, MD UNITED STATES
Biomechanical Comparison Of New Transosseous Rotator Cuff Repair Technique Versus Conventional Transosseous And Transosseous Equivalent Technique Suwittaya Thienpratharn, MD THAILAND
The Result Of Long Term Follow Up Of Arthroscopic Partial Repair For Massive Irreparable Rotator Cuff Tear Using Biceps Long Head Auto Graft Sang-Hun Ko, MD, Prof. KOREA, REPUBLIC OF
Value-Based Care In Shoulder Arthroscopy: a Lean-Based Banyan Board Project Management Tool For Arthroscopic Rotator Cuff Repair Or Biceps Tenodesis Michael A Mastroianni, MS UNITED STATES
Clinical Outcomes Of Rotator Cuff Repair As A Function Of Time To Surgery: A Retrospective Cohort Study Robin H Dunn, MD UNITED STATES
Lower Trapezius Transfer With Semitendinosus And Gracilis Autologous Tendon Graft With Knotless Suture Anchors, Using Arthroscopic Assistance To Treat An Irreparable Posterosuperior Tear Of Rotator Cuff Without Glenohumeral Arthrosis: One - Year Outcomes Robin Israel Villegas, MD ECUADOR
Magnetic resonance imaging criteria for the preoperative assessment of the rotator cuff tears: a systematic review Marco Adriani, MD ITALY
Scapular Kinematics And Pattern Of Scapular Dyskinesis In Rotator Cuff Tears. A Prospective Cohort Study Umile Giuseppe Longo, MD, MSc, PhD, Prof. ITALY
Outcome Comparison between Healed and Unhealed Cases after Arthroscopic Rotator Cuff Repair with Muscle Advancement for Massive Rotator Cuff Tears Shin Yokoya, MD, PhD JAPAN
Risk Factors for Retears Following repairs of Massive Rotator Cuff Tears With Or Without Involvement Of Subscapularis Silvampatti Ramasamy Sundararajan, MS(Orth) INDIA
Does the Walch Type B Shoulder have a Transverse Force Couple Imbalance? - A Volumetric Analysis of Segmented Rotator Cuff Muscles in Osteoarthritic Shoulders. Antonio Arenas-Miquelez, MD, FEBOT AUSTRALIA
Subacromial Balloon Spacer for Massive, Irreparable Rotator Cuff Tears is Associated with Improved Shoulder Function and High Patient Satisfaction Filippo Familiari, MD, Prof. ITALY

Sports Medicine (64 e-Posters)
Deep Venous Thrombosis After Proximal Hamstring Tendon Repair: A Systematic Review Mary K. Mulcahey, MD UNITED STATES
Inter-Rater Reliability Of The Classification Of The J-Sign Is Inadequate Amongst Experts Laurie A. Hiemstra, MD, PhD, FRCSC CANADA
Return To Competition Following Clavicle Fracture In Professional Road Cyclists Matthew Paul Walmsley, MBChB, MRCS UNITED KINGDOM
Targeting Rule Implementation Decreases Neck Injuries In High School Football: A National Injury Surveillance Study Kyle Kosei Obana, BA UNITED STATES
Effects Of A Novel Hyaluronic Acid-Based Antibiotic Delivery System on Osteogenic Cell Cultures Dimitrios Argyrakis, MD, IOC Dip Sp Phy SWEDEN
Results Of 234 Meniscal Tear Repair Cases With A Minimum Follow-Up Of 2 Years. Horacio F. Rivarola-Etcheto, MD ARGENTINA
Influence Of Medial Arch Support On Knee Joint Kinematics During Cutting Motion Seikai Toyooka, MD, PhD, JAPAN
Peri-Operative Opioid Delivery After Paediatric Knee Arthroscopic Surgery Lee Benaroch, MD, BSc (Hons) CANADA
Characterizing Health Events That Prevent Return To Play In Elite Collegiate Swimmers Rishi Trikha, MD UNITED STATES
Pre-Operative Indicators of ACL Reconstruction Outcomes Martin Weaver, BS UNITED STATES
Unplanned Emergency Visits and Admissions Following Orthopedic Ambulatory Surgery in the First Two Years of Operation of a University Ambulatory Surgery Center Timothy Lee Miller, MD UNITED STATES
Use Of The Fifa 11+S As Part Of Post-Operative Rehabilitation From Arthroscopic Shoulder Stabilisation Results In A Lower Oxford Shoulder Instability Score Neil Jain, BM, MRCS(Ed), FRCS(Tr&Orth) UNITED KINGDOM
The Predictors of Hamstring Autograft Failure in Anterior Cruciate Ligament Reconstruction in an Asian Population: Does Size Still Matter? Janice H. E. Tan, MBBS SINGAPORE
In Vivo load measurement in wakeboarding: Implication for load control and prevention. Thomas Tischer, Prof. Dr. GERMANY
Comparison Of Muscle Strength And Neuromuscular Control Up To 1 Year After Anterior Cruciate Ligament Reconstruction Between Patients With Dominant Leg And Non-Dominant Leg Injuries Ki-Mo Jang, MD, PhD, Prof. KOREA, REPUBLIC OF
The Anterolateral Ligament Has Limited Intrinsic Healing Potential: A Serial 3D-MRI Study Of Anterior Cruciate Ligament Injured Knees Adnan Saithna, MD, FRCS UNITED STATES
Injury Profile in American Mixed Martial Arts (MMA) Mary K. Mulcahey, MD UNITED STATES
Methods for Articular Cartilage Evaluation Using Tissue Engineering and Cell Therapy: ISAKOS Osteoarthritis Grant Translational Study Tiago Lazzaretti Fernandes, MD, PhD, MSc, Post-Doctorate BRAZIL
Assessment of inter-rater reliability of a new device to measure anterior knee laxity. A cadaver study Alessandra Scaini, MD ITALY
Cognitive Deficits Following Concussion: A Systematic Review Mary K. Mulcahey, MD UNITED STATES
Lower Extremity Injury Surveillance of Collegiate Student-Athletes: Epidemiological Insights from the Pac-12 Health Analytics Program Lexie K. Ross, BA UNITED STATES
Opioid Reduction After Knee And Shoulder Arthroscopy: A Systematic Review And Meta-Analysis Of Randomized Controlled Trials Kyle Gouveia, MD CANADA
ACL Reconstruction By Graft Link All-Inside Technique In Skeletal Immature Patients. Horacio F. Rivarola-Etcheto, MD ARGENTINA
Acute And Delayed Anterior Cruciate Ligament Repair Results In Similar Short To Mid-Term Outcomes Harmen D. Vermeijden, MD UNITED STATES
Hypermobile Lateral Meniscus And Articular Lock Due To Meniscal Disinsertion Horacio F. Rivarola-Etcheto, MD ARGENTINA
Patient-Reported Outcomes In Athletes Following Hip Arthroscopy For Femoroacetabular Impingement With Sub-Analysis On Return To Sport And Performance Level: A Systematic Review Benjamin G. Domb, MD UNITED STATES
Defining Return To Sport: A Systematic Review Mary K. Mulcahey, MD UNITED STATES
Salvage revision hip arthroscopy including remplissage improves patient reported outcomes after cam over-resection Justin W. Arner, MD UNITED STATES
Comparison of Bone-Patella Tendon-Bone and Quadriceps Tendon Autograft for ACL Reconstruction at Twelve-Month Follow-Up Seth L. Sherman, MD UNITED STATES
The Sport-Specific Prevalence of Generalized Joint Hypermobility in Collegiate Athletes – A Cross-Sectional Study Vehniah K. Tjong, MD, FRCSC UNITED STATES
Proximal hamstring rupture: A survey of over 700 patient experiences. Rosemary Jane Hackney, BMedSci, BMBS, MRCS(Ed) UNITED KINGDOM
Sport Specialization Classification And Injury Risk In Female Athletes Mary K. Mulcahey, MD UNITED STATES
Injuries Related to Wakeboarding in Brazil: A Cross-Sectional Study Larissa Decezaro, BS BRAZIL
Tibial Bone Cyst Formation After Anterior Cruciate Ligament Reconstruction Using Absorbable Interference Screw - Case Report Rodrigo Zuccon, MD BRAZIL
Modified Lemaire Antero-Lateral Extra Articular Tenodesis Alters the MRI Maturity Signal of ACL Hamstring Graft Maximiliano Ibañez, MD SPAIN
How Reliable Is Dr. Google? A Systematic Review Evaluating Information Available On The Internet For Common Orthopedic Sports Medicine Terms Ilona Schwarz, MS UNITED STATES
Injury Prevention Programs For Throwing Injuries In Softball Players Mary K. Mulcahey, MD UNITED STATES
The Rate Of Tibial Tunnel Malposition Is Not Reduced By Drilling Entirely Within The Stump Of Preserved Remnants During Acl Reconstruction: A Prospective Comparative 3D-Ct Study Vitor Barion Castro De Padua, PhD BRAZIL
Outcomes after proximal hamstring surgery: an analysis of acute vs chronic repair after conjoint tendon injury Steven Cecchi, BSc (Hons), MBBS AUSTRALIA
High Rate Of Return To Sport Following Abdominal Muscle Injuries In NCAA Division I Overhead Athletes Seth C. Gamradt, MD UNITED STATES
Is Arthrometric Testing A Reliable Option For Preoperative Diagnosis Of Ramp Lesions? Giuseppe Gianluca Costa, MD ITALY
Adolescent Pitcher Fatigue: Ulnar Collateral Ligament Stress, Ultrasonographic Assessment of Flexor-Pronator Mass Energy Depletion, and Correlation to Pitch Count Michael T. Freehill, MD UNITED STATES
Return To Sport And Minimum 2-Year Outcomes Of Primary Arthroscopic Hip Labral Reconstruction In High Level Athletes With A Propensity Matched Benchmarking Against A Labral Repair Control Group Benjamin G. Domb, MD UNITED STATES
Relationship Between Static Standing Scapula Height And Shoulder And Elbow Injury In Elite High School Baseball Pitchers Yasuaki Okawa, MS JAPAN
An Activity Scale for All Youth Athletes? An Analysis of the HSS Pedi-FABS in 2459 Pediatric Sports Medicine Patients Henry B. Ellis, MD UNITED STATES
Reliability And Agreement Between Mri And X-Ray For Measuring Caton-Deschamps Ratio Ryan W. Paul, BS UNITED STATES
Targeting Rule Implementation Decreases Concussions In High School Football: A National Concussion Surveillance Study Kyle Kosei Obana, BA UNITED STATES
Biologically Augmented Suture for Ligament Bracing Positively Effects Human Ligamentocytes and Osteoblasts in vitro Alexander Otto, MD GERMANY
Percutaneous Posterior Labral Repair: Clinical Results From A Single Institution Review Luis A Vargas, MD, PhD UNITED STATES
Epidemiology Of Injuries In The Women’S National Basketball Association (Wnba) During The 2017 Season Mary K. Mulcahey, MD UNITED STATES
Do The Acl Reconstruction Outcomes With Hamstring Autografts Depend On The Percentage Of Native ACL Tibial Footprint Area Restored ? Rohan Bhargava, MS(Ortho) , DNB(Ortho) , FNB, MRCS ( Ed.) INDIA
Does a Supervised Patient Ambulation Program Reduce the Risk of Falls after Total Joint Arthroplasty? William Bugbee, MD UNITED STATES
Increased Lower Extremity Injury Risk Associated with Player Load and Distance in Collegiate Women’s Soccer Michelle Xiao, BS UNITED STATES
Burnout Self-Report Amongst Latinamerican Orthopedic Surgeons Martin Contreras, MD CHILE
Injury Patterns In Collegiate Gymnasts: An Analysis Of The Pac-12 Sports Injury Research Archive Danielle Greig, MD UNITED STATES
Subacromial Joint Injections Are More Likely To Be Successful When Using A Lateral Rather Than Posterior Approach: An Anatomical MRI Scan Study Natalie Cheyne, MRCS (Ed) UNITED KINGDOM
Increased Risk Of Hip And Lower Back Injury In Breaststroke Swimmers: Epidemiologic Analysis Of The Lower Back Injuries In NCAA Division I Swimmers Seth C. Gamradt, MD UNITED STATES
Epidemiological Analysis Of Acute And Overuse Injuries In Underwater Rugby. Christoph Lutter, MD GERMANY
Immersive Virtual Reality (iVR) Improves Procedural Duration, Task Completion, And Accuracy In Surgical Trainees: A Systematic Review Randi Mao, BHSc CANADA
Changing Practice And Improving Outcomes: Two-Year Revision Rates Following Primary ACLR After Implementation Of An Allograft Utilization Reduction Intervention In An Integrated Healthcare System Gregory B. Maletis, MD UNITED STATES
The Epidemiology Of Head Injuries At The 2019 Rugby Union World Cup Compared To Previous World Cup Tournaments Matthew Strang, MBChB, BSc (Hons), MRCS UNITED KINGDOM
The Prevalence of Hip Labral Tears and Femoroacetabular Impingement in Karate Athletes, from Experienced to Elite: A Statewide Survey Study Benjamin G. Domb, MD UNITED STATES
Resident Involvement and Patient Outcomes in Orthopaedic Surgery: A Meta-Analysis and Systematic Review Avi S. Robinson, MD UNITED STATES
Muscle Tissue Loss After Hamstring Graft Harvest In Acl Reconstruction. A Comparative Study Horacio F. Rivarola-Etcheto, MD ARGENTINA

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