Summary: In a dynamic biomechanical cadaveric model, increased glenohumeral joint loads due to a full-thickness supraspinatus tear can be reversed with rotator cuff repair, while preventing superior humeral head migration and decreasing compensatory deltoid forces.

Background

Rotator cuff tears (RCT) have been shown to result in altered shoulder kinematics with disruption of the biomechanical synergy of the rotator cuff and deltoid muscles, which may be responsible for the correlation between RTCs and degenerative changes of the glenohumeral joint. The purpose was to evaluate the effect of an isolated full-thickness supraspinatus (SSP) tear on glenohumeral kinematics, contact mechanics, and quantify improvement following rotator cuff repair (RCR). The authors hypothesized that RCR would reverse the increased glenohumeral joint loads caused by a full-thickness SSP tear.

Methods

Ten fresh-frozen cadaveric shoulders (mean age: 63.1 ± 4.6 years) were tested using a dynamic shoulder simulator. A pressure mapping sensor was placed between the humeral head and glenoid. Each specimen underwent the following three conditions: (1) native, (2) isolated full-thickness SSP tear, (3) RCR. Maximum abduction angle (MAA) and superior humeral head migration (SHM) were measured using 3D motion tracking software. Cumulative deltoid force (CDF) and glenohumeral contact mechanics, including contact area (GCA) and contact pressure (GCP), were assessed at the resting position as well as at 15°, 30°, 45°, and 60° of glenohumeral abduction.
An a priori power analysis was performed to determine detectable differences in contact pressure given estimated standard deviations. Assuming a common standard deviation of 15kPa, a sample size of 6 specimens would provide 80% power to detect a 25kPa difference in pressure at an a level of .05. Repeated measures analysis of variance was performed to examine differences in MAA, SHM, glenohumeral contact mechanics, and CDF among the various testing conditions. When significant, post-hoc paired t tests with a Bonferroni corrected alpha were performed to determine which pairwise comparisons were statistically significant. The alpha level for all analyses was set at .05.

Results

Compared to native, the SSP tear resulted in a significant decrease in MAA (Delta: -8.3°; P <. 001) along with a SHM of 6.4 ± 3.8mm, while significantly increasing CDF (Delta: 20.5N; P = .008), GCP (Delta: 63.1kPa; P < .001), and peak GCP (Delta: 278.6kPa; P < .001) as well as decreasing GCA (Delta: -45.8mm2; P < .001) at each degree of glenohumeral abduction. RCR reduced SHM to 1.2 ± 2.5mm, while restoring native MAA, CDF (Delta: 1.8N), GCA (Delta: 4.5mm2), GCP (Delta: -4.5kPa) and peak GCP (Delta: 19.9kPa) at each degree of abduction (P > .999, respectively).

Conclusion

In a dynamic biomechanical cadaveric model, increased glenohumeral joint loads due to a full-thickness SSP tear can be reversed with RCR. More specifically, RCR restored native glenohumeral contact area and contact pressure, while preventing superior humeral head migration and decreasing compensatory deltoid forces. These time-zero observations indicate that isolated full-thickness SSP tears should undergo repair, in order to reverse altered loading conditions and improve overall shoulder function. More importantly, this potentially prevents progressive cartilage degeneration, while preserving the native glenohumeral joint.

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Comparison Of Clinical And Structural Outcomes By Subscapularis Tendon Status In Massive Rotator Cuff Tear ePoster Presentation Jeong-Woo Kim, MD, KOREA, REPUBLIC OF
Osteochondritis Dissecans Of The Glenoid : An Analysis Of Grades, Treatment And Outcomes. ePoster Presentation Dinshaw Pardiwala, MS(Orth), DNB(Orth), FCPS, INDIA Kushalappa Subbiah, MS(Orth), INDIA Nandan N Rao, M.B.B.S, M.S Orthopaedics, INDIA
Outcomes Of Arthroscopic Latarjet Procedure For Anterior Glenohumeral Instability In Patients With Epilepsy. A Case-Control Study Abstract Presentation 4 minutes Lika Dzidzishvili, MD, PhD, SPAIN Claudio Calvo Palma, MD, PhD, CHILE María Valencia Mora, MD, PhD, SPAIN Diana Morcillo Barrenechea, MD, SPAIN Antonio Foruria, MD, PhD, SPAIN Emilio Calvo, MD, PhD, MBA, SPAIN
Does Oral Stain Use Affect Rotator Cuff Healing or Muscle Fatty Atrophy after Rotator Cuff Repair? Abstract Presentation 4 minutes Priyadarshi Amit, MS, DNB, MRCSEd, MCh, FRCS, UNITED KINGDOM Jan Herman Kuiper, M.Sc. Ph.D., UNITED KINGDOM Martyn Snow, FRCS, UNITED KINGDOM
Effectiveness Of Latarjet For Anterior Shoulder Instability In Patients With Seizure Disorder ePoster Presentation Stephen G Thon, MD, UNITED STATES Katherine Branche, MD, UNITED STATES Darby Adele Houck, BA, UNITED STATES Eric C. McCarty, MD, UNITED STATES Adam Seidl, MD, UNITED STATES Armando F. Vidal, MD, UNITED STATES Michelle Wolcott, MD, UNITED STATES Rachel M. Frank, MD, UNITED STATES Jonathan T. Bravman, MD, UNITED STATES
Glenoid Lateralization Influences Active Internal Rotation After Reverse Shoulder Arthroplasty Abstract Presentation 5 minutes Brian C Werner, MD, UNITED STATES Evan Lederman, MD, UNITED STATES Reuben Gobezie, MD, UNITED STATES Patrick J. Denard, 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 ePoster Presentation Priyadarshi Amit, MS, DNB, MRCSEd, MCh, FRCS, UNITED KINGDOM Abilash Hosahally Thimmegowda, MS(Orth), MRCS, MFSEM, FRCS,, UNITED KINGDOM Martyn Snow, FRCS, UNITED KINGDOM
All-Arthroscopic muscle advancement repair technique for massive postero-superior rotator cuff tears Abstract Presentation 6 minutes Andrew Ker, MBChB, BSc (Hons), FRCSed (T+O), UNITED KINGDOM Jashint Maharaj, MBBS, FRSPH, AUSTRALIA Bart-Jan Jd Veen, MD, NETHERLANDS Kenneth Cutbush, MBBS, FRACS, FAOrthA, AUSTRALIA Ashish Gupta, MBBS, MSc, FRACS, FAORTHOA, AUSTRALIA
Glenosphere Lateralization In Reverse Shoulder Arthroplasty Leads To Better Functional And Clinical Outcomes In Rotator Cuff Arthropaty Patients - A Systematic Review With Meta-Analysis. Abstract Presentation 3 minutes Joni L. Soares Nunes, MD, PORTUGAL Renato Andrade, PhD student, PORTUGAL Guilherme França, MD, PORTUGAL João Espregueira-Mendes, MD, PhD, Full Prof., PORTUGAL Nuno Sevivas, MD, PhD, PORTUGAL
Recurrence of Arthroscopic Bankart Remplissage Reconstruction of Antero-inferior Shoulder Instability: Comparison between Collision vs. Non-Collision Athletes ePoster Presentation Pablo A. Narbona, MD, ARGENTINA Gabriel Arce, MD, ARGENTINA Manuel Olmos, MD, ARGENTINA Rafael Norberto Martinez Gallino, MD, ARGENTINA
The Early And Encouraging Results Of Suture Tape For Glenoid Labral Repair In Shoulder Stabilisation ePoster Presentation John Ranson, MBChB, BSc (Hons), MRCSEd, UNITED KINGDOM Lee Hoggett, MBChB, MRCS, UNITED KINGDOM Neil Jain, BM, MRCS(Ed), FRCS(Tr&Orth), UNITED KINGDOM
A New Mini-Open Technique Of Arthroscopically Assisted Latarjet ePoster Presentation Ettore Taverna, MD, ITALY Vincenzo Guarrella, MD, ITALY Carlo Perfetti, MD, ITALY
Comparing Outcomes of Rotator Cuff Repair Following Acute Tendon Ruptures and Concurrent Shoulder Dislocations vs Acute Tendon Ruptures without Shoulder Dislocation ePoster Presentation Adam Eibel, BS, BA, UNITED STATES Jonathan D Hughes, MD, PhD, UNITED STATES Clair Smith, MSc, UNITED STATES Adam J. Popchak, DPT, PhD, UNITED STATES Bryson P. Lesniak, MD, UNITED STATES Albert Lin, MD, UNITED STATES
Treatment of Primary Shoulder Stiffness: Results of Survey on Surgeon Practice Patterns ePoster Presentation Davide Cucchi, MD, GERMANY Silvana de Giorgi, MD, ITALY Maristella Francesca Saccomanno, MD, PhD, ITALY Francesco Mattia Uboldi, MD, ITALY Alessandra Menon, MD, ITALY Max Julian Friedrich, MD, GERMANY Pietro S. Randelli, MD, Prof., ITALY Antonio Marmotti, ITALY Laura de Girolamo, PhD, ITALY
Health Literacy in Rotator Cuff Repair: A Quantitative Assessment of the Understandability And Readability of Online Patient Education Material ePoster Presentation Olivia O'Reilly, MD, UNITED STATES Mary Kate Skalitzky, BA, UNITED STATES Alan Shamrock, MD, UNITED STATES Burke Gao, MD, UNITED STATES Kyle Kesler, MD, UNITED STATES Trevor Gulbrandsen, MD, UNITED STATES Brendan Patterson, MD, UNITED STATES
Does The Posterior Glenoid Osteotomy Reduce The Rate Of Recurrence Inpatients With Posterior Shoulder Instability – A Systematic Review. ePoster Presentation Shahbaz S Malik, BSc, MB BCh, MSc (Orth Engin), LLM, FRCS (Tr&Orth), UNITED KINGDOM Muaaz Tahir, BSc, MBBS, FRCS, UNITED KINGDOM Robert Jordan, MB BS, MSc, FRCS (Tr&Orth), UNITED KINGDOM Peter B. MacDonald, MD, FRCS, Dip Sport Med, CANADA
Type Iv and V Acromioclavicular Dislocation: Long Terms Results Of Conservative Treatment In Rugby Players. Abstract Presentation 5 minutes Franco Della Vedova, ARGENTINA Matias Orlando, Md, ARGENTINA Hernan Galan, MD, ARGENTINA Daniel A. Slullitel, MD, Prof., ARGENTINA
Adipose MSC in Arthroscopic Rotator Cuff Repair. A Prospective Randomized Controlled Trial With Two Years Follow-Up. Abstract Presentation 5 minutes Pietro S. Randelli, MD, Prof., ITALY Davide Cucchi, MD, GERMANY Elisabetta Nocerino, MD, ITALY Linda Boerci, MD, ITALY Chiara Fossati, MD, ITALY Alessandra Menon, MD, ITALY
Do Pre-Operative Opioid Use And Chronic Post-Operative Dependence Affect Outcomes After Reverse Shoulder Arthroplasty? ePoster Presentation Prashant Meshram, MBBS, MS, DNB (Ortho), UNITED ARAB EMIRATES Alexander Rainer Manuel Bitzer, MD, UNITED STATES Tim Kreulen, MD, UNITED STATES Stephen C. Weber, MD, UNITED STATES Uma Srikumaran, MD, MBA, MPH, UNITED STATES Edward G McFarland, MD, FAAOS, UNITED STATES
High Variability In Functional Outcomes And Recurrences Between Contact/Collision Sports After Arthroscopic Bankart Repair. A Comparative Study Of 351 Patients With A Minimum 3-Year Follow-Up Abstract Presentation 4 minutes Luciano Rossi, PhD, ARGENTINA Ignacio Tanoira, MD PhD, ARGENTINA Tomás David Gorodischer, MD, ARGENTINA Ignacio Pasqualini, MD, ARGENTINA Maximiliano Ranalletta, MD, ARGENTINA
Latarjet Vs Coracoid Free Graft For The Treatment Of Glenohumeral Anterior Instability In Patients Older Than 40 Years ePoster Presentation Peter Domos, MD, FRCS(Tr&Orth), UNITED KINGDOM Mikaël Chelli, MD, FRANCE Gilles Walch, MD, FRANCE
Location of the Suture Anchor in Hill-Sachs Lesion Could Influence Glenohumeral Cartilage Quality and Limit Range of Motion After Arthroscopic Bankart Repair and Remplissage Abstract Presentation 5 minutes Zheci Ding, MD, CHINA Jiwu Chen, MD, PhD, CHINA
Reverse Shoulder Replacement: Incidence Rates, Complications, And Outcomes In 2638 Patients As Reported By Abos Part Ii Candidates From 2005 Through 2017 ePoster Presentation Stephen C. Weber, MD, UNITED STATES Uma Srikumaran, MD, MBA, MPH, UNITED STATES Jorge Rojas Llevano, MD, COLOMBIA Prashant Meshram, MBBS, MS, DNB (Ortho), UNITED ARAB EMIRATES Edward G McFarland, MD, FAAOS, UNITED STATES
Revisiting Percutaneous Fixation for Proximal Humerus Fractures ePoster Presentation Megan Diack, MBCHB, MRCSI, MCh, IRELAND Muhammad Nouman Baig, MBBS, ChM T&O, FEBOT, IRELAND Orla Hennessy, MB BaO BCh, MCh, IRELAND Ben Murphy, MB BCh BAO, MCh, MRCS, IRELAND Kenneth Kaar, FRCS (Tr and Ortho), IRELAND
Inlay Total Shoulder Arthroplasty For Primary Glenohumeral Arthritis Abstract Presentation 5 minutes John W. Uribe, MD, UNITED STATES John E. Zvijac, MD, UNITED STATES Luis A Vargas, MD, PhD, UNITED STATES David A. Porter, MD, UNITED STATES Anshul Saxena, BDS, PhD, UNITED STATES Matthias Schurhoff, MD, UNITED STATES Andrew Payomo, MD student, UNITED STATES
Establishing Minimal Clinically Important Difference In The Shoulder Activity Level Rating Scale After Shoulder Surgery ePoster Presentation Darby Adele Houck, BA, UNITED STATES Ian L Verbeck, MS, UNITED STATES Eric C. McCarty, MD, UNITED STATES Rachel M. Frank, MD, UNITED STATES Michelle Wolcott, MD, UNITED STATES Adam Seidl, MD, UNITED STATES Jonathan T. Bravman, MD, UNITED STATES
Latarjet After Failed Bankart Repair ePoster Presentation Benjamin Marjanovic, MD, SLOVENIA Marko Nabergoj, MD, SLOVENIA
Midterm Results Of Two-Stage Revision Surgery For Periprosthetic Shoulder Infection ePoster Presentation Stephen C. Weber, MD, UNITED STATES Prashant Meshram, MBBS, MS, DNB (Ortho), UNITED ARAB EMIRATES Edward G McFarland, MD, FAAOS, UNITED STATES Jorge Rojas Llevano, MD, COLOMBIA Jacob Joseph, BS, UNITED STATES Uma Srikumaran, MD, MBA, MPH, UNITED STATES
Diagnostic Value Of Measurements Methods For Bony Bankart Lesions ePoster Presentation Mirco Sgroi, MD, GERMANY Hashuka Huzurudin, MD, GERMANY Marius Ludwig, MD, GERMANY Heiko Reichel, Prof., GERMANY Thomas Kappe, MD, Prof., GERMANY
Bristow Versus Latarjet In High-Demand Athletes With Anterior Shoulder Instability: A Prospective Randomized Comparison Abstract Presentation 5 minutes Paulo S. Belangero, MD, PhD, BRAZIL Paulo Henrique Schmidt Lara, MD, BRAZIL Leandro MASINI Ribeiro, BRAZIL Eduardo A. Figueiredo, MD, BRAZIL Carlos V. Andreoli, PhD, BRAZIL Alberto C. Pochini, MD, PhD, BRAZIL Benno Ejnisman, MD, BRAZIL Ricardo Luiz Smith, Prof., BRAZIL
Is it inevitable to have dynamic horizontal acromioclavicular joint instability with single Tightrope? A clinical retrospective study. ePoster Presentation Mohamed Safaa Eldeen Arafa, MD, EGYPT Mohamed Ibrahim, MD, EGYPT Alexandre Lädermann, MD, SWITZERLAND
Effect of Electronic Medical Record Usage on Orthopaedic Surgeon Physician Burnout ePoster Presentation Christopher John Como, BSE, UNITED STATES Jonathan D Hughes, MD, PhD, UNITED STATES Albert Lin, MD, UNITED STATES
Outcomes After Arthroscopic Rotator Cuff Repair In Patients 65 And Older: A Matched Analysis Abstract Presentation 5 minutes Scott Andrew Wu, BA, UNITED STATES Mark Andrew Plantz, BS, UNITED STATES Erik Gerlach, MD, UNITED STATES Nicholas Arpey, MD, UNITED STATES Peter Swiatek, MD, UNITED STATES Colin Cantrell, MD, UNITED STATES John Carney, MD, UNITED STATES Haley Smith, MD, UNITED STATES Eric Sanders, MD, UNITED STATES Vehniah K. Tjong, MD, FRCSC, UNITED STATES
Classic Vs Congruent-Arc Latarjet Procedure In Athletes With Recurrent Glenohumeral Instability And A Significant Glenoid Bone Loss Abstract Presentation 4 minutes Luciano Rossi, PhD, ARGENTINA Ignacio Tanoira, MD PhD, ARGENTINA Tomás David Gorodischer, MD, ARGENTINA Maximiliano Ranalletta, MD, ARGENTINA
What Is The Ideal Position Of The Shoulder For Graft Fixation In Arthroscopic Superior Capsular Reconstruction? A Computational Analysis. Abstract Presentation 5 minutes Madalena João Antunes, MEng, PORTUGAL Carlos Quental, PhD, Prof., PORTUGAL João Folgado, PhD, Prof., PORTUGAL Clara Azevedo, MD, PhD, PORTUGAL Ana Catarina Ângelo, MD, PORTUGAL
Histological changes during healing with autologous fascia lata graft after superior capsule reconstruction for the irreparable supraspinatus tear in a rabbit model Abstract Presentation 5 minutes Akihiko Hasegawa, MD, PhD, JAPAN Teruhisa Mihata, MD, PhD, JAPAN Yasuo Itami, MD, PhD, JAPAN Kunimoto Fukunishi, MD, JAPAN Masashi Neo, MD, PhD, Prof., JAPAN
What Is The Most Reliable Method Of Measuring Glenoid Bone Loss In Anterior Glenohumeral Instability? A Cadaveric Study Comparing Different Measurement Techniques For Glenoid Bone Loss. Abstract Presentation 5 minutes Antonio Arenas-Miquelez, MD, FEBOT, AUSTRALIA Danè Dabirrahmani, PhD, AUSTRALIA Gaurav Mahesh Sharma, MS, INDIA Petra Graham, PhD, AUSTRALIA Richard Appleyard, PhD, AUSTRALIA Desmond John Bokor, MB, BS, MHEd (Med), FRACS, FAOrthA, AUSTRALIA John Read, MD, AUSTRALIA Kalman John Piper, MBBS FRACS (Orth) FAOrthA RAN, AUSTRALIA Sumit Raniga, BSc MSc (1st Hons) MBChB FRACS FAOrthA, AUSTRALIA
Blood Glucose Levels In Diabetic Patients Following Intra-Articular Corticosteroid Injection Of The Shoulder: A Pilot Study Abstract Presentation 5 minutes Andres Barandiaran, MS, UNITED STATES Rachel M. Frank, MD, UNITED STATES Eric C. McCarty, MD, UNITED STATES Jonathan T. Bravman, MD, UNITED STATES Adam Seidl, MD, UNITED STATES
Combined Biological Augmentation Techniques in Revision Rotator Cuff Repair ePoster Presentation Maristella Francesca Saccomanno, MD, PhD, ITALY Martina Re, MD, ITALY Alessandra Scaini, MD, ITALY Emanuele Maggini, MD, ITALY Marco Adriani, MD, ITALY Alessandro Colosio, MD, ITALY Giuseppe Bertoni, MD, ITALY Niccolo Vaisitti, MD, ITALY Alberto Maurizio, MD, ITALY Giuseppe Frizziero, MD, ITALY Giuseppe Milano, Prof., ITALY
Kinematic Changes Are Associated With Improved Outcomes Following Superior Capsular Reconstruction Abstract Presentation 5 minutes Clarissa Levasseur, MS, UNITED STATES Gillian Kane, BS, UNITED STATES Jonathan D Hughes, MD, PhD, UNITED STATES Adam J. Popchak, DPT, PhD, UNITED STATES James J. Irrgang, PT, PhD, FAPTA, UNITED STATES William Anderst, PhD, UNITED STATES Albert Lin, MD, UNITED STATES
Does The Position During Postoperative Physiotherapy Affect Outcome Of Arthroscopic Treatment Of Acromioclavicular Dislocation; A Prospective Comparative Study ePoster Presentation Tarek M. T. Ghandour, MD, EGYPT
The Risk of Iatrogenic Radial Nerve and/or Profunda Brachii Artery Injury in Humeral Plating using a 4.5 mm Narrow DCP: A Cadaveric Study Abstract Presentation 5 minutes Chaiwat Chuaychoosakoon, MD, THAILAND Supatat Chirattikalwong, MD, THAILAND Watit Wuttimanop, MD, THAILAND Tanarat Boonriong, Principal, THAILAND Wachiraphan Parinyakhup, MD, THAILAND Sitthiphong Suwannaphisit, MD, THAILAND
Does the Walch Type B Shoulder have a Transverse Force Couple Imbalance? - A Volumetric Analysis of Segmented Rotator Cuff Muscles in Osteoarthritic Shoulders. ePoster Presentation Antonio Arenas-Miquelez, MD, FEBOT, AUSTRALIA Victor Liu, MD, AUSTRALIA Joseph Cavanagh, MBBS, CANADA Petra Graham, PhD, AUSTRALIA Louis Ferreira, PhD, CANADA Desmond John Bokor, MB, BS, MHEd (Med), FRACS, FAOrthA, AUSTRALIA George Athwal, MD, CANADA Sumit Raniga, BSc MSc (1st Hons) MBChB FRACS FAOrthA, AUSTRALIA
Biomechanical Comparison Of New Transosseous Rotator Cuff Repair Technique Versus Conventional Transosseous And Transosseous Equivalent Technique ePoster Presentation Suwittaya Thienpratharn, MD, THAILAND Ekavit Keyurapan, MD, THAILAND
Magnetic Resonance Imaging Classification For The Assessment Of Tendon Integrity Of The Rotator Cuff After Repair. A Reliability Study ePoster Presentation Alessandra Scaini, MD, ITALY Maristella Francesca Saccomanno, MD, PhD, ITALY Marcello Motta, MD, ITALY Alessandro Colosio, MD, ITALY Marco Adriani, MD, ITALY Giuseppe Bertoni, MD, ITALY Niccolo Vaisitti, MD, ITALY Giuseppe Frizziero, MD, ITALY Alberto Maurizio, MD, ITALY Mac Donald Tedah Djemetio, MD, ITALY Emanuele Maggini, MD, ITALY Giuseppe Milano, Prof., ITALY
Dermal Patch Augmented Versus Standard Rotator Cuff Repair: Randomised Controlled Trial Abstract Presentation 4 minutes Priyadarshi Amit, MS, DNB, MRCSEd, MCh, FRCS, UNITED KINGDOM Martyn Snow, FRCS, UNITED KINGDOM
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 ePoster Presentation Vincenzo Candela, ITALY Umile Giuseppe Longo, MD, MSc, PhD, Prof., ITALY Salvatore Maria Maria Tecce, MD, ITALY Francisco Forriol, MD, PhD, SPAIN Jose R Altonaga, MD, SPAIN Andrew L Wallace, MD, UNITED KINGDOM Vincenzo Denaro, MD, PhD, Prof., ITALY
Surgical Technique And Prosthesis Geometry Affect In Vivo Kinematics, Strength, And Contact Path After Reverse Shoulder Arthroplasty Abstract Presentation 5 minutes Clarissa Levasseur, MS, UNITED STATES Ajinkya Rai, BS, UNITED STATES Gillian Kane, BS, UNITED STATES Alexandra Santina Gabrielli, MD, UNITED STATES Jonathan D Hughes, MD, PhD, UNITED STATES William Anderst, PhD, UNITED STATES Albert Lin, MD, UNITED STATES
Use Of Preoperative Advanced Imaging For Reverse Total Shoulder Arthroplasty Abstract Presentation 5 minutes Jourdan Michael Cancienne, MD, UNITED STATES Patrick J. Denard, MD, UNITED STATES Brian C Werner, MD, UNITED STATES
High Correlation Between Inner And Outer Glenoid Circle Diameters And Its Clinical Relevance. Comparison Of The Itoi And Sugaya Circles In Glenoid Bone Loss ePoster Presentation Antonio Arenas-Miquelez, MD, FEBOT, AUSTRALIA Orestis Karargyris, MD, GREECE Petra Graham, PhD, AUSTRALIA Ralph Hertel, Prof., SWITZERLAND
Superior Labrum Anterior-Posterior (Slap) Repair Versus Subpectoral Biceps Tenodesis For Isolated Slap II Lesions In Overhead Athletes Aged Younger 35 Years: A Comparison Of Minimum Two-Year Outcomes Abstract Presentation 3 minutes Lucca Lacheta, MD, GERMANY Marilee P. Horan, MPH, UNITED STATES Travis Dekker, MD, UNITED STATES Brandon Goldenberg, MD, UNITED STATES Grant J Dornan, MS, UNITED STATES Peter J. Millett, MD, MSc, UNITED STATES
Failure After Arthroscopic Acromioclavicular Fixation Using Tight Rope; Is It Related To Coracoid Tunnel Dilatation! A Ct Based Study ePoster Presentation Begad H. M. Z. Abdelrazek, M.Sc., MD, FRCS Trauma and Orthopedics, EGYPT Mohamed Refaat Waly, MD,MRCS, EGYPT Ahmed Fouad Seifeldin , MD, MRCS, EGYPT Ahmed Samir Samir Elkalyoby, MD, EGYPT Ahmed Rezk, EGYPT Khaled As Shohayeb, MD, Prof., EGYPT
Understanding The Reasons Why Patients Do Not Achieve An Acceptable Symptom State After Reverse Shoulder Arthroplasty Abstract Presentation 5 minutes Brian C Werner, MD, UNITED STATES Evan Lederman, MD, UNITED STATES Reuben Gobezie, MD, UNITED STATES Patrick J. Denard, MD, UNITED STATES
Anchor Arthropathy Of The Shoulder Joint After Instability Repair: Outcomes After Failed Instability Repair Due To Arthropathy ePoster Presentation Matthew T. Provencher, MD, UNITED STATES Joseph J. Ruzbarsky, MD, UNITED STATES Robert Walz, MD , UNITED STATES Annalise Peebles, BA , UNITED STATES Jeffrey Wong, UNITED STATES Petar Golijanin, MD, MBA, UNITED STATES Justin W. Arner, MD, UNITED STATES Liam A. Peebles, BA, UNITED STATES Jonathan Godin, MD, MBA, UNITED STATES Peter J. Millett, MD, MSc, UNITED STATES
Open Versus Modi?ed Arthroscopic Treatment Of Acute Acromioclavicular Dislocation Using A Single Tight Rope: Randomized Comparative Study Of Clinical Outcome And Cost-Effectiveness ePoster Presentation Tarek M. T. Ghandour, MD, EGYPT
Progression To Glenohumeral Arthritis After Arthroscopic Anterior Stabilization In A Young And High Demand Population Award Winner 4 minutes Bobby Yow, MD, UNITED STATES Ashley Bee Anderson, MD, UNITED STATES Sean E. Slaven, MD, UNITED STATES Kelly Kilcoyne, MD, UNITED STATES Jon F. Dickens, MD, UNITED STATES
Diagnosis And Treatment Of Snapping Scapula Syndrome: A Scoping Review ePoster Presentation Hassan Baldawi, MB, BCh, BAO, MSc (Candidate) , CANADA Kyle Gouveia, MD, CANADA Chetan Gohal, MD, CANADA Latifah Al Mana, MBBS, CANADA Ryan Paul, MD, MSc, FRCSC, CANADA Bashar Alolabi, MD, MSc, FRCSC, CANADA Jaydeep Moro, MD, FRCSC, CANADA Moin Khan, MD, MSc, FRCSC, CANADA
Does Acromioclavicular Joint Tenderness Affect The Outcome Of Rotator Cuff Repair? A Prospective Cohort Study ePoster Presentation Priyadarshi Amit, MS, DNB, MRCSEd, MCh, FRCS, UNITED KINGDOM Shahbaz S Malik, BSc, MB BCh, MSc (Orth Engin), LLM, FRCS (Tr&Orth), UNITED KINGDOM Samir Massoud, FRCS, UNITED KINGDOM
Magnetic resonance imaging criteria for the preoperative assessment of the rotator cuff tears: a systematic review ePoster Presentation Marco Adriani, MD, ITALY Maristella Francesca Saccomanno, MD, PhD, ITALY Alessandra Scaini, MD, ITALY Marcello Motta, MD, ITALY Martina Re, MD, ITALY Alberto Maurizio, MD, ITALY Jacopo Maffeis, MD, ITALY Niccolo Vaisitti, MD, ITALY Mac Donald Tedah Djemetio, MD, ITALY Emanuele Maggini, MD, ITALY Giuseppe Milano, Prof., ITALY
Revision Rotator Cuff Repair Versus Primary Repair For Large To Massive Tears Involving Posterosuperior Cuff: Comparison Of Clinical And Radiological Outcomes Abstract Presentation 5 minutes Prashant Meshram, MBBS, MS, DNB (Ortho), UNITED ARAB EMIRATES Bei Liu, MD, KOREA, REPUBLIC OF Sang Woo Kim, MD, KOREA, REPUBLIC OF Kang Heo, MD, KOREA, REPUBLIC OF Joo Han Oh, MD, PhD, KOREA, REPUBLIC OF
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 ePoster Presentation Robin Israel Villegas, MD, ECUADOR Hugo Santiago Barros, MD, ECUADOR
Posterior Rotator Cuff Fatty Infiltration Associated With Increased Posterior Glenoid Wear In Glenohumeral Osteoarthritis: An Mri-Based Study Abstract Presentation 5 minutes Matthew J. Hartwell, MD, UNITED STATES Ryan Elijah Harold, MD Patrick Thomas Sweeney, MD, UNITED STATES Amee L Seitz, PT, DPT, PhD, UNITED STATES Guido Marra, MD Matthew D Saltzman, MD, UNITED STATES
Outcomes Of Arthroscopic Latarjet As A Revision Procedure For Treatment Of Recurrent Anterior Shoulder Instability After Failed Arthroscopic Bankart Repair. A Case Series ePoster Presentation Lika Dzidzishvili, MD, PhD, SPAIN Claudio Calvo Palma, MD, PhD, CHILE María Valencia Mora, MD, PhD, SPAIN Antonio Foruria, MD, PhD, SPAIN Emilio Calvo, MD, PhD, MBA, SPAIN
Epidemiology, Treatment Concepts And Complications After Periprosthetic Humeral Fractures - A Multicenter Data Analysis ePoster Presentation Sandra Boesmueller, MD, PhD, AUSTRIA Greta Lorenz, MD, AUSTRIA Daniel Schallmayer, MD, AUSTRIA Oliver Holub, MD, AUSTRIA Rudolf Maximilian Kinsky, MD, AUSTRIA Christian Fialka, AUSTRIA Rainer Mittermayr, MD, MBA, AUSTRIA
Scapular Kinematics And Pattern Of Scapular Dyskinesis In Rotator Cuff Tears. A Prospective Cohort Study ePoster Presentation Umile Giuseppe Longo, MD, MSc, PhD, Prof., ITALY Laura Risi Ambrogioni, MD, ITALY Vincenzo Candela, ITALY Alessandra Berton, MD, ITALY Giuseppe Salvatore, MD, PhD, ITALY Vincenzo Denaro, MD, PhD, Prof., ITALY
Do Psychosocial Factors Affect Outcomes After Arthroscopic Rotator Cuff Repair? ePoster Presentation Maxime Antoni, MD, FRANCE Clément Dujeux, MD, FRANCE Charles Thery, MD, FRANCE Philippe Clavert, MD, PhD, FRANCE
Arthroscopic Latarjet Procedure For Recurrence Of Anterior Shoulder Instability After Failed Arhroscopic Bankart Repair Abstract Presentation 4 minutes Manuel Olmos, MD, ARGENTINA Mikaël Chelli, MD, FRANCE Jakub Stefaniak, MD, POLAND David J Saliken, MD FRCSC, CANADA Patrick Gendre, MD, FRANCE Gilles Clowez, MD, FRANCE Pascal Boileau, MD, Prof., FRANCE
A Study For Monitoring Scapular Movements By Using Polymer-Encapsulated Strain Sensors Based On Conductive Textile ePoster Presentation Umile Giuseppe Longo, MD, MSc, PhD, Prof., ITALY Arianna Carnevale, Eng, ITALY Emiliano Schena, Eng, ITALY Carlo Massaroni , Eng, ITALY Vincenzo Candela, ITALY Alessandra Berton, MD, ITALY Giuseppe Salvatore, MD, PhD, ITALY Vincenzo Denaro, MD, PhD, Prof., ITALY
Diagnostic Value Of Various Measurement Methods For Hill-Sachs Lesions ePoster Presentation Mirco Sgroi, MD, GERMANY Hashuka Huzurudin, MD, GERMANY Marius Ludwig, MD, GERMANY Michael Fuchs, Dr., GERMANY Heiko Reichel, Prof., GERMANY Thomas Kappe, MD, Prof., GERMANY
Health Literacy in Shoulder Labral Repair: A Quantitative Assessment of the Understandability and Readability of Online Patient Education Material ePoster Presentation Olivia O'Reilly, MD, UNITED STATES Mary Kate Skalitzky, BA, UNITED STATES Alan Shamrock, MD, UNITED STATES Burke Gao, MD, UNITED STATES Trevor Gulbrandsen, MD, UNITED STATES Brendan Patterson, MD, UNITED STATES
The Anatomical Concave Surface Area Method, a 3-Dimensional Quantification of Glenoid Bone Loss in Shoulder Instability Abstract Presentation 5 minutes Marine Launay, MEng, AUSTRALIA Muhammad Naghman Choudhry, MBChB, MRCS, FRCS, AUSTRALIA Nicholas Green, MEng, BDes, AUSTRALIA Jashint Maharaj, MBBS, FRSPH, AUSTRALIA Peter Pivonka, PhD, AUSTRALIA Kenneth Cutbush, MBBS, FRACS, FAOrthA, AUSTRALIA Ashish Gupta, MBBS, MSc, FRACS, FAORTHOA, AUSTRALIA
Benefits Of The Recenter: An Arthroscopic Bankart Repair Augmentation For Recurrent Anterior Shoulder Instability With Minimum 2-Year Follow-Up ePoster Presentation Kevin Picard, MD, FRANCE Jean-David Raphael Werthel, MD, PhD, Prof, FRANCE Thomas Bauer, MD, PhD, FRANCE Alexandre Hardy, MD, PhD, FRANCE
From open to arthroscopic Latarjet; An evaluation of the learning curve of the first 103 cases Abstract Presentation 5 minutes Berte Bøe, MD, PhD, NORWAY Ingvild Blich, PT, NORWAY Ragnhild Øydna Støen, MD, PhD, NORWAY Gilbert Moatshe, MD, PhD, NORWAY Tom Clement Ludvigsen, MD, NORWAY
Incidence And Complications Of Primary And Revision Shoulder Arthroplasty From 2010-2018 Abstract Presentation 5 minutes Christopher L. McCrum, MD, UNITED STATES Jacob Thomas Wood, BS, UNITED STATES Michael Khazzam, MD, UNITED STATES Senthil Sambandam, MD, UNITED STATES
Button Fixation Does Not Affect the Learning Curve and Short-Term Radiographic Outcomes for Arthroscopic Anatomic Glenoid Reconstruction with Distal Tibia Allograft ePoster Presentation Alexander Harper, BSc, CANADA Sara Sparavalo, B.Sc., M.A.Sc., CANADA Jie Ma, CANADA Ivan Wong, MD, FRCSC, MACM, Dip. Sports Med, CANADA
Arthroscopic Rotator Cuff Repair: Outcomes After Knotted Verses Knotless Double Row Transosseous Equivalent Repair Techniques ePoster Presentation Michael Andrew Fox, MD, UNITED STATES Jonathan D Hughes, MD, PhD, UNITED STATES Nyaluma N. Wagala, MD, UNITED STATES Neel K. Patel, MD, UNITED STATES Adam J. Popchak, DPT, PhD, UNITED STATES Bryson P. Lesniak, MD, UNITED STATES Albert Lin, MD, UNITED STATES
Superior Capsule Reconstruction Does Partially Restore Glenohumeral Stability In Massive Posterosuperior Rotator Cuff Deficiency - A Dynamic Robotic Shoulder Model Abstract Presentation 4 minutes Lucca Lacheta, MD, GERMANY Alex Brady, MSc, UNITED STATES Samuel I Rosenberg, MD, UNITED STATES Travis Dekker, MD, UNITED STATES Ritesh Kashyap, MD, UNITED STATES Grant J Dornan, MS, UNITED STATES Matthew T. Provencher, MD, UNITED STATES Peter J. Millett, MD, MSc, UNITED STATES
Reliable Clinical and Sonographic Outcomes of Subpectoral Biceps Tenodesis using an All-Suture Anchor Onlay Technique ePoster Presentation Hannes Degenhardt, MD, GERMANY Marco-Christopher Rupp, MD, GERMANY Jonas Pogorzelski, MD, PhD, MHBA, GERMANY Alexander Themessl, MD, GERMANY Lukas Nawid Muench, MD, GERMANY Judith Wechselberger , MD, GERMANY Klaus Wörtler, MD, Prof., GERMANY Sebastian Siebenlist, MD, MHBA, Prof., GERMANY Andreas B. Imhoff, MD, Prof. Emeritus, GERMANY Bastian Scheiderer, MD, GERMANY
Graft Augmented Osteosynthesis Of Proximal Humerus Fracture In Osteoporotic Fractures ePoster Presentation Dr.Neelanagowda V P Patil, MBBS , MS , INDIA Arun Gr, MBBS,MS,FASM, INDIA Ravi G R, MBBS,MS orthopaedics , INDIA Manohar Rao H R, MS ORTHOPAEDICS, INDIA
Differences in Glenohumeral Joint Capsule Dimensions on MR Analysis in Adolescent Patients with MDI and Bankart Tear Abstract Presentation 4 minutes Mason Cole Yoder, BS, UNITED STATES Colin McDonald, MD, UNITED STATES Shital N. Parikh, MD, UNITED STATES
Platelet-Rich Plasma Injection Reduces Tear Size In Partial Supraspinatus Tendon Tears Compared To Conventional Steroid Injection Abstract Presentation 5 minutes Thanathep Tanpowpong, MD, THAILAND Marvin Thepsoparn, MD, THAILAND Somsak Kuptniratsaikul, MD, THAILAND Thun Itthipanichpong, MD, THAILAND Danaithep Limskul, MD, THAILAND Achitpol Thongkam, THAILAND Numphung Numkarunarunrote, MD, THAILAND Chindarat Ratanakornphan, MD, THAILAND Aticha Ariyachaipanich, MD, THAILAND Timporn Vitoonpong, MD, THAILAND Phark Thanphraisan, MD, THAILAND
Micromotion Of Symmetry And Asymmetry Prostheses Designs With Different Curvature And Variable Peg Length Cemented And Uncemented Using Finite Element Analysis. ePoster Presentation Farid Amirouche, PhD, UNITED STATES Jason L. Koh, MD, MBA, UNITED STATES Siddhant Thakur, MS, UNITED STATES
Outcomes Of Obstructive Sleep Apnea Patients Undergoing Rotator Cuff Repair Abstract Presentation 5 minutes Andres Barandiaran, MS, UNITED STATES Rachel M. Frank, MD, UNITED STATES Jonathan T. Bravman, MD, UNITED STATES Adam Seidl, MD, UNITED STATES Eric C. McCarty, MD, UNITED STATES
Management Of Irreparable Rotator Cuff Tears: Superior Capsular Reconstruction Vs. Marginal Convergence Abstract Presentation 4 minutes Neel K. Patel, MD, UNITED STATES Nyaluma N. Wagala, MD, UNITED STATES Christopher John Como, BSE, UNITED STATES Bryson P. Lesniak, MD, UNITED STATES Albert Lin, MD, UNITED STATES
Outcome Of Arthroscopic Suspensory Fixation Systems In Acromioclavicular Joint Injuries ePoster Presentation Mohamed Ibrahim, MD, EGYPT Ibrahim Mohsen, MD, PhD, EGYPT Mohamed Safaa Eldeen Arafa, MD, EGYPT Haytham Abdel Aty, MD, PhD, EGYPT Kamal Abdel Meguid, MD, PhD, Prof., EGYPT Alexandre Lädermann, MD, SWITZERLAND
Smokers Benefit From Rotator Cuff Repair ePoster Presentation Kirsten Lundgreen, MD, PhD, NORWAY Christian Owesen, MD, PhD, NORWAY Sigbjorn Dimmen, Prof., MD, PhD, NORWAY Kjersti Kaul Jenssen, MD, PhD, NORWAY
Goutallier Classification Reliability May Be Impacted By The Size Of The Rotators Cuff Tear. Abstract Presentation 3 minutes Adam Kwapisz, MD, PhD, POLAND Sheila McRae, PhD, MSc, CANADA Urszula Smyczynska, PhD, POLAND James Koenig, MD, CANADA Graeme Matthewson, MD, CANADA Jarret M. Woodmass, MD, FRCSC, CANADA Fleur Verhulst, MD, NETHERLANDS Yiyang Zhang, MD, CANADA Laurie Stillwater, MD, CANADA Jason A. Old, MD, FRCSC, CANADA Peter B. MacDonald, MD, FRCS, Dip Sport Med, CANADA
How Low Can You Go? A Biomechanical Study Analyzing Coracoid Stability After Coracoplasty Abstract Presentation 5 minutes Lukas F. Heilmann, MD, GERMANY Julia Sußiek, , GERMANY Michael J. Raschke, MD, Prof., GERMANY Andre Frank, MSc, GERMANY Jens Wermers, Prof., GERMANY Philipp Michel, MD, GERMANY Felix Dyrna, MD, GERMANY Benedikt Schliemann, MD, GERMANY J. Christoph Katthagen, MD, GERMANY
Acromioclavicular Joint Disc Injury. Clinical Outcomes From Arthroscopic Resection of the Distal Clavicle and Joint. ePoster Presentation John Adam, FRCS Tr & Orth, UNITED KINGDOM Pratima Khincha, MBBS, D.Orth, M.Ch. , MRCS, FRCS T&O Edin Uk, INDIA Neil Jain, BM, MRCS(Ed), FRCS(Tr&Orth), UNITED KINGDOM
Open Subpectoral Biceps Tenodesis Versus Arthroscopic Repair For Slap Tears In Patients Under 30 Abstract Presentation 4 minutes Eoghan T. Hurley, MB, BCh, MCh, IRELAND Christopher Angelo Colasanti, MD, UNITED STATES Nathan A Lorentz, BS , UNITED STATES Kirk Anthony Campbell, MD, UNITED STATES Laith M. Jazrawi, MD, UNITED STATES Eric Jason Strauss, MD Bogdan Matache, MD, CANADA Michael J Alaia, MD, UNITED STATES
Clinical And Patient-Reported Outcomes Of Reverse Shoulder Arthroplasty In Patients Receiving Social Security Disability Insurance Or Workers’ Compensation ePoster Presentation Prashant Meshram, MBBS, MS, DNB (Ortho), UNITED ARAB EMIRATES Stephen C. Weber, MD, UNITED STATES Matthew Binkley, UNITED STATES Gary W. Pushkin, MD, UNITED STATES Uma Srikumaran, MD, MBA, MPH, UNITED STATES Edward G McFarland, MD, FAAOS, UNITED STATES
Arthroscopic Bone Block Stabilisation Procedures For Glenoid Bone Loss In Anterior Glenohumeral Instability: A Systematic Review Of Clinical And Radiological Outcomes Abstract Presentation 5 minutes Muaaz Tahir, BSc, MBBS, FRCS, UNITED KINGDOM Shahbaz S Malik, BSc, MB BCh, MSc (Orth Engin), LLM, FRCS (Tr&Orth), UNITED KINGDOM Robert Jordan, MB BS, MSc, FRCS (Tr&Orth), UNITED KINGDOM Madara Kronberga , MB BS, UNITED KINGDOM Peter Alberto D'Alessandro, MBBS Hons. (UWA) FRACS FAOrthA, AUSTRALIA Adnan Saithna, MD, FRCS, UNITED STATES
Performance-Based Outcomes After Shoulder Arthroscopy in Professional Athletes Among Different Sports ePoster Presentation Margaret J Higgins, BS, UNITED STATES Steven DeFroda, MD, UNITED STATES Daniel S. Yang, BS, UNITED STATES Symone M Brown, MPH, UNITED STATES Mary K. Mulcahey, MD, UNITED STATES
Timing Of Return To Hitting Following Ulnar Collateral Ligament Reconstruction In Professional Baseball Players Abstract Presentation 5 minutes Brandon Erickson, MD, UNITED STATES Peter Chalmers, MD, UNITED STATES John D'Angelo, BA, UNITED STATES Kevin Ma, BS, UNITED STATES Scott Sheridan, ATC, UNITED STATES Mark Steven Schickendantz, MD, UNITED STATES Anthony A. Romeo, MD, UNITED STATES
Advanced 3-Dimensional Analysis Of The Interplay Between Hill-Sachs Lesions And Glenoid Bone Loss Abstract Presentation 5 minutes Matthew T. Provencher, MD, UNITED STATES Liam A. Peebles, BA, UNITED STATES Petar Golijanin, MD, MBA, UNITED STATES Annalise Peebles, BA , UNITED STATES Justin W. Arner, MD, UNITED STATES
Influence Of Age On Outcomes After Arthroscopic Rotator Cuff Repair Of Distal Supraspinatus Tear ePoster Presentation Maxime Antoni, MD, FRANCE Agostino Ricotta, MD, FRANCE Clément Dujeux, MD, FRANCE Charles Thery, MD, FRANCE Philippe Clavert, MD, PhD, FRANCE
Relationship Between Critical Shoulder Angle And Retear Rate After Arthroscopic Rotator Cuff Repair ePoster Presentation Christopher John Como, BSE, UNITED STATES Jonathan D Hughes, MD, PhD, UNITED STATES Albert Lin, MD, UNITED STATES
Anchor Arthropathy After Arthroscopic Shoulder Stabilization: History, Exam, And Imaging Findings Abstract Presentation 6 minutes Matthew T. Provencher, MD, UNITED STATES Robert Walz, MD , UNITED STATES Jeffrey Wong, UNITED STATES Annalise Peebles, BA , UNITED STATES Petar Golijanin, MD, MBA, UNITED STATES Joseph J. Ruzbarsky, MD, UNITED STATES Justin W. Arner, MD, UNITED STATES Liam A. Peebles, BA, UNITED STATES Jonathan Godin, MD, MBA, UNITED STATES Peter J. Millett, MD, MSc, UNITED STATES
Primary Interposition Dermal Allograft Cuff Reconstruction Is Superior To Revision After Failed Cuff Repair: A Clinical and Radiographic Analysis Abstract Presentation 4 minutes Ivan Wong, MD, FRCSC, MACM, Dip. Sports Med, CANADA Nedal Alkhatib, MD, CANADA Sara Sparavalo, B.Sc., M.A.Sc., CANADA Jie Ma, CANADA
An Arthroscopic Bone Block Procedure is Effective in Restoring Stability, Allowing Return to Sports in Cases of Glenohumeral Instability with Glenoid Bone Deficiency ePoster Presentation Ettore Taverna, MD, ITALY Vincenzo Guarrella, MD, ITALY Carlo Perfetti, MD, ITALY
Return To Play After Arthroscopic Management Of Rotator Cuff Tears In Professional Contact Athletes Abstract Presentation 4 minutes Gautam Yagnik, MD, UNITED STATES Luis A Vargas, MD, PhD, UNITED STATES John W. Uribe, MD, UNITED STATES John E. Zvijac, MD, UNITED STATES Jacob Seiler, MD, UNITED STATES
Health Literacy in Shoulder Arthroplasty: A Quantitative Assessment of the Readability, Understandability, And Actionability of Online Patient Education Material ePoster Presentation Trevor Gulbrandsen, MD, UNITED STATES Olivia O'Reilly, MD, UNITED STATES Burke Gao, MD, UNITED STATES Alan Shamrock, MD, UNITED STATES Brendan Patterson, MD, UNITED STATES
T2 Mapping Quantitative MRI Evaluation of Operatively Treated Anterior Shoulder Instability ePoster Presentation Forrest L. Anderson, MD, UNITED STATES Eric A Schweppe, MS, UNITED STATES Nathan S Lanham, MD, UNITED STATES Cesar D Lopez, BS, UNITED STATES Tony T. Wong, MD, UNITED STATES Charles Mitchell Jobin, MD, UNITED STATES
Minimum 10-Year Clinical And Functional Outcomes Following Arthroscopic 270° Labral Repair In Traumatic Shoulder Instability Involving Anterior, Inferior, And Posterior Labral Injury Abstract Presentation 6 minutes Daniel P. Berthold, Association.-Prof., GERMANY Matthew R. Levasseur, MD, UNITED STATES Lukas Nawid Muench, MD, GERMANY Michael R. Mancini, BS, UNITED STATES Julianna Lee, BS, UNITED STATES Knut Beitzel, Prof. Dr., GERMANY Andreas B. Imhoff, MD, Prof. Emeritus, GERMANY Robert A. Arciero, MD, UNITED STATES Bastian Scheiderer, MD, GERMANY Sebastian Siebenlist, MD, MHBA, Prof., GERMANY Augustus D. Mazzocca, MS, MD, UNITED STATES
Quality of life following an open Latarjet-Bristow procedure In a general population with a recurrent anterior shoulder Instability ePoster Presentation Collen Sandile Nkosi, MBChB, MMed ortho surg , FC Ortho (SA), SOUTH AFRICA Nyiko Chauke, MBCHB, FC Orth (CMSA),Mmed Ortho Surg (Wits), SOUTH AFRICA
How Glenohumeral Stability Is Affected by Concavity, Chondral Integrity, Bony Defects, and Bone Block Reconstructions of the Glenoid ePoster Presentation Jens Wermers, Prof., GERMANY Benedikt Schliemann, MD, GERMANY Michael J. Raschke, MD, Prof., GERMANY Philipp Michel, MD, GERMANY Lukas F. Heilmann, MD, GERMANY Felix Dyrna, MD, GERMANY Julia Sußiek, , GERMANY Andre Frank, MSc, GERMANY J. Christoph Katthagen, MD, GERMANY
Traumatic Rotator Cuff Tears Have Greater Improvements In Functional Outcomes Than Non-Traumatic Tears ePoster Presentation Brian M Godshaw, MD, UNITED STATES Jonathan D Hughes, MD, PhD, UNITED STATES Stephanie Boden, MD, UNITED STATES Bryson P. Lesniak, MD, UNITED STATES Albert Lin, MD, UNITED STATES
Real World Survey Burden Of Common Patient-Reported Outcome Measures Utilized In Shoulder Surgery ePoster Presentation Darby Adele Houck, BA, UNITED STATES Ian L Verbeck, MS, UNITED STATES Eric C. McCarty, MD, UNITED STATES Rachel M. Frank, MD, UNITED STATES Michelle Wolcott, MD, UNITED STATES Adam Seidl, MD, UNITED STATES Jonathan T. Bravman, MD, UNITED STATES
Outpatient Vs. Inpatient Anatomic Total Shoulder Arthroplasty: Outcomes And Complications ePoster Presentation Brandon Erickson, MD, UNITED STATES Yousef Shishani, MD, UNITED STATES Stacy Jones, UNITED STATES Meghan E. Bishop, MD, UNITED STATES Anthony A. Romeo, MD, UNITED STATES Reuben Gobezie, MD, UNITED STATES
Coracoclavicular Fixation Techniques For Neer IIb And ‘Extra-Lateral’ Fractures Of The Distal Clavicle: A Systematic Review And Case Series ePoster Presentation Andreas Panagopoulos, Professor , GREECE Solou Konstantina, MD, MSc, GREECE Marios Nicolaides, MSc, UNITED KINGDOM Ioannis K Triantafyllopoulos, MD, MSci, PhD, FEBOT, GREECE Antonios T. Kouzelis, MD, PhD, GREECE Zinon Kokkalis
Health Literacy in Shoulder Arthroscopy: A Quantitative Assessment of the Understandability and Readability of Online Patient Education Material ePoster Presentation Olivia O'Reilly, MD, UNITED STATES Mary Kate Skalitzky, BA, UNITED STATES Kyle Kesler, MD, UNITED STATES Alan Shamrock, MD, UNITED STATES Burke Gao, MD, UNITED STATES Trevor Gulbrandsen, MD, UNITED STATES Matthew J. Bollier, MD, UNITED STATES
Comparison Of Lower Trapezius And Latissimus Dorsi Transfer For Irreparable Posterosuperior Rotator Cuff Tears: A Dynamic Biomechanical Investigation Abstract Presentation 5 minutes Lukas Nawid Muench, MD, GERMANY Daniel P. Berthold, Association.-Prof., GERMANY Cameron Kia, MD, UNITED STATES ELIFHO OBOPILWE, ME, BSc, UNITED STATES Mark P. Cote, PT, DPT, MSCTR, UNITED STATES Andreas B. Imhoff, MD, Prof. Emeritus, GERMANY Bastian Scheiderer, MD, GERMANY Bassem T. Elhassan, MD, UNITED STATES Knut Beitzel, Prof. Dr., GERMANY Augustus D. Mazzocca, MS, MD, UNITED STATES
Bursal Acromial Reconstruction (Bar) Using An Acellular Dermal Allograft For Massive, Irreparable Posterosuperior Rotator Cuff Tears: A Dynamic Biomechanical Investigation ePoster Presentation Daniel P. Berthold, Association.-Prof., GERMANY Matthew Ravenscroft, MB, BS, MRCS, UNITED KINGDOM ELIFHO OBOPILWE, ME, BSc, UNITED STATES Mark P. Cote, PT, DPT, MSCTR, UNITED STATES Kane Zenon, BS, UNITED STATES Ryan M Bell, BS, UNITED STATES Augustus D. Mazzocca, MS, MD, UNITED STATES Lukas Nawid Muench, MD, GERMANY
Beach Chair Versus Lateral Decubitus Positioning For Primary Arthroscopic Anterior Shoulder Stabilization: A Consecutive Series Of 641 Shoulders Abstract Presentation 4 minutes Bobby Yow, MD, UNITED STATES Ashley Bee Anderson, MD, UNITED STATES Zein Aburish, BS, UNITED STATES David J Tennent, MD, UNITED STATES Lance LeClere, MD, UNITED STATES John-Paul Rue, MD, UNITED STATES Brett D. Owens, MD, UNITED STATES Michael A Donohue, MD, UNITED STATES Kenneth L. Cameron, PhD, MPH, ATC, UNITED STATES Matthew Posner, MD, UNITED STATES Jon F. Dickens, MD, UNITED STATES
Value-Based Care In Shoulder Arthroscopy: a Lean-Based Banyan Board Project Management Tool For Arthroscopic Rotator Cuff Repair Or Biceps Tenodesis ePoster Presentation Michael A Mastroianni, MS, UNITED STATES Alegra Mendez, BS, UNITED STATES Jeffrey Shi, BS, UNITED STATES Bradley Garcia, BS, UNITED STATES Marshal S Armitage, MD, UNITED STATES Frank McCormick, MD, UNITED STATES
Is Interposition Allograft Bridging Reconstruction Appropriate in Patients Older Than 60 Years Old? A Retrospective Mid-Term Analysis ePoster Presentation Ivan Wong, MD, FRCSC, MACM, Dip. Sports Med, CANADA Sara Sparavalo, B.Sc., M.A.Sc., CANADA Jie Ma, CANADA
Risk Factors for Retears Following repairs of Massive Rotator Cuff Tears With Or Without Involvement Of Subscapularis ePoster Presentation Silvampatti Ramasamy Sundararajan, MS(Orth), INDIA Rajagopalakrishnan Ramakanth, D.ortho, DNB(ortho), D.SICOT, INDIA Terence Dsouza, MS, DNB, FNB, INDIA S Rajasekaran, MS(Orth),DOrth,DNB,FRCS(Ed),FRCS(Lon),MCh(Liv),PhD, INDIA
Clinical Outcomes Of Rotator Cuff Anterior Cable Reconstruction With Long Head Of Biceps Tendon Autograft ePoster Presentation Raymond Chen, MD, UNITED STATES Ilya Voloshin, MD, UNITED STATES
Platelet Rich Plasma in Arthroscopic Rotator Cuff Repair: Clinical and Radiological Results of a Prospective Rct Study at 10-Year Follow-Up Abstract Presentation 4 minutes Pietro S. Randelli, MD, Prof., ITALY Carlo Stoppani, MD, ITALY Gianvito Santarsiero, MD, ITALY Elisabetta Nocerino, MD, ITALY Alessandra Menon, MD, ITALY
Pseudoparalysis And Subscapularis Insufficiency Are Not Contraindications For Superior Capsular Reconstruction ePoster Presentation Travis Frantz, MD, UNITED STATES Marisa Ulrich, BS, UNITED STATES Joshua Scott Everhart, MD, MPH, UNITED STATES Andrew Mundy, MD, UNITED STATES Jonathan D Barlow, MD Grant L. Jones, MD, UNITED STATES Julie Bishop, MD, UNITED STATES Gregory L. Cvetanovich, MD, UNITED STATES
Predicting Factors For Achieving Minimally Clinical Important Difference After Primary Shoulder Arthroplasty: A Machine Learning Model Abstract Presentation 4 minutes Ayoosh Pareek, MD, UNITED STATES Micah Nieboer, MD, UNITED STATES Jianing Man, PhD, UNITED STATES Ronda Esper, BS, UNITED STATES Kalyan Pasupathy, PhD, UNITED STATES Joaquin Sanchez-Sotelo, MD, UNITED STATES
Cannabis Use Is Associated With Fewer Postoperative Opioids And Fewer Thromboembolic Complications Following Shoulder Arthroscopy Abstract Presentation 5 minutes Christopher L. McCrum, MD, UNITED STATES
Interrater Reliability of Novice Sonographers Performing Ultrasonographic Measurements of Subacromial Structures in Patients With Subacromial Pain. Abstract Presentation 4 minutes Karen Mikkelsen, MD, DENMARK Adam Witten, MD, DENMARK Birgitte Hougs Kjær, PT, PhD, DENMARK Per Hölmich, DMSc, Prof., DENMARK Kristoffer W. Barfod, MD, PhD, Prof., DENMARK
Relation Between Sleep Position And Rotator Cuff Tears Abstract Presentation 5 minutes David P Richards, MD, FRCSC, UNITED STATES Daniel Miller, MD, CANADA David MacDonald, BSc.P.T., MBA, CANADA Stephen D Miller, MD, FRCSC, CANADA Quinn F. Stewart, BSc, CANADA
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% ePoster Presentation Luciano Rossi, PhD, ARGENTINA Ignacio Tanoira, MD PhD, ARGENTINA Ignacio Pasqualini, MD, ARGENTINA Tomás David Gorodischer, MD, ARGENTINA Maximiliano Ranalletta, MD, ARGENTINA
Reverse Total Shoulder Arthroplasty For Glenoid Bone Loss Without A Rotator Cuff Tear: A Concise Follow Up At A Minimum Of Five Years ePoster Presentation Stephen C. Weber, MD, UNITED STATES Edward G McFarland, MD, FAAOS, UNITED STATES Prashant Meshram, MBBS, MS, DNB (Ortho), UNITED ARAB EMIRATES Jorge Rojas Llevano, MD, COLOMBIA Jacob Joseph, BS, UNITED STATES Uma Srikumaran, MD, MBA, MPH, UNITED STATES
Reliability Of A Three-Dimensional Evaluation Of Bipolar Bone Defects In Anterior Gleno-Humeral Instability ePoster Presentation Giuseppe Bertoni, MD, ITALY Maristella Francesca Saccomanno, MD, PhD, ITALY Alessandra Scaini, MD, ITALY Jacopo Maffeis, MD, ITALY Alessandro Colosio, MD, ITALY Marco Adriani, MD, ITALY Marcello Motta, MD, ITALY Niccolo Vaisitti, MD, ITALY Giuseppe Frizziero, MD, ITALY Alberto Maurizio, MD, ITALY Giuseppe Milano, Prof., ITALY

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Increased Glenohumeral Joint Loads Due To A Supraspinatus Tear Can Be Reversed With Rotator Cuff Repair: A Biomechanical Investigation Of Joint Preservation

Increased Glenohumeral Joint Loads Due To A Supraspinatus Tear Can Be Reversed With Rotator Cuff Repair: A Biomechanical Investigation Of Joint Preservation

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Increased Glenohumeral Joint Loads Due To A Supraspinatus Tear Can Be Reversed With Rotator Cuff Repair: A Biomechanical Investigation Of Joint Preservation

Increased Glenohumeral Joint Loads Due To A Supraspinatus Tear Can Be Reversed With Rotator Cuff Repair: A Biomechanical Investigation Of Joint Preservation

Background

Methods

Results

Conclusion