Summary: In vivo kinematics and strength data suggest surgical technique affects in vivo contact patterns and strength after reverse shoulder arthroplasty.

Introduction

Reverse shoulder arthroplasty (RSA) is a procedure to reduce pain and restore function in patients with rotator cuff arthropathy1. In vitro studies suggest that modifications in prosthesis design and surgical technique can improve functional outcomes after RSA2, but little work has been done to quantify in vivo kinematics following RSA. The aim of this ongoing study is to determine the effects of surgical technique and prosthesis geometry on in vivo functional outcomes after RSA. We hypothesized that greater humeral retroversion would be related to a more posterior contact path and that greater lateralization would be related to greater strength and better patient-reported outcomes (PROs).

Methods

17 patients received RSA (10M, 7F, age 69.5±7.4 years) using a standard 145-degree humeral implant (Wright Med/Tornier) or 135-degree humeral implant (Arthrex) within 2.5±1.2 years of participating in this IRB-approved study. Surgical parameters of glenoid lateralization and humeral retroversion were recorded from surgical notes. ASES, DASH, and Constant-Murley surveys (CMS) were completed at testing. Participants performed 3 trials of scapular plane abduction while synchronized biplane radiographs of the shoulder were collected at 50 images/s for 2 seconds. Subject-specific models of the humerus and scapula with respective implants were created from CT scans and matched to the biplane radiographs to measure scapular and humerus motion with sub-millimeter accuracy3. The center of the contact region of the polyethylene and glenosphere was determined at 5-degree increments of glenohumeral (GH) abduction and averaged across trials. Isokinetic torque was recorded over the full ROM for flexion/extension, ab/adduction, and internal/external rotation at 30°/second using a Biodex. Both the peak torque and the total work done were used to quantify strength. Pearson’s correlations were used to identify associations between the anterior-posterior and superior-inferior location of the center of contact at every 5° of GH abduction and surgical parameters. Spearman’s correlations were used to identify associations between strength, surgical factors, and patient-reported outcomes (PROs) with significance set at p<0.05.

Results

Ten patients had 20° of humeral retroversion, four had 30°, and two had 40°. Ten patients had 0-2.0 mm lateralization, three had 2.1-4.0 mm, and four had 4.0-7.0 mm. During abduction, the center of contact path was posterior and inferior to the center of the glenosphere in all subjects. Increased retroversion was positively correlated with a more superior location of the center of contact between 35° and 60° of GH abduction (all p<0.01; R>0.85). No other correlations were found for center of contact (all p>0.31). Total adduction work was correlated with lateralization (?=0.58, p=0.015), and peak torque in external rotation was correlated with lateralization (?=0.57, p=0.017). CMS was correlated with total work in abduction, external and internal rotation (all ?=0.48, all p<0.047).

Discussion

Retroversion is associated with in vivo contact kinematics, and increased glenoid lateralization is associated with increased strength and better PROs after RSA, supporting our hypothesis. The results indicate surgical technique is associated with strength and PROs. Our results provide in vivo evidence confirming previous computational modeling and cadaver-based studies that demonstrated increased strength following RSA with lateralized designs.

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Acromioclavicular Joint Reconstruction Implants Have Differing Ability To Restore Horizontal And Vertical Plane Stability Abstract Presentation 4 minutes Mohamed Alkoheji, MB BCh FRCS (Tr&Orth), BAHRAIN Jillian Lee, BHB, MBChB, FRACS (Ortho), NEW ZEALAND Hadi El-Daou, PhD, UNITED KINGDOM Adrian Carlos, MB ChB MSc FRCS (Tr&Orth), UNITED KINGDOM Livio Di Mascio, MBBS FRCS (Tr&Orth), UNITED KINGDOM Andrew A. Amis, FREng, DSc, PhD, UNITED KINGDOM
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
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
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
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
The Result Of Long Term Follow Up Of Arthroscopic Partial Repair For Massive Irreparable Rotator Cuff Tear Using Biceps Long Head Auto Graft ePoster Presentation Sang-Hun Ko, MD, Prof., KOREA, REPUBLIC OF Yong Tae Joo, KOREA, REPUBLIC OF Kyung-Joo Lee, MD, KOREA, REPUBLIC OF
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
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 Stemless Humeral Components In Total Shoulder Arthroplasty Abstract Presentation 5 minutes Raymond Chen, MD, UNITED STATES Emma Knapp, BS, UNITED STATES Anthony Miniaci, MD, FRCSC, UNITED STATES Hani Awad, PhD, UNITED STATES Ilya Voloshin, MD, 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
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
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
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
Low Possibility Of Developing Degenerative Changes After Arthroscopic Remplissage Augmenting The Classic Bankart Repair. Radiological Results After 10 Years Follow Up Abstract Presentation 5 minutes Prodromos Natsaridis, MD, MSc, GREECE Emmanouil V. Brilakis, MD, MSc, PhD, GREECE Stefania Kokkineli, MD, GREECE Emmanuel M. Antonogiannakis, MD, GREECE
The Latarjet Procedure In Competitive Athletes Younger Than 20 Years Old With A Significant Glenoid Bone Loss Abstract Presentation 4 minutes Luciano Rossi, PhD, ARGENTINA Ignacio Tanoira, MD PhD, ARGENTINA Ignacio Pasqualini, MD, ARGENTINA Maximiliano Ranalletta, MD, ARGENTINA
A 3-Dimensional Classification of Degenerative Arthritis of the Shoulder based on Humeroscapular Alignment ePoster Presentation Benjamin Daniel Kleim, MBBS, MD, MRes, GERMANY Maximilian Hinz, MD, GERMANY Stephanie Geyer, MD, GERMANY Sebastian Lappen, MD, GERMANY Bastian Scheiderer, MD, GERMANY Andreas B. Imhoff, MD, Prof. Emeritus, GERMANY Sebastian Siebenlist, MD, MHBA, Prof., GERMANY
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
Is Surgical Treatment An Advantage When Treating Acute AC Joint Dislocation Type III And V? A Prospective Randomized Clinical Trial Abstract Presentation 5 minutes Helena Boström Windhamre, MD, SWEDEN Johan Von Heideken, MD, PhD, SWEDEN Viveka Une-Larsson, PT, SWEDEN Wilhelmina Ekström, MD, Associate Professor, SWEDEN Anders Ekelund, SWEDEN
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
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
Outpatient Vs. Inpatient Reverse Total Shoulder Arthroplasty: Outcomes And Complications ePoster Presentation Brandon Erickson, MD, UNITED STATES Yousef Shishani, MD, UNITED STATES Stacy Jones, UNITED STATES Justin W. Griffin, MD, UNITED STATES Anthony A. Romeo, MD, UNITED STATES Reuben Gobezie, MD, UNITED STATES
Arthroscopic Repair Of U Shaped Rotator Cuff Tear: Modified Margin Convergence With A Single Triple Loaded Suture Anchor ePoster Presentation Siddharth Jain, M.S. ORTHOPEDICS, INDIA
Clinical Outcomes Of Rotator Cuff Repair As A Function Of Time To Surgery: A Retrospective Cohort Study ePoster Presentation Logan Finger, MD, UNITED STATES Robin H Dunn, MD, UNITED STATES Jonathan D Hughes, MD, PhD, UNITED STATES Albert Lin, MD, UNITED STATES
Progression To Glenohumeral Arthritis After Arthroscopic Posterior Stabilization In A Young And High Demand Population Abstract Presentation 5 minutes Bobby Yow, MD, UNITED STATES Ashley Bee Anderson, MD, UNITED STATES Patrick K Mescher, MD, UNITED STATES Timothy Murphy, MD, UNITED STATES Sean E. Slaven, MD, UNITED STATES Jon F. Dickens, MD, UNITED STATES
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
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
The epidemiology of acute acromioclavicular dislocations in an urban population. A prospective cohort study investigating the capital region of Denmark ePoster Presentation Kristine Bramsen Haugaard, MD, DENMARK Klaus Bak, MD, DENMARK Per Hölmich, DMSc, Prof., DENMARK Kristoffer Michael Seem, MD, DENMARK Kristoffer W. Barfod, MD, PhD, Prof., DENMARK
Why Athletes Don’T Return To Sports After Arthroscopic Bankart Repair? A Comparative Study Of 230 Athletes With A Mínimum 2 Years Follow-Up ePoster Presentation Luciano Rossi, PhD, ARGENTINA Ignacio Tanoira, MD PhD, ARGENTINA Ignacio Pasqualini, MD, ARGENTINA Rodrigo Nicolás Brandariz, MD, ARGENTINA Maximiliano Ranalletta, MD, ARGENTINA
Outcome Comparison between Healed and Unhealed Cases after Arthroscopic Rotator Cuff Repair with Muscle Advancement for Massive Rotator Cuff Tears ePoster Presentation Shin Yokoya, MD, PhD, JAPAN Yohei Harada, MD, PhD, JAPAN Yasuhiko Sumimoto, MD, JAPAN Nobuo Adachi, MD, PhD, JAPAN
Arthroscopic Bankart Repair Using Clavicle Autograft in High Risk Patients ePoster Presentation Jeffrey S. Abrams, MD, UNITED STATES
Survivorship And Patient-Reported Outcomes After Comprehensive Arthroscopic Management Of Glenohumeral Osteoarthritis: Minimum 10-Year Follow-Up Abstract Presentation 4 minutes Justin W. Arner, MD, UNITED STATES Bryant Elrick, MS, UNITED STATES Daniel B. Haber, MD, UNITED STATES Philip Nolte, MD, UNITED STATES Marilee P. Horan, MPH, UNITED STATES Peter J. Millett, MD, MSc, UNITED STATES
Significant Variability Exists In Preoperative Planning Software Measures Of Glenoid Morphology For Shoulder Arthroplasty Abstract Presentation 5 minutes Nicholas C. Laucis, MD, UNITED STATES Alex R. Webb, MD, UNITED STATES David X. Wang, MD, UNITED STATES Daniel M Dean, MD, UNITED STATES Joseph L. Rabe, MD, UNITED STATES David Matthew Lutton, MD, UNITED STATES Steven B Soliman, DO, RMSK, UNITED STATES Blake M. Bodendorfer, 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
A Multicenter Randomized Controlled Trial Comparing Single-Row With Double-Row Fixation In Arthroscopic Cuff Repair: Long Term Follow-Up Abstract Presentation 4 minutes Peter Lapner, MD, FRCSC, CANADA Ang Li, MD FRCSC, CANADA J Whitcomb Pollock, MD FRCSC, CANADA Tinghua Zhang, MSc, CANADA Katie McIlquham, CANADA Sheila McRae, PhD, MSc, CANADA Peter B. MacDonald, MD, FRCS, Dip Sport Med, CANADA
Lateralized Glenosphere Reverse Shoulder Arthroplasty: Inlay And Onlay Designs Have Similar Clinical Outcomes In Patients With Glenohumeral Osteoarthritis ePoster Presentation Prashant Meshram, MBBS, MS, DNB (Ortho), UNITED ARAB EMIRATES Stephen C. Weber, MD, UNITED STATES Uma Srikumaran, MD, MBA, MPH, UNITED STATES Edward G McFarland, MD, FAAOS, UNITED STATES
Preoperative Computerized Tomography Predicts Coracoid Graft Size And Restoration Of The Glenoid Track In Patients Undergoing Latarjet Procedures Abstract Presentation 8 minutes Brian M Godshaw, MD, UNITED STATES Jonathan D Hughes, MD, PhD, UNITED STATES Stephanie Boden, MD, UNITED STATES Albert Lin, MD, UNITED STATES Bryson P. Lesniak, MD, UNITED STATES
Treatment of Massive Irreparable Rotator Cuff Tears without Arthritis: A Comparison of Superior Capsular Reconstruction, Partial Rotator Cuff Repair, and Reverse Total Shoulder Arthroplasty Abstract Presentation 6 minutes 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 Gregory L. Cvetanovich, MD, UNITED STATES Julie Bishop, MD, 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
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
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
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
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
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
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
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
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
Arthroscopic Bankart Repair For Adolescent Anterior Shoulder Instability: Clinical And Radiographic Predictors Of Revision Surgery And Subjective Instability Abstract Presentation 5 minutes Crystal A. Perkins, MD, UNITED STATES Anthony Egger, MD, UNITED STATES Michael T. Busch, MD, UNITED STATES Sam Broida, BS, UNITED STATES Cliff Willimon, MD, UNITED STATES
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
Ligamentous And Capsular Contributions To Anterior-Posterior And Superior-Inferior Stability Of The Acromioclavicular Joint Abstract Presentation 4 minutes Mohamed Alkoheji, MB BCh FRCS (Tr&Orth), BAHRAIN Jillian Lee, BHB, MBChB, FRACS (Ortho), NEW ZEALAND Hadi El-Daou, PhD, UNITED KINGDOM Adrian Carlos, MB ChB MSc FRCS (Tr&Orth), UNITED KINGDOM Livio Di Mascio, MBBS FRCS (Tr&Orth), UNITED KINGDOM Andrew A. Amis, FREng, DSc, PhD, UNITED KINGDOM
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
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
Suprascapular Nerve Block Provides Adequate Analgesia Following Shoulder Arthroscopy ePoster Presentation Michael Warren, MD, UNITED STATES Brian M Godshaw, MD, UNITED STATES Michael Nammour, MD, UNITED STATES Misty Suri, MD, UNITED STATES
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
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
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
Pre- and Intra-operative Factors Affecting the Development of Post-operative Shoulder Stiffness. ePoster Presentation Pietro S. Randelli, MD, Prof., ITALY Alessandra Menon, MD, ITALY Sonia Maggi, MD, ITALY Francesca Maria Feroldi, MD, ITALY Emilia Tomarchio, MD, ITALY Max Julian Friedrich, MD, GERMANY Sebastian G. Walter, MD, GERMANY Davide Cucchi, MD, GERMANY
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
A Novel Button-Suture-Technique For Arthroscopic Treatment Of Anterior Glenoid Fractures – Excellent Clinical Outcome After A Minimum Of 6 Months ePoster Presentation Arasch Wafaisade, PD, GERMANY Andreas Karwatzke, MD, GERMANY Paola Kappel, MD, GERMANY Bertil Bouillon, MD, PhD, GERMANY Thomas R. Pfeiffer, Prof., GERMANY
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
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
Autograft VS Allograft VS Xenograft: Ct Scan Evaluation of Glenoid Grafting. Abstract Presentation 5 minutes Ettore Taverna, MD, ITALY Caterina Albizzini Ohin, MD, ITALY Vincenzo Guarrella, MD, ITALY Carlo Perfetti, MD, ITALY
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
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
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
Arthroscopic Bankart Repair Versus Open Latarjet Procedure For Recurrent Shoulder Dislocation: Which Is Better in Limited Resource Setting? ePoster Presentation Saroj Rai, MD, PhD, UNITED ARAB EMIRATES Binod Sherchan, MS, NEPAL
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
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
Utilization Of Patient-Reported Outcomes Measurement Information System (Promis) For Operative Shoulder Outcomes. ePoster Presentation Ilona Schwarz, MS, UNITED STATES John-Rudolph H. Smith, BS, UNITED STATES Darby Adele Houck, BA, UNITED STATES Rachel M. Frank, MD, UNITED STATES Jonathan T. Bravman, MD, UNITED STATES Eric C. McCarty, MD, UNITED STATES
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
Is Donor Site Morbidity A Valid Argument Against The Use Of Autologous Fascia Lata In Arthroscopic Superior Capsular Reconstruction? A Mid-Term Follow-Up Evaluation Of 53 Patients. Abstract Presentation 4 minutes Ana Catarina Ângelo, MD, PORTUGAL Clara Azevedo, MD, PhD, PORTUGAL
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
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
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
Upper Limb Lengthening in Achondroplasia Using Unilateral External Fixation ePoster Presentation Antonio Arenas-Miquelez, MD, FEBOT, AUSTRALIA Lucas Arbeloa-Gutierrez, MD, SPAIN Blanca Vazquez, MD, SPAIN Julio De Pablos, Prof. MD, PhD., SPAIN
Evaluation Of Short To Mid-Term Outcomes Following Shoulder Hemiarthroplasty For Avascular Necrosis Of The Humeral Head In Patients 40 Years And Younger ePoster Presentation Matthew Hrin, BA, UNITED STATES Edward C Beck, MD, MPH, UNITED STATES Evan Miller, MD, UNITED STATES Alexander Weimer, BS, UNITED STATES Colin M Robbins, BA, UNITED STATES John Hunter Matthews, MD, UNITED STATES Michael T. Freehill, MD, UNITED STATES Christopher J Tuohy, MD, UNITED STATES Ethan R. Wiesler, MD, UNITED STATES Benjamin R. Graves, MD, UNITED STATES Brian R. Waterman, 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
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
Systematic Review Of Arthroscopic Reconstruction Of Isolated Subscapularis Tendon Tear: Results, Role Of Coracoplasty And Management Of The Biceps Tendon Abstract Presentation 5 minutes Pablo A. Narbona, MD, ARGENTINA Rafael Norberto Martinez Gallino, MD, ARGENTINA Manuel Olmos, MD, ARGENTINA Gabriel Arce, MD, ARGENTINA
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
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
Clinical Outcomes of Rotator Cuff Repairs in Patients with Concomitant Glenohumeral Osteoarthritis Abstract Presentation 5 minutes Rajiv Pabbati Reddy, BS, UNITED STATES David Solomon, MD Jonathan D Hughes, MD, PhD, UNITED STATES Albert Lin, MD, UNITED STATES
Strength of elbow flexion and forearm supination after long head biceps treatment during rotator cuff repair Abstract Presentation 5 minutes Yohei Harada, MD, PhD, JAPAN Shin Yokoya, MD, PhD, JAPAN Yasuhiko Sumimoto, MD, JAPAN Nobuo Adachi, MD, PhD, JAPAN
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
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
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
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
Training With Lighter Baseballs Increases Velocity Without Increasing Injury Risk ePoster Presentation Brandon Erickson, MD, UNITED STATES Thomas Atlee, BS, UNITED STATES Peter Chalmers, MD, UNITED STATES Rocco Bassora, UNITED STATES V. Christopher Inzerillo, MD, MBA, UNITED STATES Andrew Beharrie, UNITED STATES Anthony A. Romeo, MD, UNITED STATES
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
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
Shoulder Surgery Post-Op Immobilization: An International Survey Of 499 Specialist Shoulder Surgeons Abstract Presentation 5 minutes Michael T. Freehill, MD, UNITED STATES Iain Robert Murray, MD, PhD, UNITED KINGDOM Emilio Calvo, MD, PhD, MBA, SPAIN Alexandre Lädermann, MD, SWITZERLAND Uma Srikumaran, MD, MBA, MPH, 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
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
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
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
Anterior Deltoid Muscle Reflection in a Deltopectoral Approach is Safe and Does not Influence the Outcome of Reversed Shoulder Arthroplasty. Abstract Presentation 5 minutes Bart-Jan Jd Veen, MD, NETHERLANDS Esther J Smits, PhD, AUSTRALIA Andrew Ker, MBChB, BSc (Hons), FRCSed (T+O), UNITED KINGDOM Brandon Ziegenfuss, BSc(Hons) MPH, AUSTRALIA Ashish Gupta, MBBS, MSc, FRACS, FAORTHOA, AUSTRALIA Kenneth Cutbush, MBBS, FRACS, FAOrthA, AUSTRALIA
Effectiveness Of In-Office Ultrasound For The Management Of Suspected Rotator Cuff And Biceps Pathology: An Institutional Evaluation of Surgeons With No Formal Training ePoster Presentation Jarret M. Woodmass, MD, FRCSC, CANADA Sheila McRae, PhD, MSc, CANADA Jamie Dubberley, MD, CANADA Jonathon Marsh, MD, CANADA Jason A. Old, MD, FRCSC, CANADA Gregory Adam Stranges, MD, CANADA Shahbaz S Malik, BSc, MB BCh, MSc (Orth Engin), LLM, FRCS (Tr&Orth), UNITED KINGDOM Jeff Leiter, PhD, CANADA Peter B. MacDonald, MD, FRCS, Dip Sport Med, CANADA
Characterization Of Hill-Sachs Lesions Based On Location, Orientation, And Volume: A 3-Dimensional Modeling Study Of 100 Anterior Shoulder Instability Patients Abstract Presentation 5 minutes Justin W. Arner, MD, UNITED STATES Petar Golijanin, MD, MBA, UNITED STATES Liam A. Peebles, BA, UNITED STATES Brenton Douglass, MD, UNITED STATES Matthew T. Provencher, MD, UNITED STATES
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
Latarjet-Patte Procedure Vs Modified Bristow-Latarjet Repair For Recurrent Anterior Dislocation Of The Shoulder. Our Experience In The Last 15 Years. ePoster Presentation Maximiliano Ibañez, MD, SPAIN Marta Comas Aguilar, MD, SPAIN Maria Teresa Marlet Jordana, MD, SPAIN Lautaro Candioti Benassi, MD, SPAIN Victor Marlet Naranjo, MD, SPAIN Xavier Mir, SPAIN
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
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
Proximal And Mid-Thigh Fascia Lata Graft Constructs Used For Arthroscopic Superior Capsular Reconstruction Show Equivalent Biomechanical Properties. An In Vitro Human Cadaver Study Abstract Presentation 5 minutes Clara Azevedo, MD, PhD, PORTUGAL Ana Catarina Ângelo, MD, PORTUGAL Carlos Quental, PhD, Prof., PORTUGAL Sérgio Gonçalves, MsC, PORTUGAL João Folgado, PhD, Prof., PORTUGAL Nuno Vieira Ferreira, MD, PORTUGAL Nuno Sevivas, MD, PhD, PORTUGAL
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
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
Outcomes Following Open Latarjet Procedure With Associated Rotator Cuff Repair ePoster Presentation Peter Domos, MD, FRCS(Tr&Orth), UNITED KINGDOM Mikaël Chelli, MD, FRANCE Lionel Neyton, MD, FRANCE Arnaud Godeneche, FRANCE Gilles Walch, MD, FRANCE
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
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
Do Pre-Op Corticosteroid Injections Increase Infections, Re-Ruptures And Revisions In Primary Arthroscopic Rotator Cuff Repair? Abstract Presentation 4 minutes Kevin D. Plancher, MD, MPH, UNITED STATES Grace Plassche, BS, UNITED STATES Stephanie C. Petterson, MPT, PhD, UNITED STATES
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
Inlay Total Shoulder Arthroplasty For The Treatment Of Advanced Glenohumeral Arthritis In Powerlifters And Bodybuilders; "The Return To Lift" Abstract Presentation 4 minutes Luis A Vargas, MD, PhD, UNITED STATES John W. Uribe, MD, UNITED STATES John E. Zvijac, MD, UNITED STATES Kevin Allan West, MD, UNITED STATES Matthias Schurhoff, MD, UNITED STATES Kristina Kuklova, MD, UNITED STATES
Best Way To Correct Reverse Shoulder Arthroplasty Angle In E1 And E3 Favard’S Glenoids. ePoster Presentation Michele Paciotti, MD, ITALY Edoardo Franceschetti, MD, ITALY Angelo Baldari, MD, ITALY Edoardo Giovannetti De Sanctis, MD, FRANCE Alessio Palumbo, MD, ITALY Francesco Franceschi, MD, Prof, ITALY
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
Subacromial Balloon Spacer for Massive, Irreparable Rotator Cuff Tears is Associated with Improved Shoulder Function and High Patient Satisfaction ePoster Presentation Filippo Familiari, MD, Prof., ITALY Suresh K Nayar, MD, UNITED STATES Raffaella Russo, MD, ITALY Marco De Gori, ITALY Francesco Ranuccio, MD, ITALY Valerio Mastroianni, MD, ITALY Ermenegildo Giuzio, Prof, ITALY Olimpio Galasso, MD, Prof., ITALY Giorgio Gasparini, MD, Prof., ITALY Edward G McFarland, MD, FAAOS, UNITED STATES Uma Srikumaran, MD, MBA, MPH, UNITED STATES
A New Mini-Open Technique Of Arthroscopically Assisted Latarjet ePoster Presentation Ettore Taverna, MD, ITALY Vincenzo Guarrella, MD, ITALY Carlo Perfetti, MD, ITALY
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
Defining Critical Glenoid Bone Loss In Posterior Shoulder Capsulolabral Repair Abstract Presentation 5 minutes Justin W. Arner, MD, UNITED STATES Joseph J. Ruzbarsky, MD, UNITED STATES Kaare Midtgaard, MD, NORWAY Liam A. Peebles, BA, UNITED STATES James P. Bradley, MD, UNITED STATES Matthew T. Provencher, MD, UNITED STATES
Outcome Comparison Of Graft Bridging And Superior Capsule Reconstruction For Large To Massive Rotator Cuff Tears Abstract Presentation 4 minutes Jinrong Lin, CHINA Yaying Sun, MD, CHINA Shaohua Liu, MD, CHINA Zheci Ding, MD, CHINA Jiwu Chen, MD, PhD, CHINA
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
Limited Utility Of Plain Radiographs For Non-Traumatic Shoulder Pain In Patients Under 50 And Implications For Telemedicine In Orthopaedics ePoster Presentation Alexandria Lichtl, BA, UNITED STATES Amelia Fitterer, BA, UNITED STATES Patrick Horve, BS, UNITED STATES Christopher S. Lee, MD, MBA, UNITED STATES
The Association of Charlson and Elixhauser Comorbidity Indices and Patient-Reported Outcomes in a Population Undergoing Shoulder Arthroplasty ePoster Presentation William A. Marmor, MD, UNITED STATES Brandon Schneider, MS, UNITED STATES Gabriella Ode, MD, UNITED STATES Lawrence V. Gulotta, MD, UNITED STATES Daphne Ling, PhD, MPH, TAIWAN
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
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
Return To Sport After Surgical Management Of Posterior Shoulder Instability: A Systematic Review And Meta-Analysis ePoster Presentation Kyle Gouveia, MD, CANADA Jeffrey Kay, MD, CANADA Muzammil Memon, MD, CANADA Nicole Simunovic, MSc, CANADA Asheesh Bedi, MD, UNITED STATES Olufemi R. Ayeni, MD, PhD, MSc, FRCSC, CANADA
Correlation Between Shoulder Function and Radiologic Severity of Supraspinatus Pathology Abstract Presentation 4 minutes Stephen M Gillinov, AB, UNITED STATES Nathan Varady, MD, MBA, UNITED STATES Paul F Abraham, BS, UNITED STATES Michael Peter Kucharik, BS, UNITED STATES Christopher T Eberlin, BS, UNITED STATES Scott D Martin, MD, UNITED STATES
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
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
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
Evaluation Of Knotted Vs Knotless Medial Row Transosseous Equivalent Rotator Cuff Repair: A Retrospective Review ePoster Presentation Daniel Nemirov, BA, UNITED STATES Zachary J Herman, MD, UNITED STATES Ryan W. Paul, BS, UNITED STATES Ari Clements, BA, UNITED STATES Matthew Beucherie, BS, UNITED STATES Joseph Michael Brutico, BS, UNITED STATES Christopher J. Hadley, BS, UNITED STATES Michael G. Ciccotti, MD, UNITED STATES Kevin Freedman, MD, UNITED STATES Brandon Erickson, MD, UNITED STATES Sommer Hammoud, MD, UNITED STATES Meghan E. Bishop, MD, UNITED STATES
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
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
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

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Surgical Technique And Prosthesis Geometry Affect In Vivo Kinematics, Strength, And Contact Path After Reverse Shoulder Arthroplasty

Surgical Technique And Prosthesis Geometry Affect In Vivo Kinematics, Strength, And Contact Path After Reverse Shoulder Arthroplasty

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Surgical Technique And Prosthesis Geometry Affect In Vivo Kinematics, Strength, And Contact Path After Reverse Shoulder Arthroplasty

Surgical Technique And Prosthesis Geometry Affect In Vivo Kinematics, Strength, And Contact Path After Reverse Shoulder Arthroplasty

Introduction

Methods

Results

Discussion