Summary: The posterior humeral head subluxation and glenoid retroversion, which are pathoneumonic of the Walch type B shoulder, may lead to a disturbance in the length-tension relationship of the posterior rotator cuff, thus causing geographic fatty infiltration.

Background

The etiology of the Walch type B shoulder remains unclear. We hypothesize that a scapulohumeral muscle imbalance, secondary to a disturbed transverse force couple (TFC) between the anterior and posterior rotator cuff muscles, may have a role in the pathogenesis of the type B morphology. The purpose of this study was to determine whether there is a transverse force couple imbalance in the Walch type B shoulder using an imaging-based 3D volumetric and fatty infiltration assessment of segmented rotator cuff muscles.

Methods

CT images of 33 Walch type A and 60 Walch type B shoulders with the complete scapula and humerus including the distal humeral epicondyles were evaluated. The 3D volumes of the entire subscapularis, supraspinatus, infraspinatus and teres minor were manually segmented and analyzed. Additionally, anthropometric parameters including glenoid version, glenoid inclination, posterior humeral head subluxation and humeral torsion were measured. The 3D muscle analysis was then compared to the anthropometric parameters using Wilcoxon rank-sum and Kruskal-Wallis tests.

Results

There were no significant differences (p>0.200) in muscle volume ratios between the infraspinatus-teres minor (Infra-Tm) and the subscapularis in Walch type A (0.93) and type B (0.96) shoulders. The fat infiltration percentage ratio, however, was significantly greater in type B shoulders (0.94 vs 0.75; p<0.001). The Infra-Tm to subscapularis fat infiltration percentage ratio was significantly larger in patients with >75% humeral head subluxation than 60-75% head subluxation (0.97 vs 0.74, p<0.001) and those with >25° retroversion than =15° retroversion (1.10 vs 0.75, p=0.004). The supraspinatus fatty infiltration percentage was significantly lower in Walch type B shoulders than type A shoulders (p=0.004). The Walch type A Shoulders had a mean humeral retrotorsion of 22±10°, while the Walch B types had a humeral retrotorsion of only 14±9° relative to the epicondylar axis (p<0.001).

Conclusion

Although the transverse force couple is in balance in the Walch type B shoulder in terms of 3D volumetric rotator cuff muscle analysis but the posterior rotator cuff has increased fatty infiltration. Posterior humeral head subluxation and glenoid retroversion, which are pathoneumonic of the Walch type B shoulder may lead to a disturbance in the length-tension relationship of the posterior rotator cuff causing fatty infiltration.

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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
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
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
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, AUSTRALIA Kenneth Cutbush, MBBS, FRACS, FAOrthA, AUSTRALIA
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
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, UNITED STATES Albert Lin, 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
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
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
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, UNITED STATES Nyaluma N. Wagala, MD, UNITED STATES Neel K. Patel, MD, UNITED STATES Adam Popchak, DPT, PhD, UNITED STATES Bryson P. Lesniak, MD, UNITED STATES Albert Lin, MD, UNITED STATES
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
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, UNITED STATES Stephanie Boden, MD, UNITED STATES Bryson P. Lesniak, MD, UNITED STATES Albert Lin, 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
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
Subscapularis-Sparing Approaches In Shoulder Arthroplasty: A Systematic Review ePoster Presentation Sandra Lee, BSc (Cand), CANADA Huda Sardar, BSc (Cand), CANADA Nolan Horner, MD, CANADA Latifah Al Mana, MBBS, CANADA Bruce S. Miller, MD, MS, UNITED STATES Moin Khan, MD, MSc, FRCSC, CANADA Bashar Alolabi, MD, MSc, FRCSC, CANADA
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
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
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
Arthroscopic Bankart Repair Using Clavicle Autograft in High Risk Patients ePoster Presentation Jeffrey S. Abrams, 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, UNITED ARAB EMIRATES
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
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
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, ITALY Alessio Palumbo, MD, ITALY Francesco Franceschi, MD, Prof, ITALY
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
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
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
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
Reconstruction With Tricortical Iliac Bone Graft In Patients With Shoulder Recurrent Anterior Instability With Bone Loss A Modified Eden Hybinette Technique ePoster Presentation Octavio Martinez Montiel, MD, MEXICO Adrian Aziz Cortes De La Fuente, MD, MEXICO Luis Alberto Jasso Ramirez, MD, MEXICO Gerson Valencia, MEXICO
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
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
Arthroscopic Reconstruction of the Glenoid Labrum with a Collagen Membrane Scaffold ePoster Presentation Giuseppe Milano, Prof., ITALY Alessandra Scaini, MD, ITALY Giuseppe Frizziero, MD, ITALY Niccolo Vaisitti, MD, ITALY Martina Re, MD, ITALY Giuseppe Bertoni, MD, ITALY Jacopo Maffeis, MD, ITALY Alessandro Colosio, MD, ITALY Marco Adriani, MD, ITALY Mac Donald Tedah Djemetio, MD, ITALY Marcello Motta, MD, ITALY Maristella Francesca Saccomanno, MD, PhD, ITALY
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
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
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
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, DENMARK
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
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
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
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, MBBS, MRCS, UNITED KINGDOM Robert Jordan, MB BS, MSc, FRCS (Tr&Orth), UNITED KINGDOM Peter B. MacDonald, MD, FRCS, Dip Sport Med, CANADA
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
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 515904945, MD, PORTUGAL Clara Azevedo, MD, PhD, PORTUGAL
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 factors influencing postoperative cuff integrity of arthroscopic rotator cuff repair combined with muscle advancement for massive rotator cuff tear Abstract Presentation 5 minutes Yasuhiko Sumimoto, MD, JAPAN Shin Yokoya, MD, PhD, JAPAN Yohei Harada, MD, PhD, JAPAN Nobuo Adachi, MD, PhD, JAPAN
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
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 Simone Randelli, MD, Prof., ITALY Carlo Stoppani, MD, ITALY Gianvito Santarsiero, MD, ITALY Elisabetta Nocerino, MD, ITALY Alessandra Menon, MD, ITALY
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
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, SPAIN Claudio Calvo Palma, MD, PhD, CHILE María Valencia Mora, MD, PhD, SPAIN Antonio Foruria, MD, PhD, SPAIN Emilio Calvo, MD, PhD, MBA, SPAIN
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, UNITED STATES William Anderst, PhD, UNITED STATES Albert Lin, MD, UNITED STATES
Effectiveness Of In-Office Ultrasound For The Management Of Suspected Rotator Cuff And Biceps Pathology: An Institutional Evaluation of Surgeons With No Formal Training 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
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
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
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
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
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
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, 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, MD, GERMANY Philipp Michel, MD, GERMANY Felix Dyrna, MD, GERMANY Benedikt Schliemann, MD, GERMANY J. Christoph Katthagen, MD, GERMANY
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
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
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
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
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
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
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, DENMARK
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
Urinary Tract Infections Diagnosed Within Two Weeks Prior To Shoulder Arthroplasty Are Associated With Increased Postoperative Infection Rates Abstract Presentation 3 minutes Jourdan Michael Cancienne, MD, UNITED STATES Brian C Werner, 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
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
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
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, UNITED STATES
Pre- and Intra-operative Factors Affecting the Development of Post-operative Shoulder Stiffness. ePoster Presentation Pietro Simone 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
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
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
Does Medialization Of Glenoid Bone-Baseplate Interface Caused By Eccentric Reaming Influence Outcomes Of Reverse Shoulder Arthroplasty? Abstract Presentation 5 minutes Prashant Meshram, MBBS, MS, DNB (Ortho), UNITED ARAB EMIRATES Jorge Rojas Llevano, MD, COLOMBIA Stephen C. Weber, MD, UNITED STATES Uma Srikumaran, MD, MBA, MPH, UNITED STATES Edward G. McFarland, UNITED STATES
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
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
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
Increased Glenohumeral Joint Loads Due To A Supraspinatus Tear Can Be Reversed With Rotator Cuff Repair: A Biomechanical Investigation Of Joint Preservation Award Winner 5 minutes Lukas Nawid Muench, MD, GERMANY Daniel P. Berthold, Association.-Prof., GERMANY Alexander Otto, MD, GERMANY Felix Dyrna, MD, GERMANY Ryan M Bell, BS, UNITED STATES ELIFHO OBOPILWE, ME, BSc, UNITED STATES Mark P. Cote, PT, DPT, MSCTR, UNITED STATES Andreas B. Imhoff, MD, Prof. Emeritus, GERMANY Augustus D. Mazzocca, MS, MD, UNITED STATES Knut Beitzel, Prof. Dr., 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
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
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
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
Should glenoid bone grafting only be used for previously failed Bankart stabilizations? The clinical outcomes of primary versus revision surgery using arthroscopic anatomic glenoid reconstruction for anterior shoulder instability. Abstract Presentation 5 minutes Ryland Murphy, BSc, CANADA Sara Sparavalo, B.Sc., M.A.Sc., CANADA Jie Ma, CANADA Ivan Wong, MD, FRCSC, MACM, Dip. Sports Med, CANADA
Quality of life following an open Latarjet-Bristow procedure In a general population with a recurrent anterior shoulder Instability ePoster Presentation Collen Nkosi, MBChB, SOUTH AFRICA Nyiko Chauke, MBCHB, FC Orth (CMSA),Mmed Ortho Surg (Wits), SOUTH AFRICA
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, FRANCE Thomas Bauer, MD, PhD, FRANCE Alexandre Hardy, MD, FRANCE
Latarjet After Failed Bankart Repair ePoster Presentation Benjamin Marjanovic, MD, SLOVENIA Marko Nabergoj, MD, SLOVENIA
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
Increased Abduction Range Of Motion During Functional Activities Is Associated With Improved Patient-Reported Outcomes After Reverse Shoulder Arthroplasty Abstract Presentation 5 minutes Christopher John Como, BSE, UNITED STATES Clarissa Levasseur, MS, UNITED STATES Jonathan D Hughes, MD, UNITED STATES William Anderst, PhD, UNITED STATES Albert Lin, MD, UNITED STATES
Clinical Outcomes Of Rotator Cuff Repair As A Function Of Time To Surgery: A Retrospective Cohort Study ePoster Presentation Logan Finger, BS, UNITED STATES Robin H Dunn, MD, UNITED STATES Jonathan D Hughes, MD, UNITED STATES Albert Lin, 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
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
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
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
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
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
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
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, AUSTRALIA
Why Athletes Don’T Return To Sports After Arthroscopic Bankart Repair? A Comparative Study Of 230 Athletes With A Mínimum 2 Years Follow-Up ePoster Presentation Luciano Rossi, PhD, ARGENTINA Ignacio Tanoira, MD PhD, ARGENTINA Ignacio Pasqualini, MD, ARGENTINA Rodrigo Nicolás Brandariz, MD, ARGENTINA Maximiliano Ranalletta, MD, ARGENTINA
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
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
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
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
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
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, UNITED STATES
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
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 Simone Randelli, MD, Prof., ITALY Antonio Marmotti, ITALY Laura de Girolamo, PhD, 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
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
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
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
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 515904945, 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
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
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
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
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
The Orientation of the Acromion is Not Associated with Different Asymmetric Posterior Glenoid Erosion Patterns Abstract Presentation 5 minutes Alexander Otto, MD, GERMANY Bastian Scheiderer, MD, GERMANY Julian Mehl, MD, GERMANY ELIFHO OBOPILWE, ME, BSc, UNITED STATES Patrick J. Denard, MD, UNITED STATES Anthony A. Romeo, MD, UNITED STATES Augustus D. Mazzocca, MS, MD, 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
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 515904945, MD, PORTUGAL
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
The Influence of the Morphology of The Acromio-Clavicular Joint on The Postoperative Outcome Following Acute Stabilization - A Case Series of 81 Patients Abstract Presentation 5 minutes Marco-Christopher Rupp, MD, GERMANY Hannes Degenhardt, MD, GERMANY Sonja Obmann, GERMANY Matthias Feucht, MD, GERMANY Sebastian Siebenlist, MD, MHBA, Prof., GERMANY Andreas B. Imhoff, MD, Prof. Emeritus, GERMANY Bastian Scheiderer, MD, GERMANY Jonas Pogorzelski, MD, PhD, MHBA, GERMANY
Type Iv and V Acromioclavicular Dislocation: Long Terms Results Of Conservative Treatment In Rugby Players. Abstract Presentation 5 minutes Franco Della Vedova, MD, ARGENTINA Matias Orlando, Md, ARGENTINA Hernan Galan, MD, ARGENTINA Daniel A. Slullitel, MD, Prof., ARGENTINA
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, UNITED STATES Adam Popchak, DPT, PhD, UNITED STATES James J. Irrgang, PT, PhD, FAPTA, UNITED STATES William Anderst, PhD, UNITED STATES Albert Lin, MD, UNITED STATES

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Does the Walch Type B Shoulder have a Transverse Force Couple Imbalance? - A Volumetric Analysis of Segmented Rotator Cuff Muscles in Osteoarthritic Shoulders.

Does the Walch Type B Shoulder have a Transverse Force Couple Imbalance? - A Volumetric Analysis of Segmented Rotator Cuff Muscles in Osteoarthritic Shoulders.

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Does the Walch Type B Shoulder have a Transverse Force Couple Imbalance? - A Volumetric Analysis of Segmented Rotator Cuff Muscles in Osteoarthritic Shoulders.

Does the Walch Type B Shoulder have a Transverse Force Couple Imbalance? - A Volumetric Analysis of Segmented Rotator Cuff Muscles in Osteoarthritic Shoulders.

Background

Methods

Results

Conclusion