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Elbow instability

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https://www.readbyqxmd.com/read/29781910/superior-baseplate-inclination-is-associated-with-instability-after-reverse-total-shoulder-arthroplasty
#1
Robert Z Tashjian, Brook I Martin, Cassandra A Ricketts, Heath B Henninger, Erin K Granger, Peter N Chalmers
BACKGROUND: Instability is the most common complication after reverse total shoulder arthroplasty (rTSA). In the native glenohumeral joint, in addition to full dislocations, more subtle forms of instability exist. However, the incidence of more subtle forms of instability, the factors associated with instability, and the effect of instability on validated outcome scores after rTSA remain poorly understood. QUESTIONS/PURPOSES: (1) After rTSA, what is the risk of instability, including more subtle forms of subjective instability? (2) What are the factors associated with instability? (3) Are more subtle forms of instability associated with lower American Shoulder and Elbow Surgeons (ASES) functional outcome scores than those patients without instability? METHODS: A total of 168 rTSAs were performed during the study period...
May 17, 2018: Clinical Orthopaedics and related Research
https://www.readbyqxmd.com/read/29734945/subtle-elbow-instability-associated-with-lateral-epicondylitis
#2
Sang Ho Kwak, Seung-Jun Lee, Hee Seok Jeong, Min Uk Do, Kuen Tak Suh
BACKGROUND: In lateral epicondylitis, even in the absence of apparent instability, subtle instability can be found under anesthesia. We wanted to ascertain the following: (1) how many elbows surgically treated with lateral epicondylitis showed subtle instability during examination under anesthesia (EUA), (2) how effective magnetic resonance imaging (MRI) was in predicting subtle instability, and (3) if any difference existed in preoperative clinical data between elbows with and without subtle instability during EUA...
May 7, 2018: BMC Musculoskeletal Disorders
https://www.readbyqxmd.com/read/29730139/failure-following-arthroscopic-bankart-repair-for-traumatic-anteroinferior-instability-of-the-shoulder-is-a-glenoid-labral-articular-disruption-glad-lesion-a-risk-factor-for-recurrent-instability
#3
Jonas Pogorzelski, Erik M Fritz, Marilee P Horan, J Christoph Katthagen, Matthew T Provencher, Peter J Millett
BACKGROUND: Recurrent instability is a frequent complication following arthroscopic Bankart repair. The purpose of this study was to investigate risk factors for poor patient-reported clinical outcome scores and failure rates. METHODS: Patients who underwent arthroscopic Bankart repair at least 2 years earlier were included. Preoperative and postoperative Single Assessment Numeric Evaluation; Quick Disabilities of the Arm, Shoulder and Hand; American Shoulder and Elbow Surgeons; and satisfaction scores were collected...
May 2, 2018: Journal of Shoulder and Elbow Surgery
https://www.readbyqxmd.com/read/29727895/in-vivo-axial-humero-ulnar-rotation-in-normal-and-dysplastic-canine-elbow-joints
#4
Thomas Rohwedder, Martin Fischer, Peter Böttcher
OBJECTIVE: To prospectively compare relative axial (internal-external) humero-ulnar rotation in normal and dysplastic canine elbow joints. MATERIAL AND METHODS: Six normal elbows (five dogs) and seven joints (six dogs) with coronoid disease were examined. After implantation of 0.8 mm tantalum beads into humerus and ulna, biplanar x-ray movies of the implanted elbows were taken while dogs were walking on a treadmill. Based on the 2D bead coordinates of the synchronized x-ray movies virtual 3D humero-ulnar animations were calculated...
April 2018: Tierärztliche Praxis. Ausgabe K, Kleintiere/Heimtiere
https://www.readbyqxmd.com/read/29721653/-instability-after-operative-and-conservative-treatment-of-isolated-mason-type-ii-fractures
#5
A von Glinski, V Rausch, M Königshausen, M Dudda, T A Schildhauer, D Seybold, J Geßmann
BACKGROUND: Radial head fractures are the most frequent fractures of the elbow joint in adults. For Mason type II fractures without concomitant injuries favorable results have been shown with operative and conservative management. There is insufficient evidence concerning elbow joint stability after conservative treatment compared to open reduction and internal fixation (ORIF). MATERIALS AND METHODS: All patients with isolated Mason type II (two part fracture displaced >2 mm and <5 mm) radial head fractures between 1 January 2003 and 1 April 2013 were retrospectively reviewed...
May 2, 2018: Der Unfallchirurg
https://www.readbyqxmd.com/read/29721450/multibody-modelling-of-ligamentous-and-bony-stabilizers-in-the-human-elbow
#6
REVIEW
Mara Terzini, Elisabetta Maria Zanetti, Alberto Luigi Audenino, Giovanni Putame, Laura Gastaldi, Stefano Pastorelli, Elisa Panero, Arman Sard, Cristina Bignardi
The elbow ligamentous and bony structures play essential roles in the joint stability. Nevertheless, the contribution of different structures to joint stability is not yet clear and a comprehensive experimental investigation into the ligament and osseous constraints changes in relation to joint motions would be uphill and somehow unattainable, due to the impossibility of obtaining all the possible configurations on the same specimen. Therefore, a predictive tool of the joint behavior after the loss of retentive structures would be helpful in designing reconstructive surgeries and in pre-operative planning...
October 2017: Muscles, Ligaments and Tendons Journal
https://www.readbyqxmd.com/read/29709352/radial-head-fracture-fixation-using-tripod-technique-with-headless-compression-screws
#7
REVIEW
Marc D Lipman, Trenton M Gause, Victor A Teran, A Bobby Chhabra, D Nicole Deal
Radial head and neck fractures are one of the most common elbow fractures, comprising 2% to 5% of all fractures, and 30% of elbow fractures. Although uncomplicated Mason type I fractures can be managed nonsurgically, Mason type II-IV fractures require additional intervention. Mason type II-III fractures with 3 or fewer fragments are typically treated with open reduction and internal fixation using 2 to 3 lag screws. Transverse radial neck involvement or axial instability with screw-only fixation has historically required the additional use of a mini fragment T-plate or locking proximal radius plate...
April 27, 2018: Journal of Hand Surgery
https://www.readbyqxmd.com/read/29686971/snapping-elbow-a-guide-to-diagnosis-and-treatment
#8
Jonathan Jetsmark Bjerre, Finn Elkjær Johannsen, Martin Rathcke, Michael Rindom Krogsgaard
AIM: To develop practical guidelines for diagnosis and treatment of the painful snapping elbow syndrome (SE). METHODS: Clinical studies were searched in the databases PubMed and Scopus for the phrases "SE", "snapping triceps", "snapping ulnar nerve" and "snapping annular ligament". A total of 36 relevant studies were identified. From these we extracted information about number of patients, diagnostic methods, patho-anatomical findings, treatments and outcomes...
April 18, 2018: World Journal of Orthopedics
https://www.readbyqxmd.com/read/29685388/the-contribution-of-the-posterolateral-capsule-to-elbow-joint-stability-a-cadaveric-biomechanical-investigation
#9
Dafydd S Edwards, Mohammed S Arshad, Toni Luokkala, Angela E Kedgley, Adam C Watts
BACKGROUND: Elbow posterolateral rotatory instability occurs after an injury to the lateral collateral ligament complex (LCLC) in isolation or in association with an osteochondral fracture of the posterolateral margin of the capitellum (Osborne-Cotterill lesion [OCL]). The contribution to elbow stability of the posterolateral capsule, attached to this lesion, is unknown. This study quantified the displacement of the radial head on simulated posterior draw with sectioning of the posterior capsule (a simulated OCL) or LCLC...
April 20, 2018: Journal of Shoulder and Elbow Surgery
https://www.readbyqxmd.com/read/29678397/varus-posteromedial-rotatory-instability-a-biomechanical-analysis-of-posterior-bundle-of-the-medial-ulnar-collateral-ligament-reconstruction
#10
Matthew J Gluck, Christina M Beck, Elan J Golan, Philip Nasser, Dave R Shukla, Michael R Hausman
BACKGROUND: Recently, there has been growing interest in the involvement of the posterior bundle of the medial ulnar collateral ligament (pMUCL) in varus posteromedial rotatory instability (PMRI). Varus PMRI has been observed clinically, but the degree of involvement of the pMUCL remains unclear. This study assessed the degree to which the pMUCL is involved in stabilizing the elbow and the feasibility of a pMUCL reconstruction to restore stability. METHODS: Movements simulating PMRI were performed in 8 cadaveric elbows...
April 17, 2018: Journal of Shoulder and Elbow Surgery
https://www.readbyqxmd.com/read/29664804/temporary-bridge-plate-stabilization-of-unstable-elbow-fractures-and-dislocations
#11
David Edelman, Asif M Ilyas
Unstable fracture-dislocations of the elbow, and in particular the "terrible triad" injury consisting of an elbow dislocation with a fracture of the radial head and coronoid, are complex injuries that can be plagued and complicated by persistent instability. Acute and chronic instability is a difficult problem and is best managed early by avoidance and restoration of stability. A number of treatment options have been proposed to manage acute postfixation instability of the elbow joint. Traditional stabilization options include immobilization with splinting or casting, cross-articular pinning, and external fixation (hinged or static), followed by early physical therapy...
April 11, 2018: Techniques in Hand & Upper Extremity Surgery
https://www.readbyqxmd.com/read/29618228/shoulder-and-elbow-injuries-in-soccer-goalkeepers-versus-field-players-in-the-national-collegiate-athletic-association-2009-2010-through-2013-2014
#12
Avi D Goodman, Christine Etzel, Jeremy E Raducha, Brett D Owens
OBJECTIVES: Examination of the incidence of shoulder and elbow injuries in the collegiate soccer player population is limited, as is comparison between goalkeepers and field players. We hypothesized that goalkeepers would have a higher incidence of shoulder and elbow injuries than field players. Furthermore, we sought to determine the incidence of shoulder and elbow injuries among National Collegiate Athletic Association (NCAA) soccer players, and to determine injury risk factors. METHODS: The NCAA Injury Surveillance Program database was analyzed for injuries to NCAA men's and women's soccer players during the 2009-2010 through 2013-2014 academic years...
April 19, 2018: Physician and Sportsmedicine
https://www.readbyqxmd.com/read/29606484/psychometric-properties-of-three-different-scales-for-subjective-evaluation-of-shoulder-pain-and-dysfunction-in-italian-patients-after-shoulder-surgery-for-anterior-instability
#13
Alberto Vascellari, Davide Venturin, Carlo Ramponi, Giulia Ben, Antonio Poser, Alex Rossi, Nicolò Coletti
BACKGROUND: The Italian versions of Shoulder Pain and Disability Index (SPADI), Simple Shoulder Test (SST), and University of California-Los Angeles (UCLA) Shoulder Rating Scale have been validated to assess shoulder dysfunction in patients treated for neck cancer. The present study investigated the psychometric properties of the Italian versions of the SPADI, SST, and UCLA in patients after shoulder surgery for anterior instability. MATERIALS AND METHODS: The study population included 98 patients...
March 29, 2018: Journal of Shoulder and Elbow Surgery
https://www.readbyqxmd.com/read/29573931/acromioclavicular-and-coracoclavicular-ligament-reconstruction-for-acromioclavicular-joint-instability-a-systematic-review-of-clinical-and-radiographic-outcomes
#14
REVIEW
Gilbert Moatshe, Bradley M Kruckeberg, Jorge Chahla, Jonathan A Godin, Mark E Cinque, Matthew T Provencher, Robert F LaPrade
PURPOSE: To perform a systematic review of the available literature on clinical and radiographic outcomes after surgical treatment for acromioclavicular (AC) joint instability. METHODS: A systematic review was performed according to PRISMA guidelines. Inclusion criteria were AC joint and coracoclavicular (CC) ligament reconstruction outcomes, English language, human studies, more than 10 patients in the study and a 2-year minimum follow-up. Exclusion criteria were animal studies, cadaveric studies, clinical studies without reported follow-up period or patient-reported outcomes, clinical studies of nonoperative treatment, AC reconstructions with concurrent lateral clavicle fracture, editorial articles, abstracts, presentations, reviews, case reports, and surveys...
March 21, 2018: Arthroscopy: the Journal of Arthroscopic & related Surgery
https://www.readbyqxmd.com/read/29557868/articular-contact-area-and-pressure-in-posteromedial-rotatory-instability-of-the-elbow
#15
Enrico Bellato, James S Fitzsimmons, Youngbok Kim, Daniel R Bachman, Lawrence J Berglund, Alexander W Hooke, Shawn W O'Driscoll
BACKGROUND: Joint incongruity in posteromedial rotatory instability (PMRI) has been theorized to determine early articular degenerative changes. Our hypothesis was that the articular contact area and contact pressure differ significantly between an intact elbow and an elbow affected by PMRI. METHODS: Seven cadaveric elbows were tested under gravity varus stress using a custom-made machine designed to simulate muscle loads and allow passive elbow flexion (0° to 90°)...
March 21, 2018: Journal of Bone and Joint Surgery. American Volume
https://www.readbyqxmd.com/read/29557861/clinical-outcomes-following-the-latarjet-procedure-in-contact-and-collision-athletes
#16
David M Privitera, Nathan J Sinz, Lindsay R Miller, Elana J Siegel, Muriel J Solberg, Stephen D Daniels, Laurence D Higgins
BACKGROUND: Few studies have evaluated the success of the Latarjet procedure for recurrent anterior glenohumeral instability in the contact or collision athlete. The purpose of this study was to evaluate the return-to-sport and functional results of the Latarjet procedure in this select group. METHODS: One hundred and nine consecutive contact or collision athletes (112 shoulders) treated with an open Latarjet procedure for recurrent anterior glenohumeral instability were retrospectively identified...
March 21, 2018: Journal of Bone and Joint Surgery. American Volume
https://www.readbyqxmd.com/read/29552473/arthroscopic-repair-of-the-lateral-ulnar-collateral-ligament-of-the-elbow-using-a-knotless-suture-anchor
#17
Eugene T Ek, Kemble K Wang
The lateral collateral ligament (LCL) complex of the elbow plays a crucial role in the stability of the elbow joint, especially to varus loads. Deficiency of particularly the lateral ulnar collateral component of the LCL can lead to chronic posterolateral rotatory instability, which can be functionally debilitating and can lead to a rapid onset of early degenerative arthritis. Commonly, in the setting of acute rupture of the LCL, the ligament is repaired using an open technique with suture anchor fixation to the lateral epicondyle insertion point...
February 2018: Arthroscopy Techniques
https://www.readbyqxmd.com/read/29540649/irreducible-elbow-fracture-and-dislocation-due-to-incarceration-of-the-medial-epicondyle-of-the-humerus-in-a-child
#18
Yoshihiko Satake, Yuji Tomori, Takuya Sawaizumi, Mitsuhiko Nanno, Norie Kodera, Shinro Takai
Medial epicondyle fractures of the humerus account for 11%-20% of all elbow injuries in children. Although intra-articular incarceration of the medial epicondyle occurs in 5%-18% of medial epicondyle fractures associated with an elbow dislocation, the mechanism of intrusion of the fracture fragment is unknown. We report a case of an irreducible elbow fracture and dislocation due to incarceration of the medial epicondyle fragment of the humerus, classified as a Watson-Jones type 3 fracture of the medial epicondyle, and present the mechanism of the intra-articular incarceration of the medial epicondyle fragment...
2018: Journal of Nippon Medical School, Nippon Ika Daigaku Zasshi
https://www.readbyqxmd.com/read/29505730/descriptive-epidemiology-of-the-moon-shoulder-instability-cohort
#19
Matthew J Kraeutler, Eric C McCarty, John W Belk, Brian R Wolf, Carolyn M Hettrich, Shannon F Ortiz, Jonathan T Bravman, Keith M Baumgarten, Julie Y Bishop, Matthew J Bollier, Robert H Brophy, James L Carey, James E Carpenter, Charlie L Cox, Brian T Feeley, John A Grant, Grant L Jones, John E Kuhn, John D Kelly, C Benjamin Ma, Robert G Marx, Bruce S Miller, Brian J Sennett, Matthew V Smith, Rick W Wright, Alan L Zhang
BACKGROUND: Shoulder instability is a common diagnosis among patients undergoing shoulder surgery. PURPOSE: To perform a descriptive analysis of patients undergoing surgery for shoulder instability through a large multicenter consortium. STUDY DESIGN: Case series; Level of evidence, 4. METHODS: All patients undergoing surgery for shoulder instability who were enrolled in the MOON Shoulder Instability Study were included...
April 2018: American Journal of Sports Medicine
https://www.readbyqxmd.com/read/29501223/total-shoulder-arthroplasty-in-patients-with-a-b2-glenoid-addressed-with-corrective-reaming
#20
Nathan D Orvets, Aaron M Chamberlain, Brendan M Patterson, Peter N Chalmers, Michelle Gosselin, Dane Salazar, Alexander W Aleem, Jay D Keener
BACKGROUND: This study describes the short-term functional and radiographic outcomes after total shoulder arthroplasty (TSA) in shoulders with a B2 glenoid deformity addressed with corrective reaming. METHODS: We conducted a retrospective series of consecutive patients who underwent TSA with a Walch B2 glenoid quantified by computed tomography scan. All glenoid deformities were addressed using partially corrective glenoid reaming. Radiographic and functional outcome measures, including scores on the visual analog scale for pain, American Shoulder and Elbow Standardized Shoulder Assessment, and Simple Shoulder Test were collected...
February 28, 2018: Journal of Shoulder and Elbow Surgery
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