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https://www.readbyqxmd.com/read/29142869/temporomandibular-joint-synovial-chondromatosis-extending-to-the-temporal-bone-a-report-of-two-cases
#1
Dae-Hoon Kim, Eun Hee Lee, Eunae Sandra Cho, Jae-Young Kim, Kug-Jin Jeon, Jin Kim, Jong-Ki Huh
Synovial chondromatosis is a rare benign lesion originating from the synovial membrane. It presents as adhesive or non-adhesive intra-articular cartilaginous loose bodies. Although the causes of synovial chondromatosis have not been fully elucidated, inflammation, external injury, or excessive use of joints have been suggested as possible causes. Synovial chondromatosis has been reported to occur most frequently at large joints that bear weights, with a rare occurrence at the temporomandibular joint (TMJ). When synovial chondromatosis develops at TMJ, clinical symptoms, including pain, joint sounds, and mouth opening may common...
October 2017: Journal of the Korean Association of Oral and Maxillofacial Surgeons
https://www.readbyqxmd.com/read/29140162/eight-week-return-to-play-following-latarjet-shoulder-reconstruction-in-an-australian-football-player-a-case-report
#2
Myles Murphy, Marshall Stockden, Ken Withers, William Breidahl, Jonathon Charlesworth
INTRODUCTION: Anterior shoulder dislocations are a common injury in many sports resulting in extended time lost from play with an extremely high recurrence rate in young athletes playing high risk sport. Latarjet shoulder reconstruction is a common surgical procedure used to prevent subsequent dislocation with an expected rehabilitation timeframe of between four to six months before return to play. CASE DESCRIPTION: A 21-year-old male Australian football player experienced two left sided shoulder dislocations before undergoing a left Latarjet shoulder reconstruction...
November 15, 2017: Journal of Sport Rehabilitation
https://www.readbyqxmd.com/read/29138871/revision-shoulder-arthroplasty-with-a%C3%A2-reverse-shoulder-prosthesis-use-of-structural-allograft-for-glenoid-bone-loss
#3
S E Ozgur, R Sadeghpour, T R Norris
INTRODUCTION: Revision shoulder arthroplasty presents many unique and complex challenges when glenoid bone loss is involved. A distorted and medialized anatomy prevents the proper mechanics of the reverse prosthesis with regard to deltoid tension and ultimate function. This paper highlights one surgeon's experience using structural allograft for glenoid bone loss. PATIENTS AND METHODS: In all, 20 patients for a total of 24 surgeries with a medialized glenoid and/or substantial glenoid bone loss of grade IIB or higher were evaluated in this retrospective study...
November 14, 2017: Der Orthopäde
https://www.readbyqxmd.com/read/29137497/optimization-of-t2-weighted-imaging-for-shoulder-magnetic-resonance-arthrography-by-synthetic-magnetic-resonance-imaging
#4
Seung Hyun Lee, Young Han Lee, Seok Hahn, Jaemoon Yang, Ho-Taek Song, Jin-Suck Suh
Background Synthetic magnetic resonance imaging (MRI) allows reformatting of various synthetic images by adjustment of scanning parameters such as repetition time (TR) and echo time (TE). Optimized MR images can be reformatted from T1, T2, and proton density (PD) values to achieve maximum tissue contrast between joint fluid and adjacent soft tissue. Purpose To demonstrate the method for optimization of TR and TE by synthetic MRI and to validate the optimized images by comparison with conventional shoulder MR arthrography (MRA) images...
January 1, 2017: Acta Radiologica
https://www.readbyqxmd.com/read/29135662/reverse-shoulder-arthroplasty-for-the-treatment-of-rotator-cuff-deficiency-a-concise-follow-up-at-a-minimum-of-10-years-of-previous-reports
#5
Derek J Cuff, Derek R Pupello, Brandon G Santoni, Rachel E Clark, Mark A Frankle
We previously evaluated 94 patients (96 shoulders) who underwent reverse shoulder arthroplasty using a central compressive screw with 5.0-mm peripheral locking screws for baseplate fixation and a center of rotation lateral to the glenoid as treatment for end-stage rotator cuff deficiency. The purpose of this study was to report updated results at a minimum follow-up of 10 years. Forty patients (42 shoulders) were available for clinical follow-up. In the patients available for study, implant survivorship, with the end point being revision for any reason, was 90...
November 15, 2017: Journal of Bone and Joint Surgery. American Volume
https://www.readbyqxmd.com/read/29134236/-arthroscopic-soft-tissue-stabilization-of-posttraumatic-anterior-shoulder-instability-techniques-limitations-and-long-term-results
#6
REVIEW
B Ockert, N Biermann, W Nebelung, E Wiedemann
Arthroscopic soft tissue stabilization is a well-established and broadly accepted procedure to treat posttraumatic shoulder instability. Advantages in comparison to open stabilization procedures include improved visualization of the structural damage and a less invasive approach. Technical developments in recent years have led to further improvement of the arthroscopic technique for shoulder instability. This article presents a description of principles and new developments as it contains basic techniques including patient positioning, access portals, preparation of the glenoid bone, soft tissue handling and shuttle techniques...
November 13, 2017: Der Unfallchirurg
https://www.readbyqxmd.com/read/29127438/-bony-bankart-lesions-and-glenoid-defects-from-refixation-techniques-to-bony-augmentation
#7
REVIEW
V Rausch, M Königshausen, J Geßmann, T A Schildhauer, D Seybold
Rim defects of the anterior glenoid cavity are a main reason for residual shoulder instability after traumatic dislocation of the shoulder. These defects can be the result of a glenoid rim fracture or chronic glenoid erosion after repeated shoulder dislocations. Treatment concepts for these entities are entirely different. While in the acute fracture situation glenoid rim fractures can be treated operatively or non-operatively, augmentation of the anterior glenoid for stabilization of the shoulder should be considered if the defect exceeds 15-25% of the anterior glenoid...
November 10, 2017: Der Unfallchirurg
https://www.readbyqxmd.com/read/29124296/-diagnostics-and-treatment-of-posterior-shoulder-instability
#8
REVIEW
M Wellmann, M-F Pastor, T Smith
Posterior shoulder instability has a markedly lower incidence than anterior shoulder instability. It has a wide spectrum of clinical symptom manifestations and the overwhelming number of patients lack a traumatic primary dislocation. In addition to a detailed medical history, a specific clinical examination with the help of standardized provocation tests is essential for the diagnostics. For the detection of structural posterior capsule and labral lesions in cases of chronic courses, magnetic resonance imaging (MRI) should be used with an intra-articular contrast agent...
November 9, 2017: Der Unfallchirurg
https://www.readbyqxmd.com/read/29119123/indication-for-computed-tomography-scan-in-shoulder-instability-sensitivity-and-specificity-of-standard-radiographs-to-predict-bone-defects-after-traumatic-anterior-glenohumeral-instability
#9
Audrey Delage Royle, Frédéric Balg, Martin J Bouliane, Fanny Canet-Silvestri, Laurianne Garant-Saine, David M Sheps, Peter Lapner, Dominique M Rouleau
Background: Quantifying glenohumeral bone loss is key in preoperative surgical planning for a successful Bankart repair. Hypothesis: Simple radiographs can accurately measure bone defects in cases of recurrent shoulder instability. Study Design: Cohort study (diagnosis); Level of evidence, 2. Methods: A true anteroposterior (AP) view, alone and in combination with an axillary view, was used to evaluate the diagnostic properties of radiographs compared with computed tomography (CT) scan, the current gold standard, to predict significant bone defects in 70 patients...
October 2017: Orthopaedic Journal of Sports Medicine
https://www.readbyqxmd.com/read/29117482/zero-echo-time-imaging-of-the-shoulder-enhanced-osseous-detail-by-using-mr-imaging
#10
Ryan E Breighner, Yoshimi Endo, Gabrielle P Konin, Lawrence V Gulotta, Matthew F Koff, Hollis G Potter
Purpose To determine the intermodality agreement of morphologic grading and clinically relevant quantitative measurements between computed tomography (CT) and zero echo time (ZTE) magnetic resonance (MR) imaging of the shoulder. The primary objective was to demonstrate the clinical applicability of ZTE in osseous shoulder imaging. Materials and Methods Thirty-four patients undergoing standard-of-care (SOC) MR imaging with concomitant CT were enrolled in this institutional review board-approved study. ZTE images were acquired after SOC MR imaging...
November 8, 2017: Radiology
https://www.readbyqxmd.com/read/29114644/arthroscopic-reduction-with-endobutton-fixation-for-glenoid-fracture
#11
REVIEW
Ettore Taverna, Vincenzo Guarrella, Michael Thomas Freehill, Guido Garavaglia
Glenoid rim fractures, accompanied by acute glenohumeral dislocation or subluxation usually results in persistent instability. Traditionally open reduction and internal fixation has been recommended in displaced intra-articular glenoid fractures. However, open reduction is difficult, and it may not be possible to address the associated intra-articular soft-tissue injuries. A few reports of arthroscopic-assisted fixation of these fractures have been recently published. The most anatomic method for addressing an acute glenoid rim lesion is a reduction (either open or arthroscopic) and internal fixation...
June 2017: Joints
https://www.readbyqxmd.com/read/29114636/accuracy-of-coracoid-bone-graft-placement-open-versus-arthroscopic-latarjet
#12
Adriano Russo, Andrea Grasso, Annalisa Arrighi, Angela Pistorio, Luigi Molfetta
Purpose  The aim of this study was to compare the accuracy of the coracoid bone graft placement with the open Latarjet-Patte and arthroscopic Latarjet (arthro-Latarjet) procedures in the treatment of anterior instability of the shoulder. Methods  Forty-six patients affected by anterior shoulder instability were divided into two groups. In group A ( n  = 25), patients were operated by arthroscopic Latarjet (arthro-Latarjet) procedure and in group B ( n  = 21), patients were operated by open Latarjet-Patte procedure...
June 2017: Joints
https://www.readbyqxmd.com/read/29114335/imaging-of-the-unstable-shoulder
#13
Paolo Baudi, Manuela Rebuzzi, Giovanni Matino, Fabio Catani
Background: Unstable shoulder can occur in different clinical scenarios with a broad spectrum of symptoms and presentations: first-time (or recurrent) traumatic acute shoulder anterior dislocation or chronic anterior instability after repeated dislocations.Imaging in unstable shoulder is fundamental for choosing the right treatment preventing recurrence.The goal of imaging depends on clinical scenario and patient characteristics. Method: Careful selection and evaluation of the imaging procedures is therefore essential to identify, characterize and quantify the lesions...
2017: Open Orthopaedics Journal
https://www.readbyqxmd.com/read/29113176/stereolithographic-model-assisted-reconstruction-of-the-mandibular-condyle-with-a-vascularized-fibular-flap-following-hemimandibulectomy-evaluation-of-morphological-and-functional-outcomes
#14
Hitoshi Yoshimura, Shinpei Matsuda, Seigo Ohba, Yoshiki Minegishi, Kunihiro Nakai, Shigeharu Fujieda, Kazuo Sano
The vascularized fibular flap is one of the standard treatment choices for the reconstruction of the mandible; however, the consequences of condylar restoration have not previously been reported. The use of three-dimensional models allows for a more predictable reconstruction. The purpose of the present study was to assess the outcome of stereolithographic model-assisted reconstruction of the mandibular condyle with a vascularized fibular flap. A total of 5 patients underwent mandibular resection including the condyle and immediate reconstruction with a vascularized fibular flap...
November 2017: Oncology Letters
https://www.readbyqxmd.com/read/29106800/the-contribution-of-the-glenoid-labrum-to-glenohumeral-stability-under-physiological-joint-loading-using-finite-element-analysis
#15
Christian Klemt, Daniel Nolte, Grigorios Grigoriadis, Erica Di Federico, Peter Reilly, Anthony M J Bull
The labrum contributes to passive glenohumeral joint stability. Cadaveric studies have demonstrated that this has position and load dependency, which has not been quantified under physiological loads. This study aims to validate subject-specific finite element (FE) models against in vitro measurements of joint stability and to utilise the FE models to predict joint stability under physiological loads. The predicted stability values were within ± one standard deviation of experimental data and the FE models showed a reduction in stability of 10-15% with high, physiological, loads...
November 6, 2017: Computer Methods in Biomechanics and Biomedical Engineering
https://www.readbyqxmd.com/read/29102569/the-glenoid-labral-articular-teardrop-lesion-a-chondrolabral-injury-with-distinct-magnetic-resonance-imaging-findings
#16
Evan S Lederman, Stephen Flores, Christopher Stevens, Damien Richardson, Pamela Lund
PURPOSE: Evaluation and description of a pathognomonic lesion identified on magnetic resonance imaging (MRI) of a chondrolabral injury of the glenohumeral joint. METHODS: Patients were prospectively identified at the time of MRI by a characteristic teardrop appearance of a pedicled displaced chondrolabral flap in the axillary recess on coronal imaging and retrospectively reviewed. RESULTS: In a sample of 36 patients, there were 30 males (83%), and the average age was 27 years (14-75 years)...
November 1, 2017: Arthroscopy: the Journal of Arthroscopic & related Surgery
https://www.readbyqxmd.com/read/29102010/editorial-commentary-partial-shoulder-rotator-cuff-repair-may-the-force-couple-be-with-you
#17
EDITORIAL
Wesley M Nottage
Partial repair of a shoulder rotator cuff tear, in the face of an otherwise massive or "irreparable" tear, is an effective treatment for reducing patient pain and improving function. Partial repair restores balance to the force couple composed of the infraspinatus and teres minor posteriorly and the subscapularis anteriorly. A balanced force couple maintains centralization of the humeral head on the glenoid during shoulder range of motion and, in nonarthritic patients with massive or irreparable tears, is better than no repair at all...
November 2017: Arthroscopy: the Journal of Arthroscopic & related Surgery
https://www.readbyqxmd.com/read/29102007/editorial-commentary-is-shoulder-joint-preservation-an-endangered-species-let-s-save-the-glenoid
#18
EDITORIAL
Felix H Savoie
Joint preservation in young patients has always been the mission of arthroscopists worldwide since Bob Jackson visited Dr. Watanabe and brought the arthroscope to North America. In patients with shoulder glenohumeral arthritis, joint preservation is paramount and advanced arthroscopic techniques are of significant benefit. A recent publication shows 77% satisfactory outcomes, provides critical details on patient selection, and shows that a cohort of (younger) patients with shoulder osteoarthritis may do well after isolated glenoid resurfacing...
November 2017: Arthroscopy: the Journal of Arthroscopic & related Surgery
https://www.readbyqxmd.com/read/29101634/understanding-the-hill-sachs-lesion-in-its-role-in-patients-with-recurrent-anterior-shoulder-instability
#19
REVIEW
Jake A Fox, Anthony Sanchez, Tyler J Zajac, Matthew T Provencher
PURPOSE OF REVIEW: The purpose of this study is to provide an update to the orthopedic field in regard to treatment of the Hill-Sachs lesion and anterior shoulder instability. The review highlights the most current knowledge of epidemiology, clinical evaluation, and surgical methods used to treat Hill-Sachs lesions. It also details the relevant clinical and surgical findings that have been made throughout the literature in the past couple of years. RECENT FINDINGS: The most recent literature covering the Hill-Sachs lesion has focused on the relatively new and unexplored topic of the importance of concomitant injuries while treating a humeral head defect...
December 2017: Current Reviews in Musculoskeletal Medicine
https://www.readbyqxmd.com/read/29100831/treatment-of-posterior-dislocation-of-the-mandibular-condyle-with-the-double-mitek-mini-anchor-technique-a-case-report
#20
Jonathan B Albilia, Hillary Weisleder, Larry M Wolford
Posterior dislocation of the mandibular condyle is a rare disorder caused by trauma to the chin accompanied by damage to the external auditory canal. Treatment of posterior condylar dislocation (PCD) is directed at repositioning the condyle into the glenoid fossa, preventing recurrent dislocations, and maintaining patency of the ear canal. With early intervention, closed reduction with manual manipulation is successful but could be ineffective for chronic protracted PCD. This case report describes an elderly patient with a chronic protracted PCD resulting from a blow to the chin and in which manual reduction was unsuccessful...
October 10, 2017: Journal of Oral and Maxillofacial Surgery
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