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https://www.readbyqxmd.com/read/29140162/eight-week-return-to-play-following-latarjet-shoulder-reconstruction-in-an-australian-football-player-a-case-report
#1
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/29137497/optimization-of-t2-weighted-imaging-for-shoulder-magnetic-resonance-arthrography-by-synthetic-magnetic-resonance-imaging
#2
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/29135288/selective-debridement-with-labral-preservation-using-narrow-indications-in-the-hip-minimum-5-year-outcomes-with-a-matched-pair-labral-repair-control-group
#3
Austin W Chen, Leslie C Yuen, Victor Ortiz-Declet, Jody Litrenta, David R Maldonado, Benjamin G Domb
BACKGROUND: Arthroscopic labral debridement in the hip can be an effective treatment for labral tears but has demonstrated inferior outcomes compared with labral repair. Thus, the role for labral debridement has become unclear. Hypothesis/Purpose: The purpose was to evaluate the outcomes of a selective debridement with labral preservation (SDLP) group with a minimum 5-year follow-up. It was hypothesized that, with narrow indications, SDLP would produce statistically improved patient-reported outcome (PRO) scores, comparable with those of a matched-pair labral repair control group...
November 1, 2017: American Journal of Sports Medicine
https://www.readbyqxmd.com/read/29124296/-diagnostics-and-treatment-of-posterior-shoulder-instability
#4
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/29114335/imaging-of-the-unstable-shoulder
#5
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/29106800/the-contribution-of-the-glenoid-labrum-to-glenohumeral-stability-under-physiological-joint-loading-using-finite-element-analysis
#6
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/29100080/validity-of-radial-magnetic-resonance-imaging-to-determine-the-extent-of-bankart-lesions
#7
Akiko Ogura, Toru Morihara, Hiroyoshi Fujiwara, Yuji Arai, Yoshikazu Kida, Hirotoshi Ito, Ryuhei Furukawa, Yukichi Kabuto, Tsuyoshi Sukenari, Toshikazu Kubo
PURPOSE: The objectives were to compare conventional oblique coronal and axial images with radial images to determine the capacities of these modalities for visualizing sites in the glenoid labrum. MATERIALS AND METHODS: The glenoid labra of 45 patients without a labrum injury and 30 patients with Bankart lesions were examined by magnetic resonance imaging using three different sections. RESULTS: The radial images permitted a greater range of assessment of the morphology of the glenoid labrum than the conventional images...
October 20, 2017: Clinical Imaging
https://www.readbyqxmd.com/read/29085847/the-effect-of-capsulectomy-on-hip-joint-biomechanics
#8
Neil K Bakshi, Jen L Bayer, Erin M R Bigelow, Omar F Jameel, Jon K Sekiya
BACKGROUND: Capsulectomy is performed during hip arthroscopic surgery in young adult patients with hip pain to improve intraoperative visualization. The stability of the hip joint after anterior capsulectomy is relatively unknown. PURPOSE: To evaluate anterior hip stability in capsular sectioned states with a labral injury to test whether the load required for anterior translation would decrease with greater capsular injuries. STUDY DESIGN: Controlled laboratory study...
October 2017: Orthopaedic Journal of Sports Medicine
https://www.readbyqxmd.com/read/29081850/obstacles-to-reduction-in-infantile-developmental-dysplasia-of-the-hip
#9
K Studer, N Williams, P Studer, M Baker, A Glynn, B K Foster, P J Cundy
PURPOSE: Identification of anatomical structures that block -reduction in developmental dysplasia of the hip (DDH) is -important for the management of this challenging condition. Obstacles to reduction seen on arthrogram are well-known. However, despite the increasing use of MRI in the assessment of adequacy of reduction in DDH, the interpretation of MRI patho-anatomy is ill-defined with a lack of relevant literature to guide clinicians. METHOD: This is a retrospective analysis of the MRI of patients with DDH treated by closed reduction over a five-year period (between 2009 and 2014)...
October 1, 2017: Journal of Children's Orthopaedics
https://www.readbyqxmd.com/read/29027115/correlation-between-mri-and-hip-arthroscopy-in-children-with-legg-calve-perthes-disease
#10
V Tiwari, S Gamanagatti, R Mittal, H Nag, S A Khan
BACKGROUND: Most of the information available about Legg-Calve-Perthes disease (LCPD) at present is gained through imaging modalities including plain radiographs and magnetic resonance imaging (MRI). But the accuracy of MRI in this disease and its predictive value to reveal various intra-articular pathologies is not known. We correlated the findings of MRI with those seen on hip arthroscopy in children with active stage of LCPD. METHODS: We conducted a prospective observational study in which MRI findings were correlated with corresponding findings on hip arthroscopy in a cohort of 25 patients of active LCPD below 12 years of age...
October 12, 2017: Musculoskeletal Surgery
https://www.readbyqxmd.com/read/29018890/-magnetic-resonance-imaging-findings-after-shoulder-surgery-what-the-radiologist-needs-to-know
#11
REVIEW
U L Fahlenkamp, C Gerhardt, K-G A Hermann
Even primary diagnostic evaluation of the shoulder is a challenge for radiologists. Many imaging findings that definitely indicate abnormal findings in the untreated shoulder should be evaluated carefully in postoperative patients. Artifacts caused by implants or metal abrasion pose considerable problems in postoperative magnetic resonance imaging (MRI). Classic approaches to minimizing artifacts caused by foreign bodies include using turbo spin echo sequences, increasing bandwidth, and reducing voxel size...
November 2017: Der Radiologe
https://www.readbyqxmd.com/read/29017383/acetabular-labrum-of-hip-joint-in-osteoarthritis-a-qualitative-original-study-and-short-review-of-the-literature
#12
S Kapetanakis, A Dermon, N Gkantsinikoudis, V Kommata, P Soukakos, C R Dermon
PURPOSE: Histological architecture of normal acetabular labrum regarding free nerve endings (FNEs) and mechanoreceptors (MRs) has been satisfactorily described in the literature. However, the presence of FNEs and MRs in acetabular labrum of hip joint has been analyzed only once in patients with osteoarthritis (OA). Aim of this article is to report histological distribution pattern of FNEs and MRs in acetabular labrum of patients with severe OA, at the same time conducting a comparison with normal acetabular labrum described in the literature...
September 2017: Journal of Orthopaedic Surgery
https://www.readbyqxmd.com/read/28986631/comparative-reliability-and-diagnostic-performance-of-conventional-3t-magnetic-resonance-imaging-and-1-5t-magnetic-resonance-arthrography-for-the-evaluation-of-internal-derangement-of-the-hip
#13
A Chopra, A J Grainger, B Dube, R Evans, R Hodgson, J Conroy, D Macdonald, Philip Robinson
OBJECTIVE: To compare the diagnostic accuracy of conventional 3T MRI against 1.5T MR arthrography (MRA) in patients with clinical femoroacetabular impingement (FAI). METHODS: Sixty-eight consecutive patients with clinical FAI underwent both 1.5T MRA and 3T MRI. Imaging was prospectively analysed by two musculoskeletal radiologists, blinded to patient outcomes and scored for internal derangement including labral and cartilage abnormality. Interobserver variation was assessed by kappa analysis...
October 6, 2017: European Radiology
https://www.readbyqxmd.com/read/28979603/controversies-in-the-surgical-management-of-shoulder-instability-associated-soft-tissue-procedures
#14
Santos Moros Marco, José Luis Ávila Lafuente, Miguel Angel Ruiz Ibán, Jorge Diaz Heredia
BACKGROUND: The glenohumeral joint is a ball-and-socket joint that is inherently unstable and thus, susceptible to dislocation. The traditional and most common anatomic finding is the Bankart lesion (anterior-inferior capsule labral complex avulsion), but there is a wide variety of anatomic alterations that can cause shoulder instability or may be present as a concomitant injury or in combination, including bone loss (glenoid or humeral head), complex capsule-labral tears, rotator cuff tears, Kim´s lesions (injuries to the posterior-inferior labrum) and rotator interval pathology...
2017: Open Orthopaedics Journal
https://www.readbyqxmd.com/read/28979598/evaluation-and-management-of-failed-shoulder-instability-surgery
#15
António Cartucho, Nuno Moura, Marco Sarmento
BACKGROUND: Failed shoulder instability surgery is mostly considered to be the recurrence of shoulder dislocation but subluxation, painful or non-reliable shoulder are also reasons for patient dissatisfaction and should be considered in the notion. METHODS: The authors performed a revision of the literature and online contents on evaluation and management of failed shoulder instability surgery. RESULTS: When we look at the reasons for failure of shoulder instability surgery we point the finger at poor patient selection, technical error and an additional traumatic event...
2017: Open Orthopaedics Journal
https://www.readbyqxmd.com/read/28979596/treatment-of-the-posterior-unstable-shoulder
#16
Eduardo Sánchez Alepuz, Jaime Alonso Pérez-Barquero, Nadia Jover Jorge, Francisco Lucas García, Vicente Carratalá Baixauli
BACKGROUND: It is estimated that approximately 5% of glenohumeral instabilities are posterior. There are a number of controversies regarding therapeutic approaches for these patients. METHODS: We analyse the main surgery alternatives for the treatment of the posterior shoulder instability. We did a research of the publications related with posterior glenohumeral instability. RESULTS: There are conservative and surgical treatment options. Conservative treatment has positive results in most patients, with around 65 to 80% of cases showing recurrent posterior dislocation...
2017: Open Orthopaedics Journal
https://www.readbyqxmd.com/read/28975132/acute-versus-delayed-magnetic-resonance-imaging-and-associated-abnormalities-in-traumatic-anterior-shoulder-dislocations
#17
Nathan D Orvets, Robert L Parisien, Emily J Curry, Justin S Chung, Josef K Eichinger, Akira M Murakami, Xinning Li
BACKGROUND: The delayed management of patients with shoulder instability may increase the prevalence and severity of concomitant intra-articular shoulder injuries resulting from persistent subluxations and dislocations. HYPOTHESIS: Patients with a longer delay from the initial dislocation event to undergoing magnetic resonance imaging (MRI) or magnetic resonance arthrography will demonstrate more subluxations or dislocations and a greater amount of intra-articular shoulder damage...
September 2017: Orthopaedic Journal of Sports Medicine
https://www.readbyqxmd.com/read/28974332/recurrent-labral-tearing-on-magnetic-resonance-imaging-is-not-predictive-of-diminished-participation-among-national-football-league-athletes
#18
Derrick M Knapik, Jeremy J Gebhart, Joseph Sheehan, Joseph E Tanenbaum, Michael J Salata, James E Voos
PURPOSE: To investigate the prevalence of shoulder labral repair and utility of magnetic resonance imaging (MRI) in determining the risks of recurrent labral tearing and impact on future participation in the National Football League (NFL). METHODS: Athletes invited to the NFL Combine between 2012 and 2015 were retrospectively reviewed. Athletes with a history of labral repair and MRI of the operative shoulder at the Combine were included in the study for further analysis, excluding athletes without a history of labral repair, labral repair without MRI at the Combine, additional procedure to the operative shoulder, or athletes still undergoing rehabilitation at the time of the Combine after labral repair...
September 30, 2017: Arthroscopy: the Journal of Arthroscopic & related Surgery
https://www.readbyqxmd.com/read/28970986/tenosuspension-of-the-reflected-head-of-the-rectus-femoris-in-hip-arthroscopy-description-of-a-portal-and-a-surgical-maneuver
#19
Bernardo Aguilera-Bohorquez, Eduardo Gil, John Fonseca, Miguel Fernandez, Miguel Sánchez
Arthroscopy is a surgical technique useful in the treatment of intra- and extra-articular hip pathologies, including femoroacetabular impingement (FAI). In the arthroscopic treatment of pincer-type FAI, tendon interposition of the reflected head of the rectus femoris frequently hinders acetabular edge resection in the anterior-superior region (acetabuloplasty) and labrum repositioning, even causing tendon injury during the surgical procedure. Many surgeons do not give importance to the reflected head of the rectus femoris, and during the procedure they try to avoid it, giving 30° of flexion to the hip...
August 2017: Arthroscopy Techniques
https://www.readbyqxmd.com/read/28970982/concomitant-reverse-hill-sachs-lesion-and-posterior-humeral-avulsion-of-the-glenohumeral-ligament-treatment-with-fresh-talus-osteochondral-allograft-and-arthroscopic-posterior-humeral-avulsion-of-the-glenohumeral-ligament-and-labrum-repair
#20
Justin J Mitchell, Alexander R Vap, George Sanchez, Daniel J Liechti, Jorge Chahla, Gilbert Moatshe, Márcio B Ferrari, Matthew T Provencher
Chronic posterior glenohumeral joint instability can be a challenging clinical entity for patients and surgeons alike. In the setting of a posterior dislocation, a large anterior humeral impaction injury (reverse Hill-Sachs [HS]) may occur, leading to engagement of the humerus with the posterior glenoid bone, especially during internal rotation of the joint. A reverse HS is especially debilitating because of the significant portion of affected humeral head cartilage, and is made worse in the setting of ligamentous disruption such as a posterior humeral avulsion of the glenohumeral ligament (HAGL) lesions...
August 2017: Arthroscopy Techniques
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