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Shoulder subluxation

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https://www.readbyqxmd.com/read/28777219/anterior-glenohumeral-instability
#1
Adam Pickett, Steven Svoboda
Anterior shoulder dislocations, subluxations, and recurrent instability of the shoulder joint are common problems usually affecting a young active population. However, it can be a problem for patients up to the late decades in life and can lead to major shoulder arthropathy if left untreated or improperly treated. This article discusses the natural history, pathologic morphologic changes of the shoulder joint associated with anterior instability along with normal anatomic variants. We will also discuss current treatment recommendations and possible causes of the patient with recurrent instability despite prior stabilization procedures...
September 2017: Sports Medicine and Arthroscopy Review
https://www.readbyqxmd.com/read/28777216/posterior-shoulder-instability
#2
Alaina Brelin, Jonathan F Dickens
Posterior shoulder instability is a relatively uncommon condition, occurring in ∼10% of those with shoulder instability. Because of the rarity of the condition and the lack of knowledge in treatment, it is often misdiagnosed or patients experience a delay in diagnosis. Posterior instability typically affects athletes participating in contact or overhead sports and is usually the result of repetitive microtrauma or blunt force with the shoulder in the provocative position of flexion, adduction, and internal rotation, leading to recurrent subluxation events...
September 2017: Sports Medicine and Arthroscopy Review
https://www.readbyqxmd.com/read/28776109/clinical-and-radiological-results-7%C3%A2-years-after-copeland-shoulder-resurfacing-arthroplasty-in-patients-with-primary-glenohumeral-osteoarthritis-an-independent-multicentre-retrospective-study
#3
F U Verstraelen, L A Horta, M G M Schotanus, N P Kort, S K Samijo, E J P Jansen
PURPOSE: The aim of this multicentre cohort study was to evaluate the midterm outcomes and survival after cementless stemless resurfacing arthroplasty (CSRA) in a series of 33 shoulders in 27 patients with primary osteoarthritis. METHODS: Clinical outcome assessment included: Constant-Murley score (CMS); Simple Shoulder Test (SST); Disability of Arm, Shoulder, Hand (DASH); EuroQol-5D (EQ-5D) utility scores; Numerous Rating Scale (NRS) for pain. Radiographs were assessed by two independent observers for oversizing, radiolucency, glenohumeral subluxation, glenoid erosion and subsidence...
August 3, 2017: European Journal of Orthopaedic Surgery & Traumatology: Orthopédie Traumatologie
https://www.readbyqxmd.com/read/28770511/dynamic-brace-is-a-good-option-to-treat-first-anterior-shoulder-dislocation-in-season
#4
M Conti, R Garofalo, A Castagna, G Massazza, E Ceccarelli
PURPOSE: We evaluate the ability of in-season competitive athletes to return to competition after an anterior shoulder instability treated conservatively with a new dynamic brace combined with a specific rehabilitation program. METHODS: Twenty soccer players affected by traumatic anterior shoulder dislocation have been enrolled in the "Footballer In Season Fast Rehab" project during 2 consecutive football seasons. We excluded patients affected by rotator cuff tears and the bony defect over 25%...
August 2, 2017: Musculoskeletal Surgery
https://www.readbyqxmd.com/read/28756567/growth-plate-injury-at-the-base-of-the-coracoid-mri-features
#5
Erin FitzGerald Alaia, Zehava Sadka Rosenberg, Ignacio Rossi, Jonathan Zember, Johannes B Roedl, Lynne Pinkney, Lynne S Steinbach
PURPOSE: To assess the MRI features of growth plate injury at the base of the coracoid process. MATERIALS AND METHODS: Subjects were identified through retrospective search of our department imaging database and teaching files and the teaching files of two outside academic institutions. The coracoid base growth plate was examined with attention to widening, irregularity, abnormal signal intensity of the growth plate, and the presence of adjacent soft tissue edema...
July 29, 2017: Skeletal Radiology
https://www.readbyqxmd.com/read/28739298/guidelines-for-humeral-subluxation-cutoff-values-a-comparative-study-between-conventional-reoriented-and-three-dimensional-computed-tomography-scans-of-healthy-shoulders
#6
Matthijs Jacxsens, Michael R Karns, Heath B Henninger, Alex J Drew, Alexander Van Tongel, Lieven De Wilde
BACKGROUND: The humeral subluxation index (HSI) is frequently assessed on computed tomography (CT) scans in conditions of the shoulder characterized by humeral displacement. An arbitrarily set HSI cutoff value of 45% for anterior subluxation and 55% for posterior subluxation has been widely accepted. We studied whether mean values and thresholds of humeral subluxation, in relation to the glenoid and scapula, were influenced by different imaging modalities. METHODS: The HSIs referenced to the scapula (SHSI) and glenoid (GHSI) were compared between conventional CT scans, CT scans reoriented into the corresponding reference plane (ie, scapular plane for the SHSI and glenoid center plane for the GHSI), and 3-dimensional (3D) CT reconstructions of 120 healthy shoulders...
July 21, 2017: Journal of Shoulder and Elbow Surgery
https://www.readbyqxmd.com/read/28734714/arthroscopic-treatment-of-posterior-shoulder-instability-in-patients-with-and-without-glenoid-dysplasia-a-comparative-outcomes-analysis
#7
Joseph W Galvin, Douglas R Morte, Jason A Grassbaugh, Stephen A Parada, Samuel H Burns, Josef K Eichinger
BACKGROUND: The purpose of this study was to evaluate the influence of glenoid dysplasia on outcomes after isolated arthroscopic posterior labral repair in a young military population. METHODS: Thirty-seven male patients who underwent arthroscopic posterior labral repair for symptomatic posterior shoulder instability were evaluated at a mean duration of 3.1 years. A comparative analysis was performed for those with glenoid dysplasia and without dysplasia. Additional factors analyzed included military occupational specialty (MOS), preoperative mental health clinical encounters and mental health medication use, and radiographic characteristics (version, posterior humeral head subluxation, and posterior capsular area) on a preoperative standard shoulder magnetic resonance arthrogram...
July 19, 2017: Journal of Shoulder and Elbow Surgery
https://www.readbyqxmd.com/read/28721447/direct-repair-of-the-sagittal-band-for-extensor-tendon-subluxation-caused-by-finger-flicking
#8
In Tae Hong, Chi Hoon Oh, Young Suk Sim, Soo Hong Han
PURPOSE: For patients with metacarpophalangeal (MCP) extensor tendon subluxation caused by finger flicking injury, we performed an extensor tendon realignment and direct repair technique. The purpose of this study was to evaluate the clinical outcome after direct repair of the sagittal band in patients with MCP extensor tendon subluxation caused by finger flicking injury and to introduce the repair technique. METHODS: A total of 26 patients with a mean age of 39...
July 18, 2017: Der Orthopäde
https://www.readbyqxmd.com/read/28706825/treatment-of-irreducible-traumatic-anterior-shoulder-dislocation-caused-by-subscapularis-tendon-interposition
#9
Maysara Abdelhalim Bayoumy, Hatem G Said, Ayman Farouk Abdelkawi, Tarek N Fetih
Irreducible shoulder dislocation is an uncommon event. When it does occur, blocks to reduction can include bone, labrum, rotator cuff musculature, or tendon. Concomitant rotator cuff tear at the time of initial dislocation is not an exclusive complication of anterior shoulder dislocation in the older population. Indeed, rotator cuff tear should not be excluded based solely on the patient's age. Rotator cuff interposition is not an uncommon complication after anterior dislocation of the shoulder. It should be suspected when there is incongruency of the joint and persistent subluxation on postreduction radiographs...
June 2017: Arthroscopy Techniques
https://www.readbyqxmd.com/read/28702386/disorders-of-the-long-head-of-the-biceps-tenotomy-versus-tenodesis
#10
Fabiano Rebouças Ribeiro, André Petry Sandoval Ursolino, Vinicius Ferreira Lima Ramos, Fernando Hovaguim Takesian, Antonio Carlos Tenor Júnior, Miguel Pereira da Costa
Disorders of the long head of biceps tendon are common in clinical practice. Their causes could be degenerative, inflammatory, instability (subluxation or luxation) or traumatic. They are generally associated to other diseases of the shoulder, mainly rotator cuff injuries. Currently, there is controversy in the literature regarding the indications for surgical treatment and the choice of the best technique for each case, due to the possibility of esthetic deformity, loss of muscle strength, and residual pain...
May 2017: Revista Brasileira de Ortopedia
https://www.readbyqxmd.com/read/28684231/mid-term-to-long-term-outcome-of-the-open-bankart-repair-for-recurrent-traumatic-anterior-dislocation-of-the-shoulder
#11
Robert J Neviaser, Michael T Benke, Andrew S Neviaser
BACKGROUND: The purpose of this study was to assess the long-term outcome of the open Bankart repair for traumatic, recurrent anterior dislocation of the shoulder by evaluation of recurrence, range of motion, return to sports, arthritis, patient satisfaction, and outcome measures. METHODS: Of 162 patients, 127 patients (mean age, 31 years) were evaluated at a mean follow-up of 17.1 years (5-24) after undergoing an open Bankart repair using suture anchors. An independent orthopedic surgeon obtained a history and examined each for range of motion...
July 3, 2017: Journal of Shoulder and Elbow Surgery
https://www.readbyqxmd.com/read/28681354/does-postoperative-glenoid-retroversion-affect-the-2-year-clinical-and-radiographic-outcomes-for-total-shoulder-arthroplasty
#12
Benjamin C Service, Jason E Hsu, Jeremy S Somerson, Stacy M Russ, Frederick A Matsen
BACKGROUND: While glenoid retroversion and posterior humeral head decentering are common preoperative features of severely arthritic glenohumeral joints, the relationship of postoperative glenoid component retroversion to the clinical results of total shoulder arthroplasty (TSA) is unclear. Studies have indicated concern for inferior outcomes when glenoid components are inserted in 15° or more retroversion. QUESTIONS/PURPOSES: In a population of patients undergoing TSA in whom no specific efforts were made to change the version of the glenoid, we asked whether at 2 years after surgery patients having glenoid components implanted in 15° or greater retroversion had (1) less improvement in the Simple Shoulder Test (SST) score and lower SST scores; (2) higher percentages of central peg lucency, higher Lazarus radiolucency grades, higher mean percentages of posterior decentering, and more frequent central peg perforation; or (3) a greater percentage having revision for glenoid component failure compared with patients with glenoid components implanted in less than 15° retroversion...
July 5, 2017: Clinical Orthopaedics and related Research
https://www.readbyqxmd.com/read/28659056/the-influence-of-bicipital-groove-morphology-on-the-stability-of-the-long-head-of-the-biceps-tendon
#13
Jae Chul Yoo, Geethan Iyyampillai, Dongjun Park, Kyoung-Hwan Koh
PURPOSE: We aimed to evaluate the influence of the bony morphology of the bicipital groove on the stability of the long head of the biceps tendon (LHBT). METHODS: Among the patients who underwent magnetic resonance imaging of the shoulder at our outpatient clinic in 2012, those aged >40 years were included. After excluding cases with complete tear or unclear positioning of the biceps tendon, 464 shoulders were analyzed according to the position of the LHBT with respect to the bicipital groove...
May 2017: Journal of Orthopaedic Surgery
https://www.readbyqxmd.com/read/28657778/successful-return-to-sport-after-arthroscopic-shoulder-stabilization-versus-nonoperative-management-in-contact-athletes-with-anterior-shoulder-instability-a-prospective-multicenter-study
#14
Jonathan F Dickens, John-Paul Rue, Kenneth L Cameron, John M Tokish, Karen Y Peck, C Dain Allred, Steven J Svoboda, Robert Sullivan, Kelly G Kilcoyne, Brett D Owens
BACKGROUND: The debate continues regarding the optimal treatment of intercollegiate contact athletes with in-season anterior shoulder instability. PURPOSE: To examine return to sport and recurrent instability in the season after the index in-season anterior instability event. STUDY DESIGN: Cohort study; Level of evidence, 2. METHODS: Forty-five contact intercollegiate athletes treated nonoperatively or with arthroscopic stabilization were prospectively followed in a multicenter observational study to evaluate return to play (RTP) and recurrent instability in the season after an initial in-season anterior glenohumeral instability event...
June 1, 2017: American Journal of Sports Medicine
https://www.readbyqxmd.com/read/28632288/all-arthroscopic-superior-shoulder-capsule-reconstruction-with-partial-rotator-cuff-repair
#15
E Grant Sutter, Jonathan A Godin, Grant E Garrigues
Massive irreparable rotator cuff tears are difficult to treat. Although several treatment options exist, none provides superior long-term results. There is no consensus on optimal surgical technique. Superior capsular reconstruction is an operative treatment option aimed at restoring native biomechanics of the glenohumeral joint by providing a restraint to superior subluxation. Partial rotator cuff repair for massive tears has also been shown to improve shoulder kinematics and can be performed in conjunction with superior capsule reconstruction...
July 1, 2017: Orthopedics
https://www.readbyqxmd.com/read/28628623/use-of-the-deka-arm-for-amputees-with-brachial-plexus-injury-a-case-series
#16
Linda Resnik, Christopher Fantini, Gail Latlief, Samuel Phillips, Nicole Sasson, Eve Sepulveda
OBJECTIVE: Patients with upper limb amputation and brachial plexus injuries have high rates of prosthesis rejection. Study purpose is to describe experiences of subjects with transhumeral amputation and brachial plexus injury, who were fit with, and trained to use, a DEKA Arm. METHODS: This was a mixed-methods study utilizing qualitative (e.g. interview, survey) and quantitative data (e.g. self-report and performance measures). Subject 1, a current prosthesis user, had a shoulder arthrodesis...
2017: PloS One
https://www.readbyqxmd.com/read/28545718/the-effect-of-glenoid-component-version-and-humeral-polyethylene-liner-rotation-on-subluxation-and-impingement-in-reverse-shoulder-arthroplasty
#17
Vijay N Permeswaran, Andrea Caceres, Jessica E Goetz, Donald D Anderson, Carolyn M Hettrich
BACKGROUND: A previously validated finite element modeling approach was used to determine how changes in glenoid component version and polyethylene liner rotation within the humeral component affect the arm abduction angle at which impingement between the inferior glenoid and the polyethylene liner occurs as well as the amount of subluxation generated by that impingement. MATERIALS AND METHODS: Five glenoid component versions (5° anteversion; neutral; 5°, 10°, and 20° retroversion) and 7 polyethylene liner rotations (20° and 10° anterior; neutral; 10°, 20°, 30°, and 40° posterior) were considered, resulting in 35 different clinically representative models...
May 22, 2017: Journal of Shoulder and Elbow Surgery
https://www.readbyqxmd.com/read/28528385/instability-of-the-long-head-of-the-biceps-tendon-in-patients-with-rotator-cuff-tear-evaluation-on-magnetic-resonance-arthrography-of-the-shoulder-with-arthroscopic-correlation
#18
Yusuhn Kang, Joon Woo Lee, Joong Mo Ahn, Eugene Lee, Heung Sik Kang
OBJECTIVES: To evaluate the diagnostic value of MR arthrography (MRA) in diagnosing instability of the LHBT in patients with rotator cuff tendon tear. MATERIALS AND METHODS: The MR arthrograms of 101 patients were retrospectively reviewed and correlated with arthroscopic findings as the standard reference. Images were evaluated for (1) the integrity of the LHBT, (2) the position of the LHBT (subluxation/dislocation on axial images, inferior displacement on oblique sagittal image) and (3) the integrity of the biceps pulley (SGHL, supraspinatus and subscapularis tendon adjacent to the rotator interval)...
May 20, 2017: Skeletal Radiology
https://www.readbyqxmd.com/read/28483434/posterior-glenoid-bone-grafting-in-total-shoulder-arthroplasty-for-osteoarthritis-with-severe-posterior-glenoid-wear
#19
Gregory P Nicholson, Gregory L Cvetanovich, Allison J Rao, Patrick O'Donnell
BACKGROUND: Total shoulder arthroplasty (TSA) in cases with posterior wear can be addressed by eccentric reaming of the anterior glenoid or by augmenting the posterior glenoid with bone grafting or augmented glenoid implants. We report the results of TSA with posterior glenoid bone grafting (PGBG) with humeral head autograft in patients with shoulder osteoarthritis and severe posterior glenoid wear. METHODS: A retrospective review of cases from 2004 to 2014 revealed 34 patients...
May 5, 2017: Journal of Shoulder and Elbow Surgery
https://www.readbyqxmd.com/read/28476538/the-central-slip-fracture-results-of-operative-treatment-of-volar-fracture-subluxations-dislocations-of-the-proximal-interphalangeal-joint
#20
Zachary I Meyer, Charles A Goldfarb, Ryan P Calfee, Lindley B Wall
PURPOSE: Fractures of the base of the middle phalanx are particularly challenging. Dorsal fracture-subluxations/dislocations of the proximal interphalangeal (PIP) joint are relatively common, but the volar fracture-subluxation/dislocation, the so-called "central slip fracture," is quite rare. The current study presents our experience with surgically treated patients with central slip fracture subluxation/dislocation with a minimum of 1 year follow-up. We hypothesized that the majority of patients with a central slip fracture-subluxation/dislocation have poor outcomes...
July 2017: Journal of Hand Surgery
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