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https://www.readbyqxmd.com/read/28295125/treatment-of-locked-posterior-shoulder-dislocation-with-bone-defect
#1
Yousuf M Khira, Adel M Salama
Locked posterior shoulder dislocation is an uncommon condition and is associated with a reverse Hill-Sachs lesion in 50% of cases. The condition is likely to occur in cases of violent trauma, seizures, or electric shock. Unrecognized dislocation with humeral head fracture affects joint function and humeral head vascularity and may lead to chronic instability, osteonecrosis, and osteoarthritis. A group of 12 patients, including 10 men and 2 women, with neglected locked posterior shoulder dislocation with a reverse Hill-Sachs lesion were treated with the modified McLaughlin technique...
March 14, 2017: Orthopedics
https://www.readbyqxmd.com/read/28224068/arthroscopic-remplissage-and-open-latarjet-procedure-for-the-treatment-of-anterior-glenohumeral-instability-with-severe-bipolar-bone-loss
#2
J Christoph Katthagen, Jack Anavian, Dimitri S Tahal, Peter J Millett
Bipolar bone loss in patients with anterior glenohumeral instability is challenging to treat. The goal of the treatment is to restore stability by ensuring that the humeral head remains within the glenoid vault. This can be achieved either with the combination of an arthroscopic Bankart procedure and remplissage (glenoid bone loss <25%), or with a Latarjet procedure (glenoid bone loss >25%). In cases with more severe bipolar bone loss of both the glenoid and the humeral head, the conventional approach has been to lengthen the articular arc of the glenoid and to ignore the Hill-Sachs lesion...
October 2016: Arthroscopy Techniques
https://www.readbyqxmd.com/read/28149732/arthroscopic-reduction-and-balloon-humeroplasty-in-the-treatment-of-acute-hill-sachs-lesions
#3
Drew Ratner, Jeffrey Backes, John M Tokish
Shoulder instability is often associated with an impaction fracture of the humeral head, commonly referred to as a "Hill-Sachs lesion." This lesion is present in both anterior and posterior instability. Forty percent to 90% of anterior shoulder dislocations have associated Hill-Sachs lesions, whereas 29% to 86% of posterior shoulder dislocations have reverse Hill-Sachs lesions. Both of these lesions can contribute to recurrent instability of the shoulder and require surgery to be treated. Currently, the most common procedures to address Hill-Sachs lesions are the remplissage procedure (transfer of the infraspinatus into the posterior humeral head defect), capsular shift, disimpaction technique, humeral head resurfacing, bone block transfer, or shoulder arthroplasty...
December 2016: Arthroscopy Techniques
https://www.readbyqxmd.com/read/28135130/clinical-outcome-of-arthroscopic-bankart-repair-combined-with-simultaneous-capsular-repair
#4
Shigeto Nakagawa, Ryo Iuchi, Tatsuo Mae, Naoko Mizuno, Yasuhiro Take
BACKGROUND: A capsular tear and humeral avulsion of the glenohumeral ligament lesion are not uncommon findings in association with a Bankart lesion. However, there have been few reports regarding the prevalence of such capsular lesions and the postoperative recurrence after capsular repair. Purpose/Hypothesis: This study investigated the prevalence of capsular lesions and clarified their influence on the postoperative recurrence of instability. In addition, factors were identified that were associated with the occurrence of capsular lesions and the postoperative recurrence of instability...
January 1, 2017: American Journal of Sports Medicine
https://www.readbyqxmd.com/read/28132742/hill-sachs-lesion-classification-under-arthroscopic-findings
#5
Kazuhiro Shibayama, Hiroshi Iwaso
BACKGROUND: The Hill-Sachs lesion (HSL) plays a role in recurrent glenohumeral joint instability. Currently, there are no studies based on the form characteristics of HSL. The purposes of this study were to report the HSL form characteristics and to determine whether they are correlated with number of prior subluxations and dislocations. METHODS: The study enrolled 134 consecutive patients diagnosed with anterior shoulder instability during an arthroscopic procedure...
January 26, 2017: Journal of Shoulder and Elbow Surgery
https://www.readbyqxmd.com/read/28131690/biomechanical-comparison-of-acute-hill-sachs-reduction-with-remplissage-to-treat-complex-anterior-instability
#6
Grant H Garcia, Ryan M Degen, Christopher N H Bui, Michelle H McGarry, Thay Q Lee, Joshua S Dines
BACKGROUND: Acute Hill-Sachs reduction represents a potential alternative method to remplissage for the treatment of an engaging Hill-Sachs lesion. This study biomechanically compared the stabilizing effects of an acute Hill-Sachs reduction technique and remplissage. METHODS: Six cadaveric shoulders were tested. For the acute Hill-Sachs lesion, a unique model was used to create a 30% defect, compressing the subchondral bone while preserving the articular surface...
January 25, 2017: Journal of Shoulder and Elbow Surgery
https://www.readbyqxmd.com/read/28028575/3d-mr-vs-3d-ct-of-the-shoulder-in-patients-with-glenohumeral-instability
#7
Laurence Stillwater, James Koenig, Bruce Maycher, Michael Davidson
OBJECTIVE: To determine whether 3D-MR osseous reformats of the shoulder are equivalent to 3D-CT osseous reformats in patients with glenohumeral instability. MATERIALS AND METHODS: Patients with glenohumeral instability, who were to be imaged with both CT and MRI, were prospectively selected. CT and MR were performed within 24 h of one another on 12 shoulders. Each MR study included an axial 3D isotropic VIBE sequence. The image data from the isotropic VIBE sequence were post-processed using subtraction and 3D software...
March 2017: Skeletal Radiology
https://www.readbyqxmd.com/read/28018084/recurrent-anterior-instability-of-the-shoulder-associated-with-coracoid-fracture-an-unusual-presentation
#8
Nikhil Verma, Deepak Chahar, Ankit Chawla, Ravi Sreenivasan, Amite Pankaj
Recurrent anterior shoulder instability following shoulder dislocation has an incidence as high as 68% among the younger population, however its association with coracoid fracture is extremely rare. Majority of coracoid fractures reported earlier have been shown to be associated with seizure disorder. We report a case of displaced coracoid fracture associated with recurrent anterior instability in a patient with no history of seizure disorder and its implications in causation as well as management are discussed...
October 2016: Journal of Clinical Orthopaedics and Trauma
https://www.readbyqxmd.com/read/28017544/context-specificity-in-causal-signaling-networks-revealed-by-phosphoprotein-profiling
#9
Steven M Hill, Nicole K Nesser, Katie Johnson-Camacho, Mara Jeffress, Aimee Johnson, Chris Boniface, Simon E F Spencer, Yiling Lu, Laura M Heiser, Yancey Lawrence, Nupur T Pande, James E Korkola, Joe W Gray, Gordon B Mills, Sach Mukherjee, Paul T Spellman
Signaling networks downstream of receptor tyrosine kinases are among the most extensively studied biological networks, but new approaches are needed to elucidate causal relationships between network components and understand how such relationships are influenced by biological context and disease. Here, we investigate the context specificity of signaling networks within a causal conceptual framework using reverse-phase protein array time-course assays and network analysis approaches. We focus on a well-defined set of signaling proteins profiled under inhibition with five kinase inhibitors in 32 contexts: four breast cancer cell lines (MCF7, UACC812, BT20, and BT549) under eight stimulus conditions...
January 25, 2017: Cell Systems
https://www.readbyqxmd.com/read/27989718/interobserver-and-intraobserver-variability-of-glenoid-track-measurements
#10
Adrian K Schneider, Gregory A Hoy, Eugene T Ek, Andrew H Rotstein, Julie Tate, David McD Taylor, Matthew C Evans
BACKGROUND: A method of assessing combined glenoid and humeral bone loss in traumatic shoulder instability with an associated treatment protocol was recently published. The aim of this study was to investigate its reliability and reproducibility. METHODS: Seventy-one patients with unilateral anteroinferior shoulder instability underwent computed tomography scans, from which 3-dimensional images were derived. En face views of both glenoid fossae and with 3 views of the humeral head were provided to 4 assessors to determine interobserver reliability...
December 15, 2016: Journal of Shoulder and Elbow Surgery
https://www.readbyqxmd.com/read/27904726/the-influence-of-arthroscopic-remplissage-for-engaging-hill-sachs-lesions-combined-with-bankart-repair-on-redislocation-and-shoulder-function-compared-with-bankart-repair-alone
#11
Sang-Hun Ko, Jae-Ryong Cha, Chae-Chil Lee, Il-Yeong Hwang, Chang-Gyu Choe, Min-Seok Kim
BACKGROUND: Recurrence of glenohumeral dislocation after arthroscopic Bankart repair can be associated with a large osseous defect in the posterosuperior part of the humeral head. Our hypothesis is that remplissage is more effective to prevent recurrence of glenohumeral instability without a severe motion deficit. METHODS: Engaging Hill-Sachs lesions were observed in 48 of 737 patients (6.5%). Twenty-four patients underwent arthroscopic Bankart repair combined with remplissage (group I) and the other 24 patients underwent arthroscopic Bankart repair alone (group II)...
December 2016: Clinics in Orthopedic Surgery
https://www.readbyqxmd.com/read/27900256/arthroscopic-remplissage-for-moderate-size-hill-sachs-lesion
#12
Thomas C Alexander, Clint Beicker, John M Tokish
Humeral bone loss has been shown to be a risk factor for failure after arthroscopic treatment of instability. We present the arthroscopic remplissage technique originally described by Koo and Burkhart et al. with a modification in the percutaneous anchor placement and suture tying that is reproducible and effective. We percutaneously place 2 suture anchors, which require no additional suture passing across the tissue, to create a double pulley technique, filling the defect with posterior capsule and rotator cuff...
October 2016: Arthroscopy Techniques
https://www.readbyqxmd.com/read/27896291/fresh-osteochondral-allograft-to-the-humeral-head-for-treatment-of-an-engaging-reverse-hill-sachs-lesion-technical-case-report-and-literature-review
#13
Loren O Black, Jia-Wei Kevin Ko, Samantha M Quilici, Dennis C Crawford
No abstract text is available yet for this article.
November 2016: Orthopaedic Journal of Sports Medicine
https://www.readbyqxmd.com/read/27876488/arthroscopic-subscapularis-augmentation-of-bankart-repair-in-chronic-anterior-shoulder-instability-with-bone-loss-less-than-25-and-capsular-deficiency-clinical-multicenter-study
#14
Marco Maiotti, Carlo Massoni, Raffaele Russo, Steffen Schroter, Antonio Zanini, Diana Bianchedi
PURPOSE: To assess the short-term outcomes of the arthroscopic subscapularis augmentation (ASA) technique, consisting of a tenodesis of the upper third of the subscapularis tendon and a Bankart repair, and its effect on shoulder external rotation. METHODS: Patients selected for this study were involved in contact sports, with a history of traumatic recurrent shoulder dislocations and a minimum of 2-year follow-up. Inclusion criteria were patients with glenoid bone loss (GBL) ranging from 5% to 25%, anterior capsular deficiency, and Hill-Sachs lesion who underwent ASA technique...
November 19, 2016: Arthroscopy: the Journal of Arthroscopic & related Surgery
https://www.readbyqxmd.com/read/27852909/clinical-validation-of-the-glenoid-track-concept-in-anterior-glenohumeral-instability
#15
James S Shaha, Jay B Cook, Douglas J Rowles, Craig R Bottoni, Steven H Shaha, John M Tokish
BACKGROUND: Glenoid and humeral bone loss are well-described risk factors for failure of arthroscopic shoulder stabilization. Recently, consideration of the interactions of these types of bone loss (bipolar bone loss) has been used to determine if a lesion is "on-track" or "off-track." The purpose of this study was to study the relationship of the glenoid track to the outcomes of arthroscopic Bankart reconstructions. METHODS: Over a 2-year period, 57 shoulders that were treated with an isolated, primary arthroscopic Bankart reconstruction performed at a single facility were included in this study...
November 16, 2016: Journal of Bone and Joint Surgery. American Volume
https://www.readbyqxmd.com/read/27836876/conquering-the-hill-sachs
#16
EDITORIAL
Bruce Reider
No abstract text is available yet for this article.
November 2016: American Journal of Sports Medicine
https://www.readbyqxmd.com/read/27829728/mr-arthrography-evaluation-in-patients-with-traumatic-anterior-shoulder-instability
#17
Luca Saba, Massimo De Filippo
INTRODUCTION: To evaluate retrospectively the diagnostic accuracy of MR arthrography, compared with arthroscopy, in research of the glenoid labrum tear in patients with a first episode of traumatic anterior shoulder instability (TUBS). MATERIAL AND METHODS: We retrospectively reviewed the MR arthrography shoulder images of 118 patients with a first episode of TUBS, between June 2014 and May 2016. RESULTS: The overall accuracy of MR arthrography compared with arthroscopy of the glenoid labrum lesions was 94%, sensitivity 93%, and specificity 96%...
March 2017: Journal of Orthopaedics
https://www.readbyqxmd.com/read/27815009/comparison-of-intra-articular-findings-and-clinical-features-between-patients-with-symptomatic-anterior-instability-after-recurrent-shoulder-subluxation-and-dislocation
#18
Sang-Jin Shin, Young-Won Ko, Yoon Sang Jeon, Juyeob Lee, Rag Gyu Kim, Hyungki Baek
PURPOSE: The purpose of this study was to compare the prevalence of concomitant intra-articular pathologies and clinical manifestations after arthroscopic stabilization between patients with symptomatic anterior instabilities following recurrent shoulder subluxations and dislocations. METHODS: Among patients who underwent arthroscopic stabilization, 28 patients who experienced shoulder subluxations (subluxation group, 26.7 ± 1.8 years) and 84 who had shoulder dislocations (dislocation group, 25...
March 2017: Arthroscopy: the Journal of Arthroscopic & related Surgery
https://www.readbyqxmd.com/read/27781987/balloon-humeroplasty-reconstruction-for-acute-hill-sachs-injury-a-technical-note
#19
F Jacquot, D Zbili, J-M Feron, A Sautet, L Doursounian, A-C Masquelet
Posterior Hill-Sachs humeral defects are present in 80% to 100% of cases of anterior shoulder dislocation and are a factor in recurrent instability. Several techniques have been described to fill the defect and avoid recurrence. We developed a percutaneous technique to fill the newly created defect in which a percutaneous balloon, analogous to the one used in vertebral kyphoplasty, is used to reduce the defect, which is then filled with calcium phosphate cement. One patient with an acute anterior dislocation of the shoulder with no previous history was treated using this method...
September 2016: Hand Surgery and Rehabilitation
https://www.readbyqxmd.com/read/27780512/a-six-months-old-neglected-anterior-shoulder-dislocation-managed-by-closed-reduction-and-latarjet-procedure
#20
Deepak Chaudhary, Deepak Joshi, Vineet Jain, Mukul Mohindra, Nitin Mehta
A neglected shoulder dislocation is a rarer entity and only few cases are reported in the literature. An anterior dislocation of the shoulder is rarely missed as patients present with limb in abduction and external rotation, an attitude very familiar to orthopaedic surgeon. Occasionally such cases are missed when they present with fracture of proximal humerus or when they receive treatment from unqualified practitioners who commonly practise in rural areas. Owing to very few reports there is paucity of literature and no standard treatment protocol exists for neglected anterior dislocation of the shoulder, though most such chronic cases are managed by open reduction...
October 1, 2016: Chinese Journal of Traumatology, Zhonghua Chuang Shang za Zhi
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