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https://www.readbyqxmd.com/read/28624240/bipolar-bone-loss-in-patients-with-anterior-shoulder-dislocation-a-comparison-of-adolescents-versus-adult-patients
#1
Brian C Lau, Devin Conway, Patrick F Curran, Brian T Feeley, Nirav K Pandya
PURPOSE: To compare bipolar bone loss by evaluating the degree of glenoid bone loss, Hill-Sachs lesion size, and glenoid track in adolescents and adults with shoulder dislocations. METHODS: We performed a retrospective review between 2012 and 2016 of surgical and nonsurgical patients with a history of anterior shoulder dislocations (primary or recurrent) who underwent magnetic resonance imaging of the affected shoulder. The exclusion criteria included multidirectional instability, prior surgery, and posterior dislocation...
June 14, 2017: Arthroscopy: the Journal of Arthroscopic & related Surgery
https://www.readbyqxmd.com/read/28607788/a-case-of-fracture-redislocation-of-the-hip-caused-by-a-depressed-fracture-of-the-femoral-head-similar-to-a-hill-sachs-lesion
#2
Yoshihiko Okudera, Hiroaki Kijima, Shin Yamada, Natsuo Konishi, Hitoshi Kubota, Hiroshi Tazawa, Takayuki Tani, Norio Suzuki, Keiji Kamo, Ken Sasaki, Tetsuya Kawano, Yosuke Iwamoto, Naohisa Miyakoshi, Yoichi Shimada
The present case shows a case of fracture-redislocation of the hip caused by a depressed fracture of the femoral head similar to a Hill-Sachs lesion. A 59-year-old man fell from a roof and his left hip joint was dislocated posteriorly. He was admitted to a nearby hospital, and he was referred to our hospital more than 24 hours after injury. Computed tomography (CT) suggested a bone chip from the posterior wall of the acetabulum roof and a depressed femoral head that cut into the posterior margin of the acetabulum roof...
2017: Case Reports in Orthopedics
https://www.readbyqxmd.com/read/28588656/measurement-of-combined-glenoid-and-hill-sachs-lesions-in-anterior-shoulder-instability
#3
Dominique M Rouleau, Laurianne Garant-Saine, Fanny Canet, Emilie Sandman, Jérémie Ménard, Julien Clément
BACKGROUND: Recurrent glenohumeral anterior instability (RGAI) frequently induces combined glenoid and Hill-Sachs bone lesions and is a risk factor for soft tissue repair failure. This cohort study describes a simple preoperative quantification method for bone loss, the Clock method, the first that combines glenoid and humeral lesions. METHODS: Computed tomography scans of 34 shoulders with RGAI were twice reviewed by three independent observers, who measured bone lesions using the new Clock method and existing validated methods...
July 2017: Shoulder & Elbow
https://www.readbyqxmd.com/read/28553421/irreducible-anterior-shoulder-dislocation-with-interposition-of-the-long-head-of-the-biceps-and-greater-tuberosity-fracture-a-case-report-and-review-of-the-literature
#4
Konstantinos Pantazis, Andreas Panagopoulos, Irini Tatani, Basilis Daskalopoulos, Ilias Iliopoulos, Minos Tyllianakis
BACKGROUND: Failure of closed manipulative reduction of an acute anterior shoulder dislocation is seldom reported in the literature and is usually due to structural blocks such as soft tissue entrapment (biceps, subscapularis, labrum), bony fragments (glenoid, greater tuberosity) and severe head impaction (Hill-Sachs lesion). CASE REPORT: We present a case of an irreducible anterior shoulder dislocation in a 57-year-old male patient after a road-traffic accident...
2017: Open Orthopaedics Journal
https://www.readbyqxmd.com/read/28535188/molecular-heterogeneity-at-the-network-level-high-dimensional-testing-clustering-and-a-tcga-case-study
#5
Nicolas Städler, Frank Dondelinger, Steven M Hill, Rehan Akbani, Yiling Lu, Gordon B Mills, Sach Mukherjee
Motivation: Molecular pathways and networks play a key role in basic and disease biology. An emerging notion is that networks encoding patterns of molecular interplay may themselves differ between contexts, such as cell type, tissue or disease (sub)type. However, while statistical testing of differences in mean expression levels has been extensively studied, testing of network differences remains challenging. Furthermore, since network differences could provide important and biologically interpretable information to identify molecular subgroups, there is a need to consider the unsupervised task of learning subgroups and networks that define them...
May 23, 2017: Bioinformatics
https://www.readbyqxmd.com/read/28507972/bilateral-coracoid-avulsion-fractures-with-unilateral-anterior-instability-with-glenoid-bone-loss-use-of-avulsed-fragment-for-reconstruction-of-glenoid
#6
Prateek Kumar Gupta, Ashis Acharya, Amit Mourya
INTRODUCTION: Coracoid fractures are often missed since the fracture is not visualized in a routine anteroposterior view of the shoulder and special views are not ordered. Shoulder dislocation is common but it is rare to have a dislocation with a coracoid fracture. The purpose of this paper is to present the rare occurrence of bilateral coracoid fractures in a patient with unilateral anterior shoulder instability managed using the same fractured coracoid fragment by the latarjet procedure...
November 2016: Journal of Orthopaedic Case Reports
https://www.readbyqxmd.com/read/28497167/results-of-arthroscopic-bankart-repair-with-hill-sachs-remplissage-for-anterior-shoulder-instability
#7
Nicolas Bonnevialle, Vadim Azoulay, Amélie Faraud, Fanny Elia, Pascal Swider, Pierre Mansat
PURPOSE: The aim of this study was to evaluate mid-term outcomes of Bankart repair with Hill-Sachs remplissage (BHSR) and to highlight prognostic factors of failure. METHODS: Thirty-four patients operated on for anterior shoulder instability with BHSR were enrolled in a prospective non-randomised study. Clinical and radiographic evaluation was performed at 1.5, three, six months and yearly thereafter. Outcome measures included Rowe and Walch-Duplay score. RESULTS: At mean follow-up of 35 months (24-63), the Rowe and Walch-Duplay scores reached respectively 92...
May 11, 2017: International Orthopaedics
https://www.readbyqxmd.com/read/28478901/three-dimensional-quantitative-analysis-of-humeral-head-and-glenoid-bone-defects-with-recurrent-glenohumeral-instability
#8
Noboru Matsumura, Satoshi Oki, Masateru Kitashiro, Mayu Minemoto, Takeru Ichikawa, Morio Matsumoto, Masaya Nakamura, Takeo Nagura
BACKGROUND: Although bone defects of the humeral head and glenoid could affect glenohumeral instability, bone loss has not been sufficiently evaluated. The purpose of this study was to quantify bone defects 3-dimensionally in cases with glenohumeral instability. METHODS: Three-dimensional surface models of bilateral proximal humeri and glenoids were reconstructed from computed tomography scans of 90 patients with symptomatic, unilateral, recurrent glenohumeral instability...
May 3, 2017: Journal of Shoulder and Elbow Surgery
https://www.readbyqxmd.com/read/28474965/the-effect-of-subcritical-bone-loss-and-exposure-on-recurrent-instability-after-arthroscopic-bankart-repair-in-intercollegiate-american-football
#9
Jonathan F Dickens, Brett D Owens, Kenneth L Cameron, Thomas M DeBerardino, Brendan D Masini, Karen Y Peck, Steven J Svoboda
BACKGROUND: There is no consensus on the optimal method of stabilization (arthroscopic or open) in collision athletes with anterior shoulder instability. PURPOSE: To examine the effect of "subcritical" bone loss and football-specific exposure on the rate of recurrent shoulder instability after arthroscopic stabilization in an intercollegiate American football population. STUDY DESIGN: Case-control study; Level of evidence, 3. METHODS: Fifty intercollegiate football players underwent primary arthroscopic stabilization for anterior shoulder instability and returned to football for at least a single season...
May 1, 2017: American Journal of Sports Medicine
https://www.readbyqxmd.com/read/28451607/outcomes-after-arthroscopic-bankart-repair-in-adolescent-athletes-participating-in-collision-and-contact-sports
#10
Michael G Saper, Charles Milchteim, Robert L Zondervan, James R Andrews, Roger V Ostrander
BACKGROUND: Literature on arthroscopic stabilization in adolescent patients participating in collision and contact sports is limited, as most studies include adolescents within a larger sample group comprised primarily of adults. PURPOSE: To review the outcomes of arthroscopic Bankart repair for anterior shoulder instability in an adolescent population participating in collision and contact sports. STUDY DESIGN: Case series; Level of evidence, 4...
March 2017: Orthopaedic Journal of Sports Medicine
https://www.readbyqxmd.com/read/28441305/step-by-step-technique-for-segmental-reconstruction-of-reverse-hill-sachs-lesions-using-homologous-osteochondral-allograft
#11
Hassanin Alkaduhimi, Michel P J van den Bekerom, Derek F P van Deurzen
Posterior shoulder dislocations are accompanied by high forces and can result in an anteromedial humeral head impression fracture called a reverse Hill-Sachs lesion. This reverse Hill-Sachs lesion can result in serious complications including posttraumatic osteoarthritis, posterior dislocations, osteonecrosis, persistent joint stiffness, and loss of shoulder function. Treatment is challenging and depends on the amount of bone loss. Several techniques have been reported to describe the surgical treatment of lesions larger than 20%...
June 2017: Techniques in Hand & Upper Extremity Surgery
https://www.readbyqxmd.com/read/28409110/anatomic-humeral-head-reconstruction-with-fresh-osteochondral-talus-allograft-for-recurrent-glenohumeral-instability-with-reverse-hill-sachs-lesion
#12
Matthew T Provencher, George Sanchez, Katrina Schantz, Marcio Ferrari, Anthony Sanchez, Salvatore Frangiamore, Sandeep Mannava
The treatment of recurrent glenohumeral instability, especially with a concomitant bony lesion, remains challenging. This is especially true in the case of posterior instability given its less common incidence. Moreover, the presence of an engaging reverse Hill-Sachs lesion in combination with posterior instability will result in the need for a more aggressive treatment option. In comparison with a Hill-Sachs lesion, a reverse Hill-Sachs lesion features greater chondral deficiency that must be addressed during treatment...
February 2017: Arthroscopy Techniques
https://www.readbyqxmd.com/read/28402759/medial-posterior-capsular-plication-reduces-anterior-shoulder-instability-similar-to-remplissage-without-restricting-motion-in-the-setting-of-an-engaging-hill-sachs-defect
#13
Brian C Werner, Xiang Chen, Christopher L Camp, Andreas Kontaxis, Joshua S Dines, Lawrence V Gulotta
BACKGROUND: Numerous surgical options for the management of engaging Hill-Sachs lesions exist, of which remplissage has emerged as one of the most popular arthroscopic techniques. Remplissage is not without disadvantages, however, and has been demonstrated to potentially result in a loss of external rotation (ER) due to nonanatomic tethering of the infraspinatus tendon and a potential decrease in infraspinatus strength clinically. PURPOSE: The efficacy of posterior medial capsular plication in addition to Bankart repair was examined as an arthroscopic management strategy for an engaging Hill-Sachs defect...
April 1, 2017: American Journal of Sports Medicine
https://www.readbyqxmd.com/read/28400880/arthroscopic-findings-in-anterior-shoulder-instability
#14
REVIEW
Michael Hantes, Vasilios Raoulis
BACKGROUND: In the last years, basic research and arthroscopic surgery, have improved our understanding of shoulder anatomy and pathology. It is a fact that arthroscopic treatment of shoulder instability has evolved considerably over the past decades. The aim of this paper is to present the variety of pathologies that should be identified and treated during shoulder arthroscopy when dealing with anterior shoulder instability cases. METHODS: A review of the current literature regarding arthroscopic shoulder anatomy, anatomic variants, and arthroscopic findings in anterior shoulder instability, is presented...
2017: Open Orthopaedics Journal
https://www.readbyqxmd.com/read/28295125/treatment-of-locked-posterior-shoulder-dislocation-with-bone-defect
#15
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...
May 1, 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
#16
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
#17
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
#18
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...
May 2017: American Journal of Sports Medicine
https://www.readbyqxmd.com/read/28132742/hill-sachs-lesion-classification-under-arthroscopic-findings
#19
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...
May 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
#20
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
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