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https://www.readbyqxmd.com/read/28932486/-on-track-and-off-track-shoulder-lesions
#1
REVIEW
E Itoi
Shoulder stability depends on the position of the arm as well as activities of the muscles around the shoulder. The capsulo-ligamentous structures are the main stabilisers with the arm at the end-range of movement, whereas negative intra-articular pressure and concavity-compression effect are the main stabilisers with the arm in the mid-range of movement.There are two types of glenoid bone loss: fragment type and erosion type. A bone loss of the humeral head, known as a Hill-Sachs lesion (HSL), is a compression fracture of the humeral head caused by the anterior rim of the glenoid when the humeral head is dislocated anteriorly in front of the glenoid...
August 2017: EFORT open reviews
https://www.readbyqxmd.com/read/28875360/-recurrent-instability-and-instability-arthropathy
#2
REVIEW
L Lacheta, S Siebenlist, A B Imhoff, L Willinger
Capsulolabral reconstruction (Bankart repair) is recommended as the first line treatment in young and functionally demanding active patients with anteroinferior shoulder instability, due to the high tendency to recurrent dislocation. This has become established both for arthroscopic and open primary shoulder stabilization with good clinical outcome; nevertheless, recurrence of dislocation is reported in up to 25% of patients. Risk factors for failed surgery are patient (e.g. young age, male gender and contact sports) and surgery (e...
September 5, 2017: Der Unfallchirurg
https://www.readbyqxmd.com/read/28873346/painful-posterior-shoulder-instability-anticipating-and-preventing-failure-a-study-in-25-patients
#3
Jerome Garret, Geoffroy Nourissat, Marie Béatrice Hardy, Diego Antonucci, Philippe Clavert, Pierre Mansat, Arnaud Godenèche
BACKGROUND: Painful posterior shoulder instability (PPSI) is the least common of the three clinical patterns of posterior shoulder instability. PPSI is defined as pain combined with anatomical evidence of posterior instability but no instability events. MATERIAL AND METHOD: We studied a multicentre cohort of 25 patients with PPSI; 23 were identified retrospectively and had a follow-up of at least 2 years and 2 patients were included prospectively. Most patients engaged in sports...
September 2, 2017: Orthopaedics & Traumatology, Surgery & Research: OTSR
https://www.readbyqxmd.com/read/28844682/transfer-of-the-lesser-tuberosity-for-reverse-hill-sachs-lesions-after-neglected-posterior-dislocations-of-the-shoulder-a-retrospective-clinical-study-of-13-cases
#4
Mehmet Demirel, Ali Erşen, Gökhan Karademir, Ata Can Atalar, Mehmet Demirhan
OBJECTIVE: This study aimed to present middle-term functional and radiological outcomes of the transfer of the lesser tuberosity in the management of reverse Hill-Sachs lesions following posterior dislocations of the shoulder. PATIENTS AND METHODS: With a diagnosis of neglected posterior shoulder dislocation (8 locked, 5 recurrent), 13 male patients (age range: 28-72; mean age: 39.3 years) who underwent the transfer of the lesser tuberosity due to reverse Hill-Sachs lesions, were retrospectively reviewed based on functional and radiological data...
August 24, 2017: Acta Orthopaedica et Traumatologica Turcica
https://www.readbyqxmd.com/read/28843480/conjoined-tendon-transfer-for-traumatic-anterior-glenohumeral-instability-in-patients-with-large-bony-defects-and-anterior-capsulolabral-deficiency
#5
Wiemi A Douoguih, David Goodwin, Ryan Churchill, Megan Paulus, Abby Maxwell
PURPOSE: To report outcomes of a conjoined tendon transfer procedure in a small case series of young active patients of various activity levels with recurrent traumatic anterior shoulder instability. METHODS: A retrospective chart review identified 10 consecutive patients who underwent conjoined tendon transfer (8 open and 2 arthroscopic) for anterior glenohumeral instability from January 2009 through December 2012. The indications were traumatic anterior shoulder instability with 25% or greater anterior glenoid bone loss, engaging Hill-Sachs lesion, or absent anterior-inferior labral tissue with anterior capsular tissue that did not readily hold sutures or a combination of these deficiencies...
August 23, 2017: Arthroscopy: the Journal of Arthroscopic & related Surgery
https://www.readbyqxmd.com/read/28840676/-lower-glenohumeral-recurrent-luxation-i-luxatio-erecta-i-arthroscopic-treatment-literature-review-and-case-report
#6
L G Ortiz-Díaz, M D Villalobos-Cacho
It is extremely important to take into account the complications of inferior gelnohumeral dislocation, which, although infrequent, may become incapacitating in the medium and long term, even in some cases reported, endangering the life of the same. <b>Material and methods:</b> We present the case of a young adult patient diagnosed with inferior rectal glenohumeral dislocation (luxatio erecta), with Bankart lesion and Hill Sachs lesion, treated by arthroscopy with repair of the Bankart lesion, plication of the lower capsular recess and remplissage...
March 2017: Acta Ortopédica Mexicana
https://www.readbyqxmd.com/read/28840152/humeral-avulsion-of-the-glenohumeral-ligament-indications-for-surgical-treatment-and-outcomes-a-systematic-review
#7
REVIEW
Anthony Bozzo, Colby Oitment, Patrick Thornley, James Yan, Anthony Habib, Daniel J Hoppe, George S Athwal, Olufemi R Ayeni
BACKGROUND: The inferior glenohumeral ligament, the most important static anterior stabilizer of the shoulder, becomes disrupted in humeral avulsion of the glenohumeral ligament (HAGL) lesions. Unfortunately, HAGL lesions commonly go unrecognized. A missed HAGL during an index operation to treat anterior shoulder instability may lead to persistent instability. Currently, there are no large studies describing the indications for surgical repair or the outcomes of patients with HAGL lesions...
August 2017: Orthopaedic Journal of Sports Medicine
https://www.readbyqxmd.com/read/28840148/prevalence-and-impact-of-glenoid-augmentation-in-american-football-athletes-participating-in-the-national-football-league-scouting-combine
#8
Derrick M Knapik, Robert J Gillespie, Michael J Salata, James E Voos
BACKGROUND: Bony augmentation of the anterior glenoid is used in athletes with recurrent shoulder instability and bone loss; however, the prevalence and impact of repair in elite American football athletes are unknown. PURPOSE: To evaluate the prevalence and impact of glenoid augmentation in athletes invited to the National Football League (NFL) Scouting Combine from 2012 to 2015. STUDY DESIGN: Case series; Level of evidence, 4. METHODS: A total of 1311 athletes invited to the NFL Combine from 2012 to 2015 were evaluated for history of either Bristow or Latarjet surgery for recurrent anterior shoulder instability...
August 2017: Orthopaedic Journal of Sports Medicine
https://www.readbyqxmd.com/read/28777216/posterior-shoulder-instability
#9
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/28706848/bipolar-bone-loss-of-the-shoulder-joint-due-to-recurrent-instability-use-of-fresh-osteochondral-distal-tibia-and-humeral-head-allografts
#10
Daniel B Haber, Anthony Sanchez, George Sanchez, Marcio B Ferrari, Sami Ferdousian, Matthew T Provencher
With increasing shoulder instability events, the likelihood of a bony lesion of the glenoid and/or humeral head rises. Although bone loss of either the glenoid or humeral head may result in recurrent instability, bipolar lesions have been shown, in particular, to result in a negative and additive effect on glenohumeral stability. In the case of a bipolar lesion comprising severe glenoid bone loss and an engaging, "off-track" Hill-Sachs lesion, the bony foundation of the glenohumeral joint is compromised and bony augmentation is necessary...
June 2017: Arthroscopy Techniques
https://www.readbyqxmd.com/read/28706826/arthroscopic-panlabral-repair-with-remplissage-of-hill-sachs-lesion
#11
Colten Luedke, John M Tokish
Recurrent shoulder instability in young contact athletes has been well established. The importance of bipolar bone loss in instability has come to the forefront in terms of proper management of this condition. It remains controversial, however, which patients would be better served with an arthroscopic versus open procedure and when additional procedures may reduce the risk of failure (i.e., remplissage). We present our arthroscopic technique of a panlabral repair with concomitant remplissage using the double-pulley technique...
June 2017: Arthroscopy Techniques
https://www.readbyqxmd.com/read/28706818/arthroscopic-repair-of-posterior-bony-bankart-lesion-and-subscapularis-remplissage
#12
Colten Luedke, Stefan J Tolan, John M Tokish
Posterior shoulder instability with glenoid bone loss has only a fraction of the prevalence of anterior instability. Unlike the latter, there is a paucity of literature regarding the treatment of posterior bony Bankart lesions and even less with concomitant reverse Hill-Sachs lesions. This combination of pathology leads to a difficult situation regarding treatment options. We present our technique for arthroscopic repair of a posterior bony Bankart lesion and reverse Hill-Sachs lesion. The importance of proper portal placement cannot be overstated...
June 2017: Arthroscopy Techniques
https://www.readbyqxmd.com/read/28697084/posterior-fracture-dislocation-of-the-shoulder-a-modified-mclaughlin-procedure
#13
Sanjit R Konda, Nina Fisher, Mark Gage, Kenneth A Egol
PURPOSE: Bilateral posterior fracture dislocation is a rare injury commonly associated with seizures. When the humeral head defect (reverse Hill-Sachs lesion) is between 20% and 45%, operative fixation using a modified McLaughlin procedure is recommended. This video demonstrates a case of bilateral posterior fracture dislocation after a drug-induced seizure treated with a modified McLaughlin procedure. METHODS: The original McLaughlin procedure involved transfer of the subscapularis tendon from the lesser tuberosity to the reverse Hill-Sachs defect...
August 2017: Journal of Orthopaedic Trauma
https://www.readbyqxmd.com/read/28658583/risk-of-engagement-of-bipolar-bone-defects-in-posterior-shoulder-instability
#14
Philipp Moroder, Fabian Plachel, Mark Tauber, Peter Habermeyer, Andreas Imhoff, Dennis Liem, Helmut Lill, Herbert Resch, Christian Gerhardt, Markus Scheibel
BACKGROUND: The risk of re-engagement of bipolar bone defects in posterior shoulder instability has not yet been investigated. HYPOTHESIS: Posterior glenoid defects can lead to the engagement of supposedly noncritical reverse Hill-Sachs lesions (RHSLs). STUDY DESIGN: Descriptive laboratory study. METHODS: In a retrospective multicenter study, 102 cases of posterior shoulder dislocations and resulting RHSLs were collected...
June 1, 2017: American Journal of Sports Medicine
https://www.readbyqxmd.com/read/28624240/bipolar-bone-loss-in-patients-with-anterior-shoulder-dislocation-a-comparison-of-adolescents-versus-adult-patients
#15
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
#16
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
#17
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
#18
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
#19
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...
September 15, 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
#20
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
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