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https://www.readbyqxmd.com/read/29244838/muscle-function-in-glenohumeral-joint-stability-during-lifting-task
#1
Yoann Blache, Mickaël Begon, Benjamin Michaud, Landry Desmoulins, Paul Allard, Fabien Dal Maso
Ensuring glenohumeral stability during repetitive lifting tasks is a key factor to reduce the risk of shoulder injuries. Nevertheless, the literature reveals some lack concerning the assessment of the muscles that ensure glenohumeral stability during specific lifting tasks. Therefore, the purpose of this study was to assess the stabilization function of shoulder muscles during a lifting task. Kinematics and muscle electromyograms (n = 9) were recorded from 13 healthy adults during a bi-manual lifting task performed from the hip to the shoulder level...
2017: PloS One
https://www.readbyqxmd.com/read/29244705/arthroscopic-repair-of-recurrent-posterior-shoulder-subluxation-after-total-shoulder-arthroplasty-a-case-report
#2
Ricardo Grieshaber-Bouyer, Christian Gerber
CASE: A 53-year-old man presented with osteoarthritis (Walch biconcave [B2] glenoid retroversion, 22°; glenohumeral subluxation index, 65%) and a partial rupture of the supraspinatus tendon in the left shoulder. Following anatomic total joint replacement, he developed disabling recurrent posterior subluxation despite a stable prosthesis and a correctly centered glenoid head, as observed with postoperative radiography and computed tomography. In order to avoid bone loss and the complications associated with revision arthroplasty, we performed arthroscopic reefing of the posterior capsule as an experimental minimally invasive treatment...
July 2017: JBJS Case Connector
https://www.readbyqxmd.com/read/29238262/effect-of-upper-extremity-strengthening-exercises-on-the-lumbar-strength-disability-and-pain-of-patients-with-chronic-low-back-pain-a-randomized-controlled-study
#3
Erdem Atalay, Bedrettin Akova, Hakan Gür, Ufuk Sekir
The present study aimed to analyze the impacts of a low back rehabilitation program accompanied with neck, shoulder and upper back exercises on pain, disability, and physical characteristics of patients with chronic low back pain. Twenty sedentary male patients with chronic low back pain participated in the study on a voluntary basis. The patients were randomly allocated into two groups: a conventional low back exercise group (CE) and a supported exercise group (SE; CE plus upper back, neck, and shoulder exercises)...
December 2017: Journal of Sports Science & Medicine
https://www.readbyqxmd.com/read/29237578/the-effectiveness-of-exercise-therapy-on-scapular-position-and-motion-in-individuals-with-scapular-dyskinesis-systematic-review-protocol
#4
Afsun Nodehi Moghadam, Kianoush Abdi, Mohsen Shati, Shohreh Noorizadeh Dehkordi, Abbas Ali Keshtkar, Zahra Mosallanezhad
BACKGROUND: Scapular dyskinesis is an alteration in normal scapular position and motion. Some researchers believe that altered kinematics of the scapula subsequent to dysfunction or weakness of scapular stabilizing muscles contributes to impingement syndrome. Scapular muscle exercises are included in the rehabilitation of patients with subacromial impingement syndrome and scapular dyskinesis because the muscular system is one of the major contributors of scapular positioning both at rest and during shoulder movement, but there is considerable uncertainty relating to the relative effectiveness of such approaches on changing scapular position and motion...
December 13, 2017: JMIR Research Protocols
https://www.readbyqxmd.com/read/29236126/-structural-damage-after-shoulder-dislocation-and-development-of-surgical-treatment-from-a-historical-perspective
#5
REVIEW
P Habermeyer, P Magosch
In the nineteenth century there was a high incidence of habitual shoulder instability caused by epileptic seizures and accompanied by therapeutic dilettantism, which led to socioeconomic problems in the working population. In the preradiography era the pathomechanism of shoulder dislocation was only known on the basis of cadaver studies and autopsy findings. The underlying structural disorders of habitual shoulder instability in the Bismarck era were published by Malgaigne, Broca and Hartmann. In1898 the first surgical reconstructive stabilization procedure for habitual shoulder dislocation was performed by Wilhelm Müller in Rostock...
December 13, 2017: Der Unfallchirurg
https://www.readbyqxmd.com/read/29225018/incidence-and-changing-trends-of-shoulder-stabilization-in-the-united-states
#6
Rachel M Frank, Peter N Chalmers, Mario Moric, Timothy Leroux, Matthew T Provencher, Anthony A Romeo
PURPOSE: To determine the incidence and demographic characteristics of shoulder stabilization in the United States, with particular focus on age, sex, and inpatient versus outpatient treatment. METHODS: The National Hospital Discharge Survey and the National Survey of Ambulatory Surgery databases were searched using a combination of International Classification of Diseases, Ninth Revision diagnosis and procedure codes, encompassing open and arthroscopic shoulder stabilization procedures...
December 7, 2017: Arthroscopy: the Journal of Arthroscopic & related Surgery
https://www.readbyqxmd.com/read/29219854/reconstruction-of-the-scapula-in-pediatric-and-adolescent-patients-after-total-scapulectomy-a-report-of-10-patients-treated-by-extracorporeal-irradiation-and-reimplantation-of-the-scapula
#7
Ahmed M El Ghoneimy, Mohamed S Zaghloul, Iman Zaky, Hala Taha, Ahmed Elgammal, Magdy El Sherbiny, Nehal Kamal
BACKGROUND: Ewing sarcoma of the scapula is uncommon. Restoration of shoulder function after total scapulectomy is challenging. Extracorporeal irradiation and reimplantation is a well-known method of biological reconstruction in orthopaedic oncology; yet very few reports in the literature describe its specific use in tumors of the scapula. PATIENTS AND METHODS: Ten patients with the diagnosis of Ewing sarcoma of the scapula were surgically treated by total scapulectomy and extracorporeal irradiation and reimplantation of the scapula...
December 6, 2017: Journal of Pediatric Orthopedics
https://www.readbyqxmd.com/read/29216740/new-concepts-of-radiologic-preoperative-evaluation-of-anterior-shoulder-instability-on-track-and-off-track-lesions
#8
Aishwarya Gulati, Riham Dessouky, Vibhor Wadhwa, Drew Sanders, Avneesh Chhabra
The shoulder is the most frequently dislocated joint in the body due to a larger range of motion and a small area of articulation between the humeral and glenoid surfaces. Traumatic shoulder dislocations, especially those associated with injury to the labroligamentous or bony stabilizers of the joint, lead to further reduction of articular surface contact with resultant glenohumeral instability and recurrent shoulder dislocations. Imaging plays an increasingly important role in the preoperative evaluation of patients with traumatic shoulder instability by evaluating glenohumeral bone loss (uni- or bipolar), assessing soft tissue injuries and identifying patients at risk of postoperative recurrence...
January 1, 2017: Acta Radiologica
https://www.readbyqxmd.com/read/29205214/biomechanics-of-the-shoulder-girdle-a-case-study-on-the-effects-of-union-rugby-tackles
#9
Luís Faria, Bárbara Campos, Renato Natal Jorge
PURPOSE: The shoulder girdle is a complex system, comprised by a kinematic chain and stabilizers. Due to the delicate equilibrium and synchronism between mobility and stability, high external loads may compromise its physiology, increasing the risk of injuries. Thus, this study intends to fully characterize the effects of a rugby tackle on the shoulder's anatomy and physiology. METHODS: For the experimental procedures, a matrix of pressure sensors was used, based on the Teckscan® pressure in-soles, force plates, an isokinetic dynamometer and sEMG (surface electromyography)...
2017: Acta of Bioengineering and Biomechanics
https://www.readbyqxmd.com/read/29201302/antibiotic-spacers-in-shoulder-arthroplasty-comparison-of-stemmed-and-stemless-implants
#10
Eric M Padegimas, Alexia Narzikul, Cassandra Lawrence, Benjamin A Hendy, Joseph A Abboud, Matthew L Ramsey, Gerald R Williams, Surena Namdari
Background: Antibiotic spacers in shoulder periprosthetic joint infection deliver antibiotics locally and provide temporary stability. The purpose of this study was to evaluate differences between stemmed and stemless spacers. Methods: All spacers placed from 2011 to 2013 were identified. Stemless spacers were made by creating a spherical ball of cement placed in the joint space. Stemmed spacers had some portion in the humeral canal. Operative time, complications, reimplantation, reinfection, and range of motion were analyzed...
December 2017: Clinics in Orthopedic Surgery
https://www.readbyqxmd.com/read/29199779/analysis-of-muscular-activity-in-archery-a-comparison-of-skill-level
#11
Hiroshi Shinohara, Yukio Urabe
AIM: A series of archery shooting movements requires strong activity of muscles attached to the shoulder girdle and upper extremity. It is unclear which muscles influence archery competition scores. This study aimed to compare muscle activity of the shoulder girdle and upper extremity during shooting movements and to analyze the muscles influencing in archeryskill improvement. METHODS: Thirty male archers, who were divided into three groups based on skill level (elite, preelite, and beginner), were included in this study...
December 1, 2017: Journal of Sports Medicine and Physical Fitness
https://www.readbyqxmd.com/read/29198939/three-dimensional-computed-tomography-measurement-accuracy-of-varying-hill-sachs-lesion-size
#12
Anthony Ho, Michael D Kurdziel, Denise M Koueiter, J Michael Wiater
BACKGROUND: The glenoid track concept has been proposed to correlate shoulder stability with bone loss. Accurate assessment of Hill-Sachs lesion size preoperatively may affect surgical planning and postoperative outcomes; however, no measurement method has been universally accepted. This study aimed to assess the accuracy and reliability of measuring Hill-Sachs lesion sizes using 3-dimensional (3D) computed tomography (CT). METHODS: Nine polyurethane humerus bone substitutes were used to create Hill-Sachs lesions of varying sizes with a combination of lesion depth (shallow, intermediate, and deep) and width (small, medium, and large)...
November 30, 2017: Journal of Shoulder and Elbow Surgery
https://www.readbyqxmd.com/read/29198351/editorial-commentary-arthroscopic-latarjet-shoulder-stabilization-where-are-we-where-are-we-going
#13
EDITORIAL
Alexandre Lädermann
Arthroscopic Latarjet procedure has shown satisfactory clinical outcomes in the treatment of anteroinferior shoulder instability. Although as of today there is no proven advantage of the arthroscopic procedure over an open one, it is too early to give up. At the same time, crucial to understand the causes of failure, to find the solutions to every single difficulty to simplify this surgery and to make it as accessible as possible.
December 2017: Arthroscopy: the Journal of Arthroscopic & related Surgery
https://www.readbyqxmd.com/read/29195899/ibuprofen-impairs-capsulolabral-healing-in-a-rat-model-of-anterior-glenohumeral-instability
#14
Jonathan D Packer, Arya G Varthi, David S Zhu, Frances G Javier, Jason D Young, Jennie V Garver, Havalee Henry, Steven M Tommasini, Theodore A Blaine
BACKGROUND: Failure of glenoid labrum and capsular healing after glenohumeral dislocation can lead to persistent shoulder instability. The purpose of this study was to determine the effect of nonsteroidal anti-inflammatory drugs (NSAIDs) on the healing glenoid labrum and capsule after glenohumeral dislocation in a rat model. METHODS: Sixty-six rats had surgically induced anterior-inferior labral tears and anterior glenohumeral dislocation. Postoperatively, the animals were assigned to either normal (n = 32) or ibuprofen drinking water (n = 31)...
November 29, 2017: Journal of Shoulder and Elbow Surgery
https://www.readbyqxmd.com/read/29189406/cleidocranial-dysplasia-a-review-of-clinical-radiological-genetic-implications-and-a-guidelines-proposal
#15
Emilie Farrow, Romain Nicot, Axel Wiss, Amélie Laborde, Joël Ferri
In this review, we aimed to depict the clinical, radiological, and genetic features of cleidocranial dysplasia (CCD) and to suggest management guidelines, based on our experience of 8 cases, with an emphasis given to dental complications.The most common craniofacial features of CCD that stand out are a patency of the anterior fontanelle, an inverted pear-shaped calvaria, a hypertelorism, a general midface retrusion, and a mandible prognathism, associated with an excessive mobility of the shoulders, a short stature, and teeth abnormalities such as supernumerary teeth and failure of eruption, in particular...
November 17, 2017: Journal of Craniofacial Surgery
https://www.readbyqxmd.com/read/29184277/effect-of-axial-shoulder-external-rotation-exercise-in-side-lying-using-visual-feedback-on-shoulder-external-rotators
#16
Dong Hyun Kim, Tae Ho Kim
[Purpose] This study aimed to determine effectiveness of axial side-lying wiper exercise using the visual feedback with a laser pointer on infraspinatus and posterior deltoid muscles. [Subjects and Methods] The subjects were 22 healthy adults (18 males, 4 females) in their 20s who consented to participate in the present study. Surface Electromyography was used to measure the infraspinatus and posterior deltoid muscle activity before and after an intervention. The intervention consisted of performing side-lying wiper exercise with a 1-kg dumbbell and a ruled paper for 30 minutes...
October 2017: Journal of Physical Therapy Science
https://www.readbyqxmd.com/read/29182026/extensor-carpi-ulnaris-tenodesis-versus-no-stabilization-after-wide-resection-of-distal-ulna-giant-cell-tumors
#17
Ioannis D Papanastassiou, Olga D Savvidou, George D Chloros, Panayiotis D Megaloikonomos, Vasileios A Kontogeorgakos, Panayiotis J Papagelopoulos
BACKGROUND: The necessity of stabilizing the residual ulnar stump after distal ulna tumor resection remains controversial. The authors retrospectively compared the outcome of patients who underwent wide resection of distal ulna giant cell tumors (GCTs) and reconstruction with tenodesis of the extensor carpi ulnaris (ECU) or without reconstruction. METHODS: Between 2007 and 2015, 9 patients (6 females, 3 males; mean age, 36.8 years; range, 24-65 years) who underwent distal ulna resection for GCT of bone were retrospectively reviewed...
November 1, 2017: Hand: Official Journal of the American Association for Hand Surgery
https://www.readbyqxmd.com/read/29181345/intrapleural-penetration-of-a-clavicle-fracture-an-indication-for-operative-fixation
#18
Ryan D DeAngelis, Kenneth W Graf, Rakesh P Mashru
Introduction: Clavicle fractures are common injuries treated by orthopedic surgeons, with most injuries managed nonoperatively. Operative fixation of clavicle fractures is indicated in specific clinical scenarios such as open injuries, ipsilateral shoulder trauma, or fractures with associated neurovasculature compromise. Operative fixation is not widely accepted for closed injuries and is typically reserved for instances of failed closed treatment with resultant nonunion or delayed union...
July 2017: Journal of Orthopaedic Case Reports
https://www.readbyqxmd.com/read/29180197/tsg-6-is-highly-expressed-in-human-abdominal-aortic-aneurysms
#19
S Keisin Wang, Jie Xie, Linden A Green, Robert A McCready, Raghu L Motaganahalli, Andres Fajardo, Clifford C Babbey, Michael P Murphy
BACKGROUND: The formation of abdominal aortic aneurysms (AAA) is characterized by a dominance of proinflammatory forces that result in smooth muscle cell apoptosis, extracellular matrix degradation, and progressive diameter expansion. Additional defects in the antiinflammatory response may also play a role but have yet to be fully characterized. TSG-6 (TNF-stimulated gene-6) is a potent antiinflammatory protein involved in extracellular matrix stabilization and cell migration active in many pathological conditions...
December 2017: Journal of Surgical Research
https://www.readbyqxmd.com/read/29179028/kinematic-analysis-of-scapular-movements-in-patients-with-facioscapulohumeral-muscular-dystrophy
#20
C Savcun Demirci, E Turgut, E Ayvat, Ö Onursal, F Ayvat, T I Yıldız, I Düzgün, M Kılınç, S Aksu Yıldırım
The purpose of this study is to evaluate scapular movements by the three-dimensional electromagnetic system during shoulder elevation in FSHMD patients, and to compare the results with healthy individuals. 10 patients with FSHMD and 10 healthy individuals were included in the study. Scapular anterior-posterior tilt, upward-downward rotation and internal-external rotation at 30°, 60° and 90° were evaluated using the three-dimensional electromagnetic system during the elevation of the upper limbs in the scapular plane...
November 14, 2017: Journal of Electromyography and Kinesiology
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