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Glenohumeral joint

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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/29241660/effects-of-glenohumeral-internal-rotation-deficit-on-baseball-pitching-among-pitchers-of-different-ages
#3
Paul Pei-Hsi Chou, You-Li Chou, Yan-Sheng Wang, Rong-Tyai Wang, Hwai-Ting Lin
BACKGROUND: Previous studies have reported that glenohumeral internal rotation deficit (GIRD) may increase the risk of shoulder injury. However, the effects of GIRD on baseball pitching among pitchers of different age groups are still unclear. METHODS: The study participants were 24 high school and 24 university pitchers. For each age group, the pitchers were evenly divided into a GIRD group and a normal group. The pitching motion of each participant was captured using a motion analysis system at a sampling frequency of 300 Hz...
December 11, 2017: Journal of Shoulder and Elbow Surgery
https://www.readbyqxmd.com/read/29238821/multibody-kinematic-optimization-for-the-estimation-of-upper-and-lower-limb-human-joint-kinematics-a-systematic-review
#4
Mickael Begon, Michael S Andersen, Raphael Dumas
Multibody kinematic optimization (MKO) aims at reducing soft tissue artefact (STA) and is key in musculoskeletal modeling. The objective was to identify the numerical methods and the level of validation for the estimation of the human joint kinematics using MKO. Seventy-four articles were extracted from a systematic search in five databases and cross-referencing. Model-derived kinematics was obtained using either optimization or Kalman filtering to minimize the difference between measured (by skin markers, electromagnetic or inertial sensors) and model-derived positions and/or orientations...
December 13, 2017: Journal of Biomechanical Engineering
https://www.readbyqxmd.com/read/29230427/biomechanical-comparison-of-single-versus-double-row-capsulolabral-repair-for-shoulder-instability-a-review
#5
REVIEW
Matthew John Yousif, James Bicos
Background: The glenohumeral joint is the most commonly dislocated joint in the body. Failure rates of capsulolabral repair have been reported to be approximately 8%. Recent focus has been on restoration of the capsulolabral complex by a double-row capsulolabral repair technique in an effort to decrease redislocation rates after arthroscopic capsulolabral repair. Purpose: To present a review of the biomechanical literature comparing single- versus double-row capsulolabral repairs and discuss the previous case series of double-row fixation...
December 2017: Orthopaedic Journal of Sports Medicine
https://www.readbyqxmd.com/read/29230266/-shoulder-tumor-of-startling-appearance
#6
Ilhame Naciri, Baderddine Hassam
Chondrosarcoma is a malignant tumor of bone of mesenchymal origin which usually occurs in people after age 40 at the level of the pelvis and the shoulder. We report the case of a 65-year old female patient, with no particular past medical history, with impaired general condition, hospitalized for exploration of a large tumor of the right shoulder, evolving over 3 years. Clinical examination showed giant, humpbacked, hard, adherent tumor measuring 44 × 32 cm along its longer axis, with inflammatory signs associated with signs of vasculo-nervous compression...
2017: Pan African Medical Journal
https://www.readbyqxmd.com/read/29229406/validation-of-single-plane-fluoroscopy-and-2d-3d-shape-matching-for-quantifying-shoulder-complex-kinematics
#7
Rebekah L Lawrence, Arin M Ellingson, Paula M Ludewig
Fluoroscopy and 2D/3D shape-matching has emerged as the standard for non-invasively quantifying kinematics. However, its accuracy has not been well established for the shoulder complex when using single-plane fluoroscopy. The purpose of this study was to determine the accuracy of single-plane fluoroscopy and 2D/3D shape-matching for quantifying full shoulder complex kinematics. Tantalum markers were implanted into the clavicle, humerus, and scapula of four cadaveric shoulders. Biplane radiographs were obtained with the shoulder in five humerothoracic elevation positions (arm at the side, 30°, 60°, 90°, maximum)...
December 8, 2017: Medical Engineering & Physics
https://www.readbyqxmd.com/read/29223630/postoperative-loss-of-midline-function-in-brachial-plexus-birth-palsy
#8
Dustin A Greenhill, Arianna Trionfo, Frederick V Ramsey, Scott H Kozin, Dan A Zlotolow
PURPOSE: To identify the rate of and predictive variables for functionally limited shoulder internal rotation in postoperative patients with brachial plexus birth palsy. METHODS: Records of patients with brachial plexus birth palsy who had surgery on the affected upper extremity during a 10-year period were retrospectively reviewed. Patient demographics, physical examinations, and all upper extremity procedures were recorded. Loss of midline function (LOM) was defined as a Modified Mallet Scale or Active Movement Scale (AMS) internal rotation score <3...
December 6, 2017: Journal of Hand 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
#9
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
#10
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/29204822/the-experience-of-the-ripo-a-shoulder-prosthesis-registry-with-6-year-follow-up
#11
G Porcellini, A Combi, G Merolla, B Bordini, S Stea, G Zanoli, P Paladini
BACKGROUND: Implant registries have proved valuable in assessing the outcomes of arthroplasty procedures. Moreover, by identifying lesser quality implants they have indirectly improved the quality of care. The registry of prosthetic shoulder implants was established in 2008. METHODS: It records information on all types of primary and revision arthroplasty procedures involving the glenohumeral joint, including reverse and total arthroplasty, hemiarthroplasty, resurfacing, removal, and any other surgical procedures that are required to manage these patients...
December 4, 2017: Musculoskeletal Surgery
https://www.readbyqxmd.com/read/29202560/the-use-of-hyaluronic-acid-in-the-treatment-of-shoulder-capsulitis-a-systematic-review
#12
R Papalia, A Tecame, G Vadalà, F Russo, M Perna, G Papalia, F Bressi, S Sterzi, V Denaro
Adhesive capsulitis (AC) is a common pathological condition of the shoulder characterized by painful restriction of range of motion (ROM) of the glenohumeral joint. Currently, no consensus has been reached regarding the best treatment. Hyaluronic acid (HA) injection is a safe procedure that can result in significant improvement in active and passive ROM, alleviating pain and improving shoulder function. We systematically reviewed current literature in order to evaluate the best evidence about the effectiveness of intra-articular HA injection for the treatment of primary AC...
December 4, 2017: Journal of Biological Regulators and Homeostatic Agents
https://www.readbyqxmd.com/read/29193070/development-of-the-human-shoulder-joint-during-the-embryonic-and-early-fetal-stages-anatomical-considerations-for-clinical-practice
#13
Fidel Hita-Contreras, Indalecio Sánchez-Montesinos, Antonio Martínez-Amat, David Cruz-Díaz, Rafael J Barranco, Olga Roda
Although several studies have been published regarding the morphology and anatomical variations of the human shoulder joint, most have dealt with adult individuals. Those looking into the development of the joint have been focused on specific structures or have observed specimens in advanced gestational stages. The goal of this paper is to perform a complete analysis of the embryonic and early fetal development of the elements in the shoulder joint, and to clarify some contradictory data in the literature. In our study, serial sections of 32 human embryos (Carnegie stages 16-23) and 26 fetuses (9-13 weeks) were analyzed...
November 28, 2017: Journal of Anatomy
https://www.readbyqxmd.com/read/29188140/forelimb-muscle-and-joint-actions-in-archosauria-insights-from-crocodylus-johnstoni-pseudosuchia-and-mussaurus-patagonicus-sauropodomorpha
#14
Alejandro Otero, Vivian Allen, Diego Pol, John R Hutchinson
Many of the major locomotor transitions during the evolution of Archosauria, the lineage including crocodiles and birds as well as extinct Dinosauria, were shifts from quadrupedalism to bipedalism (and vice versa). Those occurred within a continuum between more sprawling and erect modes of locomotion and involved drastic changes of limb anatomy and function in several lineages, including sauropodomorph dinosaurs. We present biomechanical computer models of two locomotor extremes within Archosauria in an analysis of joint ranges of motion and the moment arms of the major forelimb muscles in order to quantify biomechanical differences between more sprawling, pseudosuchian (represented the crocodile Crocodylus johnstoni) and more erect, dinosaurian (represented by the sauropodomorph Mussaurus patagonicus) modes of forelimb function...
2017: PeerJ
https://www.readbyqxmd.com/read/29181986/disproportionate-fluid-sign-as-an-aid-in-diagnosing-high-grade-bursal-sided-supraspinatus-tendon-tear
#15
Seonji Jeong, Ja-Young Choi, Yu Suhn Kang, Hye Jin Yoo, Sae Hoon Kim, Sung Hwan Hong, Heung Sik Kang
Background Deep, high-grade bursal-sided supraspinatus tendon tears are sometimes preoperatively misinterpreted as full-thickness tears on shoulder magnetic resonance imaging (MRI). Purpose To determine the usefulness of disproportionate fluid sign for differentiating high-grade bursal-sided partial-thickness tears from full-thickness tears on conventional MRI. Material and Methods Preoperative MRIs of 198 patients with arthroscopically confirmed high-grade bursal-sided partial-thickness tears and full-thickness tears were independently reviewed by two readers on two occasions...
January 1, 2017: Acta Radiologica
https://www.readbyqxmd.com/read/29176503/diagnostic-injections-about-the-shoulder
#16
Edward McFarland, Johnathan Bernard, Eric Dein, Alex Johnson
Injections about the shoulder serve diagnostic as well as therapeutic purposes. Diagnosis of shoulder conditions, such as rotator cuff tears, acromioclavicular joint pathology, subacromial impingement or anterolateral pain syndrome, glenohumeral joint pathology, suprascapular nerve entrapment, and biceps tendon pathologies, is often complicated by concomitant conditions with overlapping symptoms and by inconclusive physical examination and imaging results. Injections of anesthetic agents can often help clinicians locate the source of pain...
December 2017: Journal of the American Academy of Orthopaedic Surgeons
https://www.readbyqxmd.com/read/29169956/synovial-fluid-biomarkers-association-with-chronic-rotator-cuff-tear-severity-and-pain
#17
Chien-An Shih, Kuo-Chen Wu, Chung-Jung Shao, Tai-Chang Chern, Wei-Ren Su, Po-Ting Wu, I-Ming Jou
BACKGROUND: We tested the hypothesis that biomarkers in the synovial fluid of the glenohumeral (shoulder) joint are correlated with visual analog scale (VAS) scores, functional scores, and ultrasound findings of chronic rotator cuff tear (RCT) severity. METHODS: We measured biomarkers in shoulder joint synovial fluid of 42 patients with partial-thickness (21), nonmassive full-thickness (10), and massive full-thickness (11) RCTs. Pain duration, tear severity, and VAS and functional scores were compared with interleukin (IL) 1β, IL-6, matrix metalloproteinase (MMP) 1, and MMP-13 levels...
November 21, 2017: Journal of Shoulder and Elbow Surgery
https://www.readbyqxmd.com/read/29162079/examination-of-concomitant-glenohumeral-pathologies-in-patients-treated-arthroscopically-for-calcific-tendinitis-of-the-shoulder-and-implications-for-routine-diagnostic-joint-exploration
#18
Gernot Lang, Kaywan Izadpanah, Eva Johanna Kubosch, Dirk Maier, Norbert Südkamp, Peter Ogon
BACKGROUND: Glenohumeral exploration is routinely performed during arthroscopic removal of rotator cuff calcifications in patients with calcific tendinitis of the shoulder (CTS). However, evidence on the prevalence of intraarticular co-pathologies is lacking and the benefit of glenohumeral exploration remains elusive. The aim of the present study was to assess and quantify intraoperative pathologies during arthroscopic removal of rotator cuff calcifications in order to determine whether standardized diagnostic glenohumeral exploration appears justified in CTS patients...
November 21, 2017: BMC Musculoskeletal Disorders
https://www.readbyqxmd.com/read/29146012/a-biomechanical-cadaveric-study-comparing-superior-capsule-reconstruction-using-fascia-lata-allograft-with-human-dermal-allograft-for-irreparable-rotator-cuff-tear
#19
Teruhisa Mihata, Christopher N H Bui, Masaki Akeda, Matthew A Cavagnaro, Michael Kuenzler, Alexander B Peterson, Michelle H McGarry, Yasuo Itami, Orr Limpisvasti, Masashi Neo, Thay Q Lee
BACKGROUND: Biomechanical and clinical success of the superior capsule reconstruction (SCR) using fascia lata (FL) grafts has been reported. In the United States, human dermal (HD) allograft has been used successfully for SCRs; however, the biomechanical characteristics have not been reported. METHODS: Eight cadaveric shoulders were tested in 5 conditions: (1) intact; (2) irreparable supraspinatus tear; (3) SCR using FL allograft with anterior and posterior suturing; (4) SCR using HD allograft with anterior and posterior suturing; and (5) SCR using HD allograft with posterior suturing...
December 2017: Journal of Shoulder and Elbow Surgery
https://www.readbyqxmd.com/read/29137087/isolated-tear-of-the-cord-like-middle-glenohumeral-ligament-in-buford-complex-a-case-report
#20
Byung-Ill Lee, Yong Beom Kim, Sung Hun Won, Shu Chiang Hwang, Sung-Woo Choi, Jae-Hwi Nho, Dong-Il Chun
RATIONALE: We describe a rare case of the isolated tear in the cord-like middle glenohumeral ligament (MGHL) in Buford complex. To the best of our knowledge, this is the first report in the English literature about the isolated tear of cord-like MGHL in Buford complex. The present report describes in detail our experience with the diagnosis of isolated tear of the cord-like MGHL in Buford complex and management. PATIENT CONCERNS: A 50-year-old female patient visited our hospital with pain and stiffness in the right shoulder that lasted for 9 months...
November 2017: Medicine (Baltimore)
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