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https://www.readbyqxmd.com/read/28350557/double-versus-single-tendon-transfers-to-improve-shoulder-function-in-brachial-plexus-birth-palsy
#1
Dustin A Greenhill, William R Smith, F V Ramsey, Scott H Kozin, Dan A Zlotolow
BACKGROUND: In children with brachial plexus birth palsy (BPBP) undergoing tendon transfers to augment shoulder external rotation, it is unclear whether transfer of the latissimus dorsi with its combined latissimus dorsi and teres major (cLT) versus isolated teres major (iTM) tendon transfer yield different outcomes. METHODS: Records of patients with BPBP who underwent shoulder tendon transfers to augment external rotation were retrospectively reviewed. Transfer type (cLT or iTM) was considered indiscriminate by virtue of surgeon preference...
March 27, 2017: Journal of Pediatric Orthopedics
https://www.readbyqxmd.com/read/28345405/thickness-distribution-of-glenohumeral-joint-cartilage
#2
Christoph Schleich, Bernd Bittersohl, Gerald Antoch, Rüdiger Krauspe, Christoph Zilkens, Jörn Kircher
High-resolution 3-dimensional cartilage-specific magnetic resonance imaging (MRI) was performed at 3 T to test the following hypotheses: (1) there is a nonuniform cartilage thickness distribution both on the proximal humerus and on the glenoid surface and (2) the glenohumeral joint as a combined system is congruent with the level of the joint cartilage surface without substantial radial mismatch. Inclusion of 38 volunteers (19 females, mean age 24.34 ± 2.22 years; range 21-29 years) in a prospective study...
April 2017: Cartilage
https://www.readbyqxmd.com/read/28341266/influence-of-fixation-point-of-latissimus-dorsi-tendon-transfer-for-irreparable-rotator-cuff-tear-on-glenohumeral-external-rotation-a-cadaver-study
#3
K Bargoin, M Boissard, J Kany, J Grimberg
Latissimus dorsi tendon transfer is a surgical option for treating irreparable posterosuperior rotator cuff tears, notably when attempting to reconstruct active external rotation. We hypothesized that the positioning of the transfer's point of fixation would differ depending on the desired elbow-to-body external rotation or external rotation with the elbow abducted. MATERIAL AND METHODS: Seven shoulders from four whole frozen cadavers were used. We created two systems to install the subject in a semi-seated position to allow external rotation elbow to body and the arm abducted 90°...
December 2016: Orthopaedics & Traumatology, Surgery & Research: OTSR
https://www.readbyqxmd.com/read/28336229/arthroscopic-in-situ-repair-of-partial-bursal-rotator-cuff-tears-without-acromioplasty
#4
Maximiliano Ranalletta, Luciano A Rossi, Nicolas A Atala, Bernardo A B Altieri, Gastón D Maignon, Santiago L Bongiovanni
PURPOSE: To evaluate functional outcomes and complications in a consecutive group of patients with partial bursal rotator cuff tears (PBRCTs) treated with insitu repair without acromioplasty. METHODS: Seventy-four patients who had undergone an arthroscopic single row in situ repair for bursal-sided rotator cuff tears were evaluated. Clinical assessment consisted of glenohumeral range of motion measurement, the American Shoulder and Elbow Surgeons score, and the University of California at Los Angeles score...
March 20, 2017: Arthroscopy: the Journal of Arthroscopic & related Surgery
https://www.readbyqxmd.com/read/28335687/isolated-hagl-lesion-after-arthroscopic-bankart-repair-in-a-professional-soccer-player
#5
Haluk Celik, Mustafa Faik Seckin, Adnan Kara, Senol Akman
Post-traumatic anterior shoulder instability commonly occurs following an avulsion of capsulolabral complex from glenoid (Bankart lesion) or rarely after humeral avulsion of the glenohumeral ligaments (HAGL lesion). Arthroscopic Bankart repair offers high success rates of healing. However, trauma following the treatment may cause implant failure or re-avulsion of the treated tissue. We aim to present the diagnosis and treatment of an isolated HAGL lesion in a professional soccer player who had previously undergone arthroscopic Bankart repair...
March 24, 2017: Physician and Sportsmedicine
https://www.readbyqxmd.com/read/28333542/critical-value-of-anterior-glenoid-bone-loss-that-leads-to-recurrent-glenohumeral-instability-after-arthroscopic-bankart-repair
#6
Sang-Jin Shin, Rag Gyu Kim, Yoon Sang Jeon, Tae Hun Kwon
BACKGROUND: Generally, a glenoid bone loss greater than 20% to 25% is considered critical for poor surgical outcomes after a soft tissue repair. However, recent studies have suggested that the critical value should be lower. PURPOSE: To determine the critical value of anterior glenoid bone loss that led to surgical failure in patients with anterior shoulder instability. STUDY DESIGN: Case-control study; Level of evidence, 3. METHODS: The study included 169 patients with anterior glenoid erosion...
March 1, 2017: American Journal of Sports Medicine
https://www.readbyqxmd.com/read/28327299/subject-specific-musculoskeletal-modeling-in-the-evaluation-of-shoulder-muscle-and-joint-function
#7
Wen Wu, Peter V S Lee, Adam L Bryant, Mary Galea, David C Ackland
Upper limb muscle force estimation using Hill-type muscle models depends on musculotendon parameter values, which cannot be readily measured non-invasively. Generic and scaled-generic parameters may be quickly and easily employed, but these approaches do not account for an individual subject's joint torque capacity. The objective of the present study was to develop a subject-specific experimental testing and modeling framework to evaluate shoulder muscle and joint function during activities of daily living, and to assess the capacity of generic and scaled-generic musculotendon parameters to predict muscle and joint function...
November 7, 2016: Journal of Biomechanics
https://www.readbyqxmd.com/read/28327294/reference-values-for-the-scalene-interval-width-during-varying-degrees-of-glenohumeral-abduction-using-ultrasonography
#8
Ross Mattox, Patrick J Battaglia, Aaron B Welk, Yumi Maeda, Daniel W Haun, Norman W Kettner
OBJECTIVE: The aim of this study was to establish reference values for the width of the interval between the anterior and middle scalene muscles using ultrasonography during varying degrees of glenohumeral joint (GH) abduction. Reliability and body mass index (BMI) data were also assessed. METHODS: Interscalene triangles of asymptomatic participants were scanned bilaterally in the transverse plane. Images were obtained at 0°, 90°, and 150° of GH abduction with the participant seated...
November 2016: Journal of Manipulative and Physiological Therapeutics
https://www.readbyqxmd.com/read/28322758/increased-seat-dump-angle-in-a-manual-wheelchair-is-associated-with-changes-in-thoracolumbar-lordosis-and-scapular-kinematics-during-propulsion
#9
Beth A Cloud, Kristin D Zhao, Arin M Ellingson, Ahmad Nassr, Anthony J Windebank, Kai-Nan An
OBJECTIVE: To quantify and compare spinal curvature and shoulder kinematics throughout the manual wheelchair propulsion cycle for individuals with spinal cord injury (SCI) who were seated at 2 different seat dump angles. DESIGN: Single-group, repeated-measures study. SETTING: Academic medical center. PARTICIPANTS: Twenty-eight individuals completed the telephone screening; 21 were eligible and completed the study. INTERVENTIONS: Participants' personal manual wheelchairs were modified to have seat dump angles of 0° or 14°, with a vertical backrest...
March 18, 2017: Archives of Physical Medicine and Rehabilitation
https://www.readbyqxmd.com/read/28319426/high-satisfaction-and-return-to-sports-after-total-shoulder-arthroplasty-in-patients-aged-55-years-and-younger
#10
Grant H Garcia, Joseph N Liu, Alec Sinatro, Hao-Hua Wu, Joshua S Dines, Russell F Warren, David M Dines, Lawrence V Gulotta
BACKGROUND: Young, active candidates for total shoulder arthroplasty (TSA) are a unique group of patients. Not only do they demand longevity and improved function, but they also desire a return to physical activities. PURPOSE: To determine the rate of return to sports in patients aged ≤55 years undergoing TSA. STUDY DESIGN: Case series; Level of evidence, 4. METHODS: This was a retrospective review of consecutive patients who underwent anatomic TSA at a single institution...
March 1, 2017: American Journal of Sports Medicine
https://www.readbyqxmd.com/read/28315182/classifications-in-brief-walch-classification-of-primary-glenohumeral-osteoarthritis
#11
Kiet V Vo, Daniel J Hackett, Albert O Gee, Jason E Hsu
No abstract text is available yet for this article.
March 17, 2017: Clinical Orthopaedics and related Research
https://www.readbyqxmd.com/read/28293503/near-complete-humerus-reconstruction-in-the-pediatric-patient-with-vascularized-free-fibula-transfer
#12
John Shuck, Benjamin C Wood, Christopher Zarella, Albert K Oh, Robert M Henshaw, Gary F Rogers
Vascularized free fibula transfer remains the gold standard for reconstruction of large segmental diaphyseal defects of the upper extremity. In the pediatric patient, before skeletal maturity, free fibula transfer with the fibular head provides an active physis for growth and an articular interface for glenohumeral joint reconstruction. Clinical and cadaveric studies have demonstrated that the vascular supply to the fibular head originates, in most cases, from the anterior tibial system. However, anatomical variation exists, and we report a case in which a vascularized fibula autograft including the physis was transferred on the peroneal artery in a 5-year-old patient with Ewing's sarcoma...
December 2016: Plastic and Reconstructive Surgery. Global Open
https://www.readbyqxmd.com/read/28289818/patients-expectations-of-shoulder-instability-repair
#13
Johannes E Plath, Tim Saier, Matthias J Feucht, Philipp Minzlaff, Gernot Seppel, Sepp Braun, Daniel Hatch, Andreas B Imhoff
PURPOSE: To analyze and compare patient expectations of primary and revision shoulder stabilization and to assess the factors associated with patients' expectations. METHODS: Pre-operative patient expectations after shoulder instability repair were prospectively assessed using a self-designed questionnaire. The survey included questions on the expected level and type of return to sports, instability, pain, risk of osteoarthritis, and overall shoulder condition. RESULTS: One-hundred and forty-five patients (99 primary; 46 revision repair) were included...
March 13, 2017: Knee Surgery, Sports Traumatology, Arthroscopy: Official Journal of the ESSKA
https://www.readbyqxmd.com/read/28287685/care-of-shoulder-pain-in-the-overhead-athlete
#14
Joseph Chorley, Richard E Eccles, Armand Scurfield
Shoulder complaints are common in the overhead athlete. Understanding the biomechanics of throwing and swimming requires understanding the importance of maintaining the glenohumeral relationship of the shoulder. Capsular laxity, humeral retrotorsion, glenoid retroversion, glenohumeral internal rotation deficit, and scapular dyskinesis can all contribute to shoulder dysfunction and pain. Injuries are more likely during peak height velocity, especially when coupled with overuse, previous injuries not adequately treated, or change in the demands on the shoulder such as a new technique, bigger field, or longer race...
March 1, 2017: Pediatric Annals
https://www.readbyqxmd.com/read/28285837/the-effect-of-shoulder-position-on-inferior-glenohumeral-mobilization
#15
Dexter W Witt, Nancy R Talbott
STUDY DESIGN: Cross-sectional clinical measurement study. INTRODUCTION: Inferior mobilizations are used to treat patients with shoulder dysfunctions. Common positions recommended for promoting an inferior glide include: (1) an open-packed position (OPP) in which the shoulder is in 55° of abduction, 30° of horizontal adduction, and no rotation; (2) neutral position (NP) of the shoulder; and (3) position of 90° of shoulder abduction (ABDP). Studies comparing the impact of position on inferior mobilization are lacking...
March 9, 2017: Journal of Hand Therapy: Official Journal of the American Society of Hand Therapists
https://www.readbyqxmd.com/read/28276988/are-professional-handball-players-at-risk-for-developing-a-glenohumeral-internal-rotation-deficit-in-their-dominant-arm
#16
Pedro Seabra, Carola F Van Eck, Márcia Sá, João Torres
OBJECTIVES: Overhead athletes, such as baseball players, have been shown to have adaptive changes in the shoulder range of motion (ROM) of their dominant arm. Professional handball players are a unique subtype of overhead athletes with very different demands from baseball players. The aim of this study was to determine if professional handball players demonstrate differences in shoulder ROM between their dominant and non-dominant arm and try to relate them with new variables. METHODS: Fifty professional male handball players were included and completed a questionnaire regarding age at which they started to play, number of hours they practice a week, field position and arm dominance...
February 28, 2017: Physician and Sportsmedicine
https://www.readbyqxmd.com/read/28271091/osteochondritis-dissecans-of-the-humeral-head-a-case-report-and-review-of-the-literature
#17
Davod Jafari, Hooman Shariatzadeh, Farid Najd Mazhar, Mohammad Ali Okhovatpour, Mehran Razavipour
Osteochondritis dissecans (OCD) is a common joint disorder in knee, ankle and elbow, however it can be rarely found in glenohumeral joint. In this study, we report an asymptomatic case of humeral head OCD, which was detected incidentally following a trauma. X-rays showed an area of lucency around an oval bony fragment measuring about 1 cm on the superior aspect of the humeral head. However, the patient was pain-free and the shoulder range of motion was normal.
January 2017: Archives of Bone and Joint Surgery
https://www.readbyqxmd.com/read/28271088/axillary-artery-injury-associated-with-proximal-humerus-fracture-a-report-of-6-cases
#18
Rinne M Peters, Mariano E Menendez, Jos J Mellema, David Ring, R Malcolm Smith
Proximal humerus fractures are common, but associated injury of the axillary artery is uncommon. The majority of published blunt traumatic axillary artery injuries are associated with anterior glenohumeral dislocation; a few are associated with isolated proximal humerus fractures or fracture-dislocation. Experience within our institution demonstrates that axillary artery injury is often unrecognized on initial presentation owing to palpable peripheral pulses and the absence of ischemia and places the hand at risk of necrosis and amputation if there is prolonged ischemia and the forearm at risk of compartment syndrome after revascularization...
January 2017: Archives of Bone and Joint Surgery
https://www.readbyqxmd.com/read/28269659/evaluation-of-shoulder-joint-kinematics-and-muscle-activity-during-geared-and-standard-manual-wheelchair-mobility
#19
Omid Jahanian, Alyssa J Schnorenberg, Brooke A Slavens
Manual wheelchairs often lead to reduced independent function and an increase in shoulder pain and injuries. Geared manual wheelchairs may be a promising alternative that reduces the biomechanical demands of the shoulder needed for tasks such as propulsion on ramps and carpeted floors, while maximizing function and participation. To investigate the effects of geared manual wheelchair mobility during demanding tasks such as ramp ascent, six able-bodied subjects were evaluated in this study. Subjects were asked to propel both standard and geared manual wheelchairs on a tiled level floor and on a wheelchair ADA ramp...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28269632/in-vitro-identification-of-shoulder-joint-and-muscle-dynamics-based-on-motion-capture-and-musculoskeletal-computation
#20
Akihiko Murai, Yusuke Kawano, Ko Ayusawa, Mitsunori Tada, Noboru Matsumura, Takeo Nagura
Dynamics properties of shoulder joint and muscle are experimentally identified under different musculoskeletal conditions for a digital human model with accurate dynamics. Passive swing motions of scapula and upper limb bones in cadaveric specimen with and without muscles are measured by an optical motion capture system. External forces that are applied to the scapula bone are simultaneously measured by a force plate. The dynamics identification process consists of 3 steps: 1) identify the inertial parameters of the cadaveric specimen with and without muscles respectively, 2) identify the viscosity of the glenohumeral joint from the specimen without muscles, and 3) identify the viscosity of the shoulder muscles from the specimen with muscles and the identified joint viscosity...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
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