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https://www.readbyqxmd.com/read/28088244/study-of-the-variability-of-scapular-inclination-and-the-glenoid-version-considerations-for-preoperative-planning-clinical-radiological-study
#1
Petr Fulin, Martin Kysilko, David Pokorny, Radek Padr, Nikola Kasprikova, Ivan Landor, Antonin Sosna
BACKGROUND: Preoperative planning with the aid of imaging methods is a principal factor in successful surgery on the shoulder. This work aims to evaluate the variability of glenoid version, spiralling twist and scapular inclination in relation to the frontal axis. Studies focusing on measuring the variability of scapular inclination in the standardised rest position are lacking in the literature. METHODS: We evaluated 104 CT scans of the shoulder. We measured the glenoid version with respect to the scapular axis at three levels...
January 14, 2017: BMC Musculoskeletal Disorders
https://www.readbyqxmd.com/read/28087211/the-effect-of-bone-growth-onto-massive-prostheses-collars-in-protecting-the-implant-from-fracture
#2
Paul Fromme, Gordon W Blunn, William J Aston, Tasneem Abdoola, Jacob Koris, Melanie J Coathup
Limb-sparing distal femoral endoprotheses used in cancer patients have a high risk of aseptic loosening. It had been reported that young adolescent patients have a higher rate of loosening and fatigue fracture of intramedullary stems because the implant becomes undersized as patients grow. Extracortical bone growth into the grooved hydroxyapatite-coated collar had been shown to reduce failure rates. The stresses in the implant and femur have been calculated from Finite Element models for different stages of bone growth onto the collar...
January 10, 2017: Medical Engineering & Physics
https://www.readbyqxmd.com/read/28087166/future-surgery-after-revision-shoulder-arthroplasty-the-impact-of-unexpected-positive-cultures
#3
Eric M Padegimas, Cassandra Lawrence, Alexa C Narzikul, Benjamin M Zmistowski, Joseph A Abboud, Gerald R Williams, Surena Namdari
BACKGROUND: The clinical implications and treatment of unexpected positive cultures (UPCs) in revision shoulder arthroplasty are not well defined. The purpose of this study was to describe results of patients with and without UPCs after revision shoulder arthroplasty. METHODS: A single institutional database was used to retrospectively identify all revision shoulder arthroplasties performed between January 1, 2011, and December 31, 2013. Patients with preoperative suspicion of infection were excluded...
January 10, 2017: Journal of Shoulder and Elbow Surgery
https://www.readbyqxmd.com/read/28087164/anatomic-study-and-electromyographic-analysis-of-the-teres-minor-muscle
#4
Junichiro Hamada, Akimoto Nimura, Kunio Yoshizaki, Keiichi Akita
BACKGROUND: The teres minor muscle is a focused topic on the treatment of massive rotator cuff tears and reverse total shoulder arthroplasty. Its precise anatomy and function have not been completely investigated. The purposes of this study were to anatomically investigate the muscle and analyze electromyographic (EMG) activities during shoulder motion. METHODS: This anatomic study used 20 shoulders from deceased donors (mean age, 75.0 years). EMG data were recorded from 10 healthy volunteers (mean age, 21...
January 10, 2017: Journal of Shoulder and Elbow Surgery
https://www.readbyqxmd.com/read/28087089/point-of-care-ultrasound-diagnosis-of-posterior-sternoclavicular-joint-dislocation
#5
Rachel R Bengtzen, Ryan C Petering
BACKGROUND: Posterior sternoclavicular dislocations can be challenging diagnostically, as traumatic force often happens to the lateral shoulder rather than directly to the sternoclavicular joint. Shoulder radiographs do not illustrate the sternoclavicular joint well, and can miss the diagnosis. This injury, however, has the potential for life-threatening complications due to proximity of mediastinal structures that might also be injured. CASE REPORT: The following case illustrates a delayed diagnosis of posterior sternoclavicular dislocation...
January 10, 2017: Journal of Emergency Medicine
https://www.readbyqxmd.com/read/28086945/complete-deltoid-resection-in-early-childhood-without-muscle-transfer-results-in-normal-shoulder-function-at-long-term-follow-up-a-case-report
#6
Annie Arteau, Franziska Seeli, Bruno Fuchs
BACKGROUND: Musculoskeletal tumors involving the deltoid muscle and necessitating its complete resection are rare. The function after complete deltoid resection is reported to be limited, and several authors consider muscle transfer to improve shoulder motion. However, it still remains unclear whether such transfer adds function. To the best of our knowledge, all reports on complete deltoid resection refer to adult patients, and it is unknown what function results after deltoid resection in childhood...
January 14, 2017: Journal of Medical Case Reports
https://www.readbyqxmd.com/read/28086879/validity-evidence-for-two-objective-structured-clinical-examination-stations-to-evaluate-core-skills-of-the-shoulder-and-knee-assessment
#7
Michael J Battistone, Andrea M Barker, J Peter Beck, Robert Z Tashjian, Grant W Cannon
BACKGROUND: We developed two objective structured clinical examinations (OSCEs) to educate and evaluate trainees in the evaluation and management of shoulder and knee pain. Our objective was to examine the evidence for validity of these OSCEs. METHODS: A multidisciplinary team of content experts developed checklists of exam maneuvers and criteria to guide rater observations. Content was proposed by faculty, supplemented by literature review, and finalized using a Delphi process...
January 13, 2017: BMC Medical Education
https://www.readbyqxmd.com/read/28079945/systematic-review-of-site-distribution-of-bone-metastases-in-differentiated-thyroid-cancer
#8
REVIEW
Marcela Osorio, Sami P Moubayed, Henry Su, Mark L Urken
BACKGROUND: Thyroid cancer is the fastest growing cancer in the United States. A small portion of differentiated thyroid cancers (DTCs; 2% to 13%) develop bone metastases, which can decrease a patient's survival rate by more than 60%. METHODS: A systematic literature search of studies, including patients with DTC with bone metastases, was conducted by following Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) guidelines. A case series of patients with DTC diagnosed with bone metastases seen at our institution was also included...
January 11, 2017: Head & Neck
https://www.readbyqxmd.com/read/28079903/introduction-standing-on-each-other-s-shoulders
#9
Tina L Cheng, Carine Tarazi, Eleanor Molloy, Cynthia F Bearer
No abstract text is available yet for this article.
January 2017: Pediatric Research
https://www.readbyqxmd.com/read/28079744/endoscopic-woodward-procedure-for-sprengel-deformity-case-report
#10
Francisco Soldado, Sergi Barrera-Ochoa, Pedro Domenech-Fernandez, Josep M Bergua-Domingo, Paula Diaz-Gallardo, Jorge Knorr
: Sprengel deformity (SD) results in a limitation of movement of the shoulder girdle and produces an esthetic defect. Our aim is to assess the feasibility and advantages of a minimally invasive endoscopic approach for SD correction. A 4-year-old boy with a Cavendish grade III right SD. The patient underwent an endoscopic Woodward procedure with access through two small incisions at the level of the upper and lower angles of the scapula. Near-symmetrical shoulder elevation was achieved, with an excellent cosmetic result...
January 10, 2017: Journal of Pediatric Orthopedics. Part B
https://www.readbyqxmd.com/read/28079648/acute-response-of-the-infraspinatus-and-biceps-tendons-to-pitching-in-youth-baseball
#11
Adam Popchak, Nathan Hogaboom, Dharmesh Vyas, John Abt, Anthony Delitto, James J Irrgang, Michael Boninger
PURPOSE: Youth baseball frequently results in repetitive strain injuries. Quantitative ultrasound allows real-time imaging with the ability to identify acute markers of tendon change. The study objective was to determine acute quantitative ultrasound changes in the long head of the biceps and infraspinatus tendons of the throwing and non-throwing shoulders during a pitching performance. We hypothesized the tendons of the pitching arm would exhibit an increased width and decreased echogenicity after pitching and that tendons of the non-pitching arm would not demonstrate such changes...
January 11, 2017: Medicine and Science in Sports and Exercise
https://www.readbyqxmd.com/read/28078874/tendonitis-of-the-rotator-cuff-treated-with-extracorporeal-shock-wave-therapy-radiographic-monitoring-to-identify-prognostic-factors-for-disintegration
#12
A Notarnicola, L Moretti, G Maccagnano, S Tafuri, B Moretti
Extracorporeal shock wave therapy (ESWT) is widely used for calcific tendonitis of the shoulder. The initial rationale for this therapy was to break the calcification, but this effect does not always occur. To date, we do not know how calcifications evolve or why they may be less responsive to the action of the shock waves. One hundred and seventy-four shoulders with calcific tendinitis were prospectively evaluated before and after ESWT, using the radiographic classifications according to Gartner and Heyer, to Bosworth and to Molè...
October 2016: Journal of Biological Regulators and Homeostatic Agents
https://www.readbyqxmd.com/read/28078542/glenoid-baseplate-fixation-using-hybrid-configurations-of-locked-and-unlocked-peripheral-screws
#13
Nathan T Formaini, Nathan G Everding, Jonathan C Levy, Brandon G Santoni, Aniruddh N Nayak, Cooper Wilson
BACKGROUND: The use of peripheral locked screws has reduced glenoid baseplate failure rates in reverse shoulder arthroplasty. However, situations may arise when one or more non-locked screws may be preferred. We aimed to determine if different combinations of locked and non-locked screws significantly alter acute glenoid baseplate fixation in a laboratory setting. MATERIALS AND METHODS: Twenty-eight polyurethane trabecular bone surrogates were instrumented with a center screw-type glenoid baseplate and fixated with various combinations of peripheral locked and non-locked screws (1-, 2-, 3- and 4-locked con)...
January 11, 2017: Journal of Orthopaedics and Traumatology: Official Journal of the Italian Society of Orthopaedics and Traumatology
https://www.readbyqxmd.com/read/28078196/prosthetic-jamming-terminal-device-a-case-study-of-untethered-soft-robotics
#14
Nadia Cheng, John Amend, Todd Farrell, Debra Latour, Carlos Martinez, Jen Johansson, Anthony McNicoll, Marek Wartenberg, Samuel Naseef, William Hanson, William Culley
This article illuminates the major and often overlooked challenge of untethering soft robotic systems through the context of recent work, in which soft robotic gripper technology enabled by jamming of granular media was applied to a prosthetic jamming terminal device (PJTD). The PJTD's technical and market feasibility was evaluated in a pilot study with two upper-limb amputees. A PJTD prototype was tested against a commercial device (Motion Control electric terminal service with a one degree-of-freedom pinching mechanism) using two existing hand function tests: the first quantified the device's speed in picking and placing small blocks and the second evaluated a person's ability to perform activities of daily living (ADLs)...
December 1, 2016: Soft Robotics
https://www.readbyqxmd.com/read/28076692/the-effects-of-ultrasound-guided-corticosteroid-injection-for-the-treatment-of-hemiplegic-shoulder-pain-on-depression-and-anxiety-in-patients-with-chronic-stroke
#15
Min Cheol Chang
PURPOSE: We attempted to investigate whether ultrasound (US)-guided intraarticular or subacromial bursa corticosteroid injections can potentially influence the severity of depression and anxiety in patients with chronic stroke with hemiplegic shoulder pain (HSP). METHODS: Thirty patients with chronic stroke with HSP received US-guided corticosteroid injections. Numeric rating scale (NRS) scores, passive shoulder range of motion (ROM), Beck Depression Inventory (BDI) scores, and Spielberger State-Trait Anxiety Inventory (STAI) scores were evaluated before the injection, and one and two months after the injection...
January 11, 2017: International Journal of Neuroscience
https://www.readbyqxmd.com/read/28076600/use-of-cuff-tear-arthroplasty-head-prosthesis-for-rotator-cuff-arthropathy-treatment-in-elderly-patients-with-comorbidities
#16
Cassiano Diniz Carvalho, Carlos Vicente Andreoli, Alberto de Castro Pochini, Benno Ejnisman
Objective: To evaluate the clinical and functional behavior of patients undergoing cuff tear arthroplasty at different stages of the disease. Methods: Cuff tear arthroplasty hemiarthroplasties were performed in 34 patients with rotator cuff arthropathy and associated comorbidities, classified according to Seebauer. The mean age was 76.3 years, and the sample comprised 23 females (67.6%) and 11 males (32.4%). The mean follow-up period was 21.7 months, and evaluations were performed using the Visual Analog Scale for pain and the Constant scale...
October 2016: Einstein
https://www.readbyqxmd.com/read/28075438/quantitative-anatomical-differences-in-the-shoulder
#17
Usman Ali Mohammed Syed, Daniel E Davis, Jia-Wei Ko, Brian K Lee, Daniel Huttman, Adam Seidl, Carl Deirmengian, Joseph A Abboud
This study explored the radiographic and anatomical differences in normal shoulders between men and women, as well as factors such as race, height, weight, and age. A total of 205 patients with documented normal anatomical radiographs comprised the study population. Five fellowship-trained orthopedic surgeon reviewers measured head diameter, humeral head size, head to tuberosity distance, greater tuberosity width, neck-shaft angle, surface-arc angle, glenoid neck length, and distance from the lateral acromion process to the greater tuberosity on anteroposterior radiographs with the shoulder in external rotation...
January 11, 2017: Orthopedics
https://www.readbyqxmd.com/read/28075248/evaluation-of-vibrant-muscles-over-shoulder-region-among-workers-of-the-hand-screen-printing-industry
#18
Subramaniam Shankar, Raju Naveenkumar, Jeganathan Karthick, Periyasamy Mohankumar
This study focuses on the evaluation of the muscle activities associated with shoulder pain among workers of the hand screen printing (HSP) industry. Activities of three major muscles which showed higher muscle activity for a HSP job were observed for fatigue using surface electromyography (SEMG). The anatomical sites were chosen on the basis of a statistical survey and visual inspection conducted before the experiment. Activities of the deltoid, teres major and infraspinatus were recorded using SEMG and the nature of muscle activities was studied for about 50 m of cloth printing...
January 11, 2017: International Journal of Occupational Safety and Ergonomics: JOSE
https://www.readbyqxmd.com/read/28074775/axillary-artery-transection-and-bilateral-pulmonary-embolism-after-anterior-shoulder-dislocation-case-report
#19
Betty Leclerc, François Loisel, Maxime Ferrier, Mazen Al Sayed, Simon Rinckenbach, Laurent Obert
INTRODUCTION: Anterior shoulder dislocation can be associated with vascular and neurological complications. However, axillary artery injury associated with shoulder dislocation is rare and extremely rare without bone fracture. An early diagnosis of these complications allows predicting long-term functional outcomes. METHODS: This article reports the case of a 66-year-old patient who presented an anterior shoulder dislocation after a ski fall without any neurological dysfunction or pulse deficit...
2017: SICOT-J
https://www.readbyqxmd.com/read/28074588/care-under-the-influence
#20
Joseph J Fins, Samantha F Knowlton
A forty-year-old man is brought to the emergency room by his wife at five in the morning, two hours after he fell down the stairs at home, hitting his head and injuring his arm. He tells the ER physician that he got up to get a drink of water and tripped in the dark. His speech is slurred, and he smells strongly of alcohol. Lab results reveal elevated liver enzymes, and his blood alcohol level is 0.1. His medical history is unremarkable. When asked about his alcohol consumption, he says he usually has one or two drinks a night with dinner but that he drinks more on holidays and special occasions...
January 2017: Hastings Center Report
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