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https://www.readbyqxmd.com/read/28441468/histological-study-of-white-rhinoceros-integument
#1
Jeffrey H Plochocki, Saul Ruiz, José R Rodriguez-Sosa, Margaret I Hall
In this study, we report findings from a microscopic analysis of the white rhinoceros (Ceratotherium simum) integumentary ultrastructure. Skin samples from the cheek, shoulder, flank and rump were taken from a 46-year-old female southern white rhinoceros and examined using H&E and elastic histological stains. The epidermis was thickest in the flank (1.003 mm) followed by the rump, cheek and shoulder. The stratum corneum comprised more than half the epidermal thickness. Numerous melanin granules were found in the basal and spinosum layers...
2017: PloS One
https://www.readbyqxmd.com/read/28441418/relationship-between-acromial-morphological-variation-and-subacromial-impingement-a-three-dimensional-analysis
#2
Xinyu Li, Wei Xu, Ning Hu, Xi Liang, Wei Huang, Dianming Jiang, Hong Chen
PURPOSE: To evaluate the association of acromial morphology and subacromial impingement. METHODS: Bilateral shoulder computed tomography was performed in 138 patients who received shoulder arthroscopy. Measured parameters included: acromial tilt (AT), modified acromial tilt (mAT), acromial slope (AS), acromiohumeral interval (AHI), lateral acromial angle (LAA), acromial index (AI), critical shoulder angle (CSA), acromial anterior protrusion (AAP), and acromial inferior protrusion (AIP)...
2017: PloS One
https://www.readbyqxmd.com/read/28441305/step-by-step-technique-for-segmental-reconstruction-of-reverse-hill-sachs-lesions-using-homologous-osteochondral-allograft
#3
Hassanin Alkaduhimi, Michel P J van den Bekerom, Derek F P van Deurzen
Posterior shoulder dislocations are accompanied by high forces and can result in an anteromedial humeral head impression fracture called a reverse Hill-Sachs lesion. This reverse Hill-Sachs lesion can result in serious complications including posttraumatic osteoarthritis, posterior dislocations, osteonecrosis, persistent joint stiffness, and loss of shoulder function. Treatment is challenging and depends on the amount of bone loss. Several techniques have been reported to describe the surgical treatment of lesions larger than 20%...
April 24, 2017: Techniques in Hand & Upper Extremity Surgery
https://www.readbyqxmd.com/read/28441177/right-hip-and-bilateral-shoulder-capsulitis-in-an-hiv-infected-individual-treated-with-elvitegravir-and-cobicistat
#4
Omar Al Tabaa, Victor Audren, Emma Hayton, Edouard Pertuiset, Laurent Blum
No abstract text is available yet for this article.
May 15, 2017: AIDS
https://www.readbyqxmd.com/read/28440711/carrying-their-own-weight-dogs-perceive-changing-affordances-for-reaching
#5
Jeffrey B Wagman, Matthew D Langley, Valeri Farmer-Dougan
Choices about when to transition between two modes of behaviour are determined by the fit between action capabilities and environmental properties. However, such transitions typically occur not at the absolute limits of action capabilities but rather based on the relative stability of each mode. People transition from an arm-only to an arm-plus-torso-reach, not when object distance exceeds arm length but when the stability of reaching with the arm-plus-torso exceeds that of reaching with the arm only. To the extent that perception is supported by detection of invariant stimulation patterns, such a transition ought to reflect both the fit between action capabilities and environmental properties and the relative stability of modes regardless of species...
April 25, 2017: Quarterly Journal of Experimental Psychology: QJEP
https://www.readbyqxmd.com/read/28439938/intramuscular-fat-infiltration-evaluated-by-magnetic-resonance-imaging-predicts-the-extensibility-of-the-supraspinatus-muscle
#6
Hugo Giambini, Taku Hatta, Gorny R Krzysztof, Per Widholm, Anette Karlsson, Olof D Leinhard, Mark C Adkins, Chunfeng Zhao, Kai-Nan An
INTRODUCTION: Rotator cuff (RC) tears result in muscle atrophy and fat infiltration within the RC muscles. An estimation of muscle quality and deformation, or extensibility, is useful in selecting the most appropriate surgical procedure. We determined if non-invasive quantitative assessment of intramuscular fat using MRI could be used to predict extensibility of the supraspinatus (SSP) muscle. METHODS: Seventeen cadaveric shoulders were imaged to assess intramuscular fat infiltration...
April 25, 2017: Muscle & Nerve
https://www.readbyqxmd.com/read/28439819/lengthening-of-the-humerus-with-intramedullary-lengthening-nails-preliminary-report
#7
Julian Fürmetz, Søren Kold, Nikola Schuster, Florian Wolf, Peter H Thaller
Distraction osteogenesis of the humerus with fully implantable lengthening is now possible since the diameter of the available nails was reduced to 10 mm and below. We report on the first intramedullary lengthening cases of the humerus with two different lengthening devices (FITBONE and PRECICE). Two different approaches and implantation techniques were used. We retrospectively reviewed clinical and radiographic data and pointed out results, pitfalls and complications of the procedure. Four adult patients with relevant length discrepancy of the humerus were treated with fully implantable systems in two centers between 2012 and 2015...
April 24, 2017: Strategies in Trauma and Limb Reconstruction
https://www.readbyqxmd.com/read/28438383/remitting-seronegative-symmetrical-synovitis-with-pitting-edema-rs3pe-syndrome-induced-by-nivolumab
#8
Marie-Léa Gauci, Barouyr Baroudjian, Pauline Laly, Isabelle Madelaine, Laetitia Da Meda, Laetitia Vercellino, Martine Bagot, Frédéric Lioté, Cécile Pages, Céleste Lebbé
INTRODUCTION: A new articular syndrome described as immunrelated side effect of immunotherapy: PD-1 inhibitors have revolutionized the treatment of advanced melanoma but are responsible for immune-related toxicity. We report a case of remitting seronegative symetrical synovitis with pitting edema (RS3PE) syndrome induced by nivolumab. CASE REPORT: A 80 year-old man with stage IV BRAF-wild type and NRAS exon 2-mutated melanoma was treated first line by nivolumab 3mg/kg every 2 weeks...
March 8, 2017: Seminars in Arthritis and Rheumatism
https://www.readbyqxmd.com/read/28438196/examiner-effect-on-the-objective-structured-clinical-exam-a-study-at-five-medical-schools
#9
Iris Schleicher, Karsten Leitner, Jana Juenger, Andreas Moeltner, Miriam Ruesseler, Bernd Bender, Jasmina Sterz, Karl-Friedrich Schuettler, Sarah Koenig, Joachim Gerhard Kreuder
BACKGROUND: The Objective Structured Clinical Examination (OSCE) is increasingly used at medical schools to assess practical competencies. To compare the outcomes of students at different medical schools, we introduced standardized OSCE stations with identical checklists. METHODS: We investigated examiner bias at standardized OSCE stations for knee- and shoulder-joint examinations, which were implemented into the surgical OSCE at five different medical schools. The checklists for the assessment consisted of part A for knowledge and performance of the skill and part B for communication and interaction with the patient...
April 24, 2017: BMC Medical Education
https://www.readbyqxmd.com/read/28437747/concurrent-evaluation-of-personal-damaging-and-beneficial-uv-exposures-over-an-extended-period
#10
L K Wainwright, A V Parisi, N J Downs
Personal exposure to solar ultraviolet radiation (UVR) is acknowledged as having both positive and negative effects on human health. This study aimed to measure concurrently the personal erythemal UV, UVA and vitamin D effective exposures of participants in each season of a year. Participants were all indoor office workers located at two different sites less than 6.5 km apart at the sub-tropical location of Toowoomba (27°33'S 151°55'E). The subjects wore a combined dosimeter badge horizontally on the shoulder for a minimum of one week in each season; this badge used 8-methoxypsoralen film to record the UVA waveband and polyphenylene oxide film for the erythemal and the vitamin D effective UV wavebands...
April 13, 2017: Journal of Photochemistry and Photobiology. B, Biology
https://www.readbyqxmd.com/read/28437503/subscapularis-tenotomy-versus-lesser-tuberosity-osteotomy-for-total-shoulder-arthroplasty-a-systematic-review
#11
Philip K Louie, David M Levy, Bernard R Bach, Gregory P Nicholson, Anthony A Romeo
Subscapularis tenotomy (ST) has been the standard method of mobilizing the subscapularis during the approach to a total shoulder arthroplasty (TSA). Recently, lesser tuberosity osteotomy (LTO), which avoids subscapularis complications, has gained in popularity. We performed a systematic review to elucidate any differences in clinical or radiographic outcomes between ST and LTO. Using PRISMA (Preferred Reporting Items for Systematic Reviews and Meta-Analyses) guidelines, we identified clinical and/or radiographic TSA studies with minimum mean 2-year follow-up and level I to IV evidence...
March 2017: American Journal of Orthopedics
https://www.readbyqxmd.com/read/28437496/novel-solution-for-massive-glenoid-defects-in-shoulder-arthroplasty-a-patient-specific-glenoid-vault-reconstruction-system
#12
David M Dines, Lawrence Gulotta, Edward V Craig, Joshua S Dines
Complex glenoid deformities present the most difficult challenges in shoulder arthroplasty. These deformities may be caused by severe degenerative or congenital deformity, posttraumatic anatomy, tumor, or, in most cases, bone loss after glenoid failure in anatomical total shoulder arthroplasty. Methods of treating severe bone loss have included inlay and onlay bone-graft options with augmented fixation and, in severe cases, salvage hemiarthroplasty with limited goal expectations. Unfortunately, none of these methods has provided consistently satisfactory reproducible results...
March 2017: American Journal of Orthopedics
https://www.readbyqxmd.com/read/28437337/axial-plane-deformity-of-the-shoulder-in-adolescent-idiopathic-scoliosis
#13
Venugopal K Menon, Naveen Tahasildar, Haroon M Pillay, Anbuselvam M
STUDY DESIGN: Prospective observational study. OBJECTIVE: To study axial plane deformation of the shoulder in adolescent idiopathic scoliosis (AIS) and try to correlate it with curve type and surgical correction. SUMMARY OF BACKGROUND DATA: It is established that AIS is a 3-dimensional deformity. The rib hump is the most common manifestation of axial plane deformations; the least common manifestation seems to be upper trunk and shoulder rotation, which has been hitherto undescribed...
May 2017: Clinical Spine Surgery
https://www.readbyqxmd.com/read/28436039/nutrient-retention-values-and-cooking-yield-factors-for-three-south-african-lamb-and-mutton-cuts
#14
Salomina M van Heerden, Phillip E Strydom
BACKGROUND: Nutrient content of raw and cooked foods is important for formulation healthy diets. The retention of nutrients during cooking can be influenced by various factors including animal age, carcass characteristics and cooking method and these factors are often unique to specific countries. We studied the effects of animal age (lamb and mutton), carcass cut (shoulder, loin and leg) combined with cooking method (moist-heat and dry-heat) on yield and nutrient retention of selected nutrients of South African sheep carcasses...
April 23, 2017: Journal of the Science of Food and Agriculture
https://www.readbyqxmd.com/read/28435581/bilateral-asymmetrical-fracture-dislocation-of-shoulder-with-rare-combination-of-injuries-after-epileptic-seizure-a-case-report
#15
A Sharma, S Jindal, M S Narula, S Garg, A Sethi
The incidence of bilateral gleno-humeral joint dislocation is rare, is almost always posterior and is usually caused by sports injuries, epileptic seizures, electrical shock, or electroconvulsive therapy. Bilateral fracture-dislocation is even rarer, with a few cases reported in the literature. We report an unusual case with dislocation of the both glenohumeral joints in opposite direction after a seizure episode, with fracture of greater tuberosity on one side and of the lesser tuberosity on the contralateral side...
March 2017: Malaysian Orthopaedic Journal
https://www.readbyqxmd.com/read/28435576/a-new-technique-for-solving-tightrope-cutout-during-acromioclavicular-joint-fixation-a-case-report
#16
B W Ng, A F Abdullah, S Nadarajah
Acromioclavicular joint (ACJ) dissociation is one of the common injuries affecting adults. The stability of ACJ largely depends on the integrity of acromioclavicular ligament, coracoclavicular ligament, capsule, trapezius muscle and deltoid muscle. The injury has been classified by Rockwood into six types and treatment options can be guided by the classification. TightRope fixation is one of the many surgical procedures available to address acromioclavicular joint separation. It consists of tensioning of a no...
March 2017: Malaysian Orthopaedic Journal
https://www.readbyqxmd.com/read/28435572/does-excision-of-heterotopic-ossification-of-the-elbow-result-in-satisfactory-patient-rated-outcomes
#17
K N Sandeep, G Suresh, B Gopisankar, N Abhishek, A Sujiv
INTRODUCTION: Treatment of heterotopic ossification (HO) of the elbow is challenging and fraught with complications. Patients who sustain direct trauma to the elbow joint, the central nervous system, and thermal burns are at increased risk for development of HO. There is a paucity of studies and reports on patient's self-evaluation after the excision of the heterotopic ossification. MATERIALS AND METHODS: This retrospective study assessed outcomes after excision of heterotopic ossification around the elbow in a cohort of ten patients operated from 2012 to 2015...
March 2017: Malaysian Orthopaedic Journal
https://www.readbyqxmd.com/read/28435335/what-is-the-effect-of-a-shoulder-strengthening-program-to-prevent-shoulder-pain-among-junior-female-team-handball-players
#18
Maria Sommervold, Håvard Østerås
BACKGROUND: Excessively high stresses are applied to the shoulder joint of handball players, mainly caused by overhead throwing. Shoulder pain is a significant problem among junior female team handball players and both male and female top-level team handball players in Norway. METHOD: A randomized selection was performed among the best female junior teams (J 16) in the Trøndelag region of Norway in the 2014-2015 season. Three teams were randomized to the intervention group and three teams to the control group...
2017: Open Access Journal of Sports Medicine
https://www.readbyqxmd.com/read/28434911/does-quantity-ensure-quality-standardized-osce-stations-for-outcome-oriented-evaluation-of-practical-skills-at-different-medical-faculties
#19
Iris Schleicher, Karsten Leitner, Jana Juenger, Andreas Moeltner, Miriam Ruesseler, Bernd Bender, Jasmina Sterz, Tina Stibane, Sarah Koenig, Susanne Frankenhauser, Joachim Gerhard Kreuder
BACKGROUND: Practical skills are often assessed using Objective Structured Clinical Skill Exams (OSCE). Nevertheless, in Germany, interchange and agreement between different medical faculties or a general agreement on the minimum standard for passing is lacking. METHODS: We developed standardized OSCE-stations for assessing structured clinical examination of knee and shoulder joint with identical checklists and evaluation standards. These were implemented into the OSCE-course at five different medical faculties...
April 20, 2017: Annals of Anatomy, Anatomischer Anzeiger: Official Organ of the Anatomische Gesellschaft
https://www.readbyqxmd.com/read/28434847/mri-before-radiography-for-patients-with-new-shoulder-conditions
#20
Kirstin M Small, Frank J Rybicki, Lindsay R Miller, Stephen D Daniels, Laurence D Higgins
PURPOSE: To assess the patterns of Appropriate Criteria application among orthopedic specialists and other fields of medicine for use of MRI and radiography and the subsequent necessity for surgical intervention. METHODS: The hospital electronic medical record was used to identify all shoulder MRI studies at a single large urban teaching hospital between January 2, 2011, and June 30, 2011. For each study, variables collected included ordering department, patient age, patient gender, patient's self-reported race/ethnicity, whether the patient obtained surgery for an issue related to the MRI diagnosis, the type of MRI ordered, the date of pain onset, the date of x-ray (if any), and the date of the MRI...
April 20, 2017: Journal of the American College of Radiology: JACR
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