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https://www.readbyqxmd.com/read/28454259/intentional-marginal-resection-of-periosteal-osteosarcoma-in-combination-with-neoadjuvant-chemotherapy-a-report-of-two-cases-and-a-review-of-the-literature
#1
Yu Chen, Song-Feng Xu, Ming Xu, Xiu-Chun Yu
A wide resection of the tumor with or without chemotherapy is the treatment of choice for periosteal osteosarcoma (PO) of the extremities, however, post-operative limb function and quality of life could be compromised. The present study reports two cases of 14-year-old boys who presented with progressively enlarging masses in their right knee regions. Computed tomography and magnetic resonance imaging scans indicated a fusiform space-occupying mass encircling the bone cortex, with stippled calcification. A diagnosis of PO was suspected...
March 2017: Oncology Letters
https://www.readbyqxmd.com/read/28454185/patella-dislocation-in-children-and-adolescents
#2
Sven Höhne, Kristina Gerlach, Lars Irlenbusch, Mathias Schulz, Christian Kunze, Rainer Finke
Introduction Patellar dislocation is one of the commonest knee injuries in adolescents. Although treatment usually leads to good results, the influence of anatomical and functional factors on therapeutic strategy has been underestimated, especially in cases of recurrence. Patients and Methods The course of treatment has been analysed in 88 patients with 136 patellar dislocations. The importance of anatomical conditions was studied using X-ray and MRI findings. The treatment results were critically evaluated in comparison with current recommendations...
April 2017: Zeitschrift Für Orthopädie und Unfallchirurgie
https://www.readbyqxmd.com/read/28453357/the-diagnosis-and-management-of-mallet-finger-injuries
#3
Gregory A Lamaris, Michael K Matthew
BACKGROUND: Mallet finger is a common injury of the extensor tendon insertion causing an extension lag of the distal interphalangeal joint. METHODS: We reviewed the most current literature on the epidemiology, diagnosis, and management of mallet finger injuries focusing on the indications and outcomes of surgical intervention. RESULTS: Nonoperative management has been advocated for almost all mallet finger injuries; however, complex injuries are usually treated surgically...
May 2017: Hand: Official Journal of the American Association for Hand Surgery
https://www.readbyqxmd.com/read/28453347/drill-penetration-injury-to-extensor-tendons-a-biomechanical-analysis
#4
Jared M Mahylis, Anora K Burwell, Laura Bonneau, Lynn M Marshall, Adam J Mirarchi
BACKGROUND: Little is known about extensor tendon failure following drill injury at the time of volar plate fixation. Our goals were to analyze extensor tendon injury following simulated drill penetration, and change in tendon displacement during cyclic loading following simulated drill penetration injury. METHODS: Extensor pollicis longus (EPL) and extensor carpi radialis brevis (ECRB) tendons were harvested from 9 fresh frozen cadaveric arms. Eighteen EPL and 18 ECRB samples were created from harvested tendons...
May 2017: Hand: Official Journal of the American Association for Hand Surgery
https://www.readbyqxmd.com/read/28453346/outcomes-of-surface-replacement-proximal-interphalangeal-joint-arthroplasty-through-a-volar-approach-a-prospective-study
#5
Thomas E Trumble, Dennis J Heaton
BACKGROUND: The dorsal approach to the proximal interphalangeal (PIP) joint provides the advantage of improved visualization of the articular surface, while the disadvantage of a dorsal approach is the disruption of the central slip and extensor mechanism requiring a delay in range of motion exercises. A volar approach keeps the central slip and extensor mechanism intact, allowing for early range of motion. The goal of this study was to evaluate patient outcomes of surface replacement (SR) PIP joint arthroplasty performed through a volar approach...
May 2017: Hand: Official Journal of the American Association for Hand Surgery
https://www.readbyqxmd.com/read/28453345/absorption-dependent-negative-friction-coefficients-in-tendon-sheath-excursion
#6
Yoke-Rung Wong, Shian-Chao Tay
No abstract text is available yet for this article.
May 2017: Hand: Official Journal of the American Association for Hand Surgery
https://www.readbyqxmd.com/read/28453343/acute-isolated-flexor-tendon-laceration-associated-with-a-distal-radius-fracture
#7
J Ryan Hill, Ram K Alluri, Alidad Ghiassi
BACKGROUND: Subacute rupture of the flexor tendons secondary to distal radius fractures is well documented. Recently, accounts of flexor tendon rupture following open reduction internal fixation have been associated with volar plate fixation. However, discovery of an occult traumatic flexor tendon laceration during fixation of an acute distal radius fracture is not well described. This case indicates the importance of careful preoperative and intraoperative examination of the flexor tendons in the setting of comminuted distal radius fractures...
May 2017: Hand: Official Journal of the American Association for Hand Surgery
https://www.readbyqxmd.com/read/28453342/flexor-tendon-rupture-due-to-previously-undiagnosed-kienb%C3%A3-ck-disease-a-case-report
#8
Kenrick Turner, Nicholas N Sheppard, Samuel E Norton
BACKGROUND: Spontaneous flexor tendon rupture is rare and most common in the little finger. The pathogenesis of spontaneous tendon ruptures is unclear but may occur through attrition or mechanical abrasion over a bony prominence. Kienböck disease is avascular necrosis of the lunate, with an unknown etiology. METHODS: We present a case of spontaneous rupture of flexor digitorum profundus due to Kienböck disease, which we believe is the first recorded case of flexor tendon rupture attributable to osteonecrosis of the lunate...
May 2017: Hand: Official Journal of the American Association for Hand Surgery
https://www.readbyqxmd.com/read/28453339/the-painful-sacrifice-the-epidemiology-of-hand-injuries-during-the-holy-festivals-in-the-sultanate-of-oman-a-10-year-case-control-study
#9
Sultan Al-Shaqsi, Taimoor Al-Bulushi, Ayman Al-Salmi, Ammar Al-Kashmiri, Ali Al-Lawatti
BACKGROUND: The human hand is an important functional and sensory organ. Its complex anatomy reflects its important functional capabilities. Many Muslim countries observe the holy festivals with a traditional sacrifice of an animal in order to share the meat (basic commodity) with beloved ones. During such festivals hand injuries have been reported to increase. This study aimed to compare cases and controls of hand injuries treated at the national trauma center in the Sultanate of Oman during a 10-year time period...
May 2017: Hand: Official Journal of the American Association for Hand Surgery
https://www.readbyqxmd.com/read/28448728/does-an-injection-of-adipose-derived-mesenchymal-stem-cells-loaded-in-fibrin-glue-influence-rotator-cuff-repair-outcomes-a-clinical-and-magnetic-resonance-imaging-study
#10
Yong Sang Kim, Chang Hun Sung, Sung Hoon Chung, Sang Joon Kwak, Yong Gon Koh
BACKGROUND: The mesenchymal stem cell (MSC)-based tissue engineering approach has been developed to improve the treatment of rotator cuff tears. Hypothesis/Purpose: The purpose was to determine the effect of an injection of adipose-derived MSCs loaded in fibrin glue during arthroscopic rotator cuff repair on clinical outcomes and to evaluate its effect on structural integrity using magnetic resonance imaging (MRI). The hypothesis was that the application of adipose-derived MSCs would improve outcomes after the surgical repair of a rotator cuff tear...
April 1, 2017: American Journal of Sports Medicine
https://www.readbyqxmd.com/read/28448306/open-glenohumeral-joint-reduction-and-latissimus-dorsi-and-teres-major-tendon-transfers-for-infants-and-children-following-brachial-plexus-birth-palsy
#11
Joshua M Abzug, Scott H Kozin, Peter M Waters
Glenohumeral dysplasia can occur in brachial plexus birth palsy due to an imbalance of muscle forces. Most commonly this occurs in C5-C6 injuries where the shoulder external rotators are weak compared with the shoulder internal rotators. Treatment of the dysplasia with open reduction of the glenohumeral joint in combination with rebalancing the muscles can improve the development of the joint. Furthermore, the tendon transfer can improve shoulder function by decreasing the internal rotation forces about the shoulder while increasing the external rotation forces...
April 26, 2017: Techniques in Hand & Upper Extremity Surgery
https://www.readbyqxmd.com/read/28444753/examination-of-toxicity-and-collagen-linearity-after-the-administration-of-the-protein-cross-linker-genipin-in-equine-tendon-and-dermis-a-pilot-study
#12
M Bellefeuille, D F Peters, M Nolin, P Slusarewicz, D Telgenhoff
OBJECTIVE: Collagen cross-linking is an attractive therapeutic route aimed at supplementing natural collagen stabilisation. In this study the toxicity of the cross-linker genipin (GP) was examined in avascular (tendon) and vascular (dermis) tissue. METHODS: High doses of GP were injected intratendinously into three yearling horses and evaluated at various time points up to 30 days. A second group of three yearlings were injected into the dermis and evaluated at various time points up to 1 year...
May 2017: Australian Veterinary Journal
https://www.readbyqxmd.com/read/28444581/corr-insights-%C3%A2-hamstring-autograft-versus-patellar-tendon-autograft-for-acl-reconstruction-is-there-a-difference-in-graft-failure-rate-a-meta-analysis-of-47-613-patients
#13
Thomas J Gill
No abstract text is available yet for this article.
April 25, 2017: Clinical Orthopaedics and related Research
https://www.readbyqxmd.com/read/28444436/acute-effects-of-static-stretching-on-muscle-tendon-mechanics-of-quadriceps-and-plantar-flexor-muscles
#14
Tom Bouvier, Jules Opplert, Carole Cometti, Nicolas Babault
PURPOSE: This study aimed to determine the acute effects of static stretching on stiffness indexes of two muscle groups with a contrasting difference in muscle-tendon proportion. METHODS: Eleven active males were tested on an isokinetic dynamometer during four sessions randomly presented. Two sessions were dedicated to quadriceps and the two others to triceps surae muscles. Before and immediately after the stretching procedure (5 × 30 s), gastrocnemius medialis and rectus femoris fascicle length and myotendinous junction elongation were determined using ultrasonography...
April 25, 2017: European Journal of Applied Physiology
https://www.readbyqxmd.com/read/28444241/cervical-spine-muscle-tendon-unit-length-differences-between-neutral-and-forward-head-postures-biomechanical-study-using-human-cadaveric-specimens
#15
Saeed Khayatzadeh, Olivia A Kalmanson, Dale Schuit, Robert M Havey, Leonard I Voronov, Alexander J Ghanayem, Avinash G Patwardhan
Background: Forward Head Posture (FHP) may be associated with neck pain and poor health-related quality of life. Literature describes only qualitative muscle length changes associated with FHP. Objective: To quantify how muscle-tendon unit lengths are altered when human cadaveric specimens are placed in alignments representing different severities of FHP. Design: Biomechanical study using 13 fresh-frozen cadaveric cervical spine specimens (Occiput-T1, 54±15yrs)...
April 21, 2017: Physical Therapy
https://www.readbyqxmd.com/read/28443250/pectoralis-major-tear-an-unusual-and-rare-presentation
#16
Vikram V Kadu, K A Saindane, Ninad Godghate, Neha Godghate
INTRODUCTION: The pectoralis major is a very powerful muscle that forms the chest prominence and. It moves the shoulder forward and across your chest. It is best known as the muscle that you develop with the bench press exercise in gymnasium. The pectoralis major attaches to the humerus bone and is divided into two parts. The upper part is known as the "clavicular head" and the lower part the "sternal head," based on their origins from the clavicle and sternal bones, respectively. Ruptures of the pectoralis major muscle are becoming more common due to the increase in power sports weight training...
September 2016: Journal of Orthopaedic Case Reports
https://www.readbyqxmd.com/read/28442856/functional-outcome-of-fixation-of-complex-intra-articular-distal-radius-fractures-with-a-variable-angle-distal-radius-volar-rim-plate
#17
M Spiteri, W Ng, J Matthews, D Power
Aim To evaluate the outcome of these complex fractures using a volar approach and the DePuy Synthes variable-angle 2.4-mm distal radius rim plate. This plate is precontoured to the volar rim for placement distal to the watershed line allowing purchase of the rim fragment of the lunate facet. Its low profile and smooth edges are designed to minimize flexor tendon irritation. Method We report on a consecutive series of far distal AO-23B3 and AO-23C3 fractures treated using this plate in a tertiary hand center between November 2011 and May 2014...
April 2017: Journal of Hand and Microsurgery
https://www.readbyqxmd.com/read/28442701/a-case-of-trigger-point-injection-induced-hypokalemic-paralysis
#18
Paolo K Soriano, Mukul Bhattarai, Carrie N Vogler, Tamer H Hudali
BACKGROUND Trigger-point injection (TPI) therapy is an effective modality for symptomatic treatment of myofascial pain. Serious adverse effects are rarely observed. In this report, we present the case of a 39-year-old man who experienced severe, transient hypokalemic paralysis in the context of TPI therapy with methylprednisolone, bupivacaine, and epinephrine. He was successfully treated with electrolyte replacement in a closely monitored setting. CASE REPORT A 39-year-old man with no past medical history except for chronic left hip pain from a work-related injury received a TPI with methylprednisolone and bupivacaine...
April 26, 2017: American Journal of Case Reports
https://www.readbyqxmd.com/read/28442457/a-pseudotumour-of-the-thigh-tensor-fasciae-latae-muscle-hypertrophy-due-to-an-underlying-abductor-tendon-tear
#19
Ruben Petrus Johannes Meijer, Jorrit Jasper, Barbara Snoeker, Joris Jansen
We present a patient with an asymptomatic unilateral swelling of the anterolateral thigh. MRI showed hypertrophy of the tensor fasciae latae muscle due to an underlying gluteus minimus tendon tear.Abductor tendon tears can present with swelling of the thigh due to secondary tensor fasciae latae muscle hypertrophy.
April 24, 2017: BMJ Case Reports
https://www.readbyqxmd.com/read/28442144/a-proposal-to-evaluate-the-fibers-break-probability-in-ligaments-and-tendons
#20
Marco Bontempi
Understanding the yield and failure mechanisms of ligaments and tendons is important to have a deeper knowledge of their structure and function. Evaluating what are the limits of the human body is also important to prevent injuries in workers, in athletes and the elderly. The tissue yield mechanism was analyzed by modifying and extending a probabilistic model of collagen bundles. Since not usable experimental data are available in the literature, the model and the method were tested using Monte Carlo simulations...
April 13, 2017: Journal of Biomechanics
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