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https://www.readbyqxmd.com/read/27932695/posture-dependent-corticomotor-excitability-differs-between-the-transferred-biceps-in-individuals-with-tetraplegia-and-the-biceps-of-nonimpaired-individuals
#1
Carrie L Peterson, Lynn M Rogers, Michael S Bednar, Anne M Bryden, Michael W Keith, Eric J Perreault, Wendy M Murray
Background Following biceps transfer to enable elbow extension in individuals with tetraplegia, motor re-education may be facilitated by greater corticomotor excitability. Arm posture modulates corticomotor excitability of the nonimpaired biceps. If arm posture also modulates excitability of the transferred biceps, posture may aid in motor re-education. Objective Our objective was to determine whether multi-joint arm posture affects corticomotor excitability of the transferred biceps similar to the nonimpaired biceps...
December 8, 2016: Neurorehabilitation and Neural Repair
https://www.readbyqxmd.com/read/27932679/tendon-collagen-synthesis-declines-with-immobilization-in-elderly-humans-no-effect-of-anti-inflammatory-medication
#2
Kasper Dideriksen, Anders Ploug Boesen, Søren Reitelseder, Christian Couppe, Rene Brüggebusch Svensson, Peter Schjerling, S Peter Magnusson, Lars Holm, Michael Kjaer
BACKGROUND: Non-steroidal anti-inflammatory drugs (NSAID) are used as pain killers during periods of unloading caused by traumatic occurrences or diseases. However, it is unknown how the tendon protein turnover and mechanical properties responds to unloading and subsequent loading in elderly humans, and especially whether NSAIDs affect tendon adaptation during such periods. Thus, we studied the influence of NSAID upon the human patellar tendon protein synthesis and mechanical properties during immobilization and subsequent rehabilitating resistance training...
December 8, 2016: Journal of Applied Physiology
https://www.readbyqxmd.com/read/27932678/adjustments-with-running-speed-reveal-neuromuscular-adaptations-during-landing-associated-with-high-mileage-running-training
#3
Jasper Verheul, Adam C Clansey, Mark J Lake
It remains to be determined whether running training influences the amplitude of lower limb muscle activations prior to and during the first half of stance, and whether such changes are associated with joint stiffness regulation and usage of stored energy from tendons. Therefore, the aim of this study was to investigate neuromuscular and movement adaptations before and during landing in response to running training across a range of speeds. Two groups of high mileage (HM; >45 km/wk, n=13) and low mileage (LM; <15 km/wk, n=13) runners ran at four speeds (2...
December 8, 2016: Journal of Applied Physiology
https://www.readbyqxmd.com/read/27932401/medium-to-long-term-outcomes-of-anatomical-reconstruction-of-the-radioulnar-ligament-to-the-ulnar-fovea
#4
T Nakamura, K Abe, M Nishiwaki, T Iwamoto, K Sato
: We examined the medium- to long-term outcome of the original reconstruction technique of the radioulnar ligament using a half-slip of the extensor carpi ulnaris tendon for chronic foveal avulsion of the triangular fibrocartilage complex. We treated 37 wrists in 36 patients with a minimum follow-up of 5 years. Of 36 patients, 12 had more than 10 years follow-up. At final follow-up, 30 patients (31 wrists) reported no pain, five patients (five wrists) reported mild occasional pain and one patient reported severe persistent pain...
December 8, 2016: Journal of Hand Surgery, European Volume
https://www.readbyqxmd.com/read/27931965/musculoskeletal-interventional-procedures-with-or-without-imaging-guidance
#5
REVIEW
David Kane, Juhani Koski
Aspiration and injection of joints and soft tissues is an indispensable skill used in everyday practice by the clinical rheumatologist. Most rheumatologists recognise that performing these procedures using anatomical landmarks is not always successful, particularly in the case of small or infrequently injected joints, bursae or tendon sheaths. Musculoskeletal ultrasound confirms the local pathological-anatomical diagnosis and is the most applicable and feasible imaging method that can be applied in clinical practice in guiding musculoskeletal interventional procedures...
August 2016: Best Practice & Research. Clinical Rheumatology
https://www.readbyqxmd.com/read/27930090/sonoelastography-of-the-common-flexor-tendon-of-the-elbow-with-histologic-agreement-a-cadaveric-study
#6
Andrea S Klauser, Mathias J Pamminger, Ethan J Halpern, Mohamed M H Abd Ellah, Bernhard Moriggl, Mihra S Taljanovic, Christian Deml, Judith Sztankay, Guenter Klima, Leonhard Gruber, Werner R Jaschke
Purpose To determine the correlation of the results of conventional B-mode ultrasonography (US) and compression sonoelastography with histologic results in common flexor tendons of the elbow in human cadavers. Materials and Methods Twenty-five common flexor tendons were evaluated in 16 fresh, unembalmed cadavers of 11 women with a median age of 85 years (range, 71-101 years) and five men with a median age of 78 years (range, 70-88 years). Informed consent was provided according to the last will of the donors...
December 7, 2016: Radiology
https://www.readbyqxmd.com/read/27929803/an-autopsy-verified-case-of-ftld-tdp-type-a-with-upper-motor-neuron-predominant-motor-neuron-disease-mimicking-mm2-thalamic-type-sporadic-creutzfeldt-jakob-disease
#7
Yuichi Hayashi, Yasushi Iwasaki, Akira Takekoshi, Nobuaki Yoshikura, Takahiko Asano, Maya Mimuro, Akio Kimura, Katsuya Satoh, Tetsuyuki Kitamoto, Mari Yoshida, Takashi Inuzuka
Here we report an autopsy-verified case of frontotemporal lobar degeneration (FTLD)-transactivation responsive region (TAR) DNA binding protein (TDP) type A with upper motor neuron-predominant motor neuron disease mimicking MM2-thalamic-type sporadic Creutzfeldt-Jakob disease (sCJD). A 69-year-old woman presented with an 11-month history of progressive dementia, irritability, insomnia, and gait disturbance without a family history of dementia or prion disease. Neurological examination revealed severe dementia, frontal signs, and exaggerated bilateral tendon reflexes...
November 2016: Prion
https://www.readbyqxmd.com/read/27928546/radiostereometric-evaluation-of-tendon-elongation-after-distal-biceps-repair
#8
Nathan E Marshall, Robert A Keller, Kelechi Okoroha, John Michael Guest, Charles Yu, Stephanie Muh, Vasilios Moutzouros
BACKGROUND: Operative repair of distal biceps tendon ruptures has shown successful outcomes. However, little is known about the amount of tendon or repair site lengthening after repair. PURPOSE/HYPOTHESIS: The purpose of this study was to evaluate distal biceps tendon repair via intratendinous radiostereometric analysis to analyze tendon lengthening at different time intervals of healing. The hypothesis was that there is significant lengthening after repair. STUDY DESIGN: Case series; Level of evidence, 4...
November 2016: Orthopaedic Journal of Sports Medicine
https://www.readbyqxmd.com/read/27928468/sonoelastography-in-the-musculoskeletal-system-current-role-and-future-directions
#9
REVIEW
Naomi Winn, Radhesh Lalam, Victor Cassar-Pullicino
Ultrasound is an essential modality within musculoskeletal imaging, with the recent addition of elastography. The elastic properties of tissues are different from the acoustic impedance used to create B mode imaging and the flow properties used within Doppler imaging, hence elastography provides a different form of tissue assessment. The current role of ultrasound elastography in the musculoskeletal system will be reviewed, in particular with reference to muscles, tendons, ligaments, joints and soft tissue tumours...
November 28, 2016: World Journal of Radiology
https://www.readbyqxmd.com/read/27928209/the-value-of-visa-score-and-colour-flow-imaging-in-the-follow-up-of-non-athletes-operated-for-jumpers-knee
#10
Eirik S Salvesen, Ketil J Holen
The objective of this study was to assess if the Victorian Institute of Sport Assessment (VISA) questionnaire was suitable in the evaluation of patients from a mixed population with normal levels of sports activity, and if neovascularization of the patellar tendon demonstrated by color flow imaging (CFI) was more frequent in patients with lasting symptoms after surgical treatment for jumpers knee (JK). This study was conducted at St. Olavs Hospital, University Hospital of Trondheim, Norway, and included 21 men and 18 women who were operated for JK...
December 2016: Journal of Sports Science & Medicine
https://www.readbyqxmd.com/read/27928178/successful-foaling-by-a-standardbred-mare-with-a-ruptured-prepubic-tendon
#11
Kerry J V Schutten
A 12-year-old Standardbred mare was diagnosed with a ruptured prepubic tendon 1 month prepartum. The mare was treated with analgesia, stall rest, and an abdominal support wrap that was tightened daily. Both a live foal born 1 month later and the mare are doing well.
December 2016: Canadian Veterinary Journal. la Revue Vétérinaire Canadienne
https://www.readbyqxmd.com/read/27927626/the-impact-of-tgf-%C3%AE-inhibition-during-acute-exercise-on-achilles-tendon-extracellular-matrix
#12
Ross M Potter, Richard T Huynh, Brent D Volper, Kathryn A Arthur, Andrew C D'Lugos, Mikkel A Sørensen, S Peter Magnusson, Jared M Dickinson, Taben M Hale, Chad C Carroll
The purpose of this study was to evaluate the role of TGF-β1 in regulating tendon extracellular matrix (ECM) after acute exercise. Wistar rats exercised (n=15) on a treadmill for four consecutive days (60 min/day) or maintained normal cage activity. After each exercise bout, the peritendinous space of each Achilles tendon was injected with a TGF-β1 receptor inhibitor or sham. Independent of group, tendons injected with inhibitor exhibited ~50% lower Smad 3 (Ser423/425) (p<0.05) and 2.5-fold greater ERK1/2 phosphorylation (p<0...
December 7, 2016: American Journal of Physiology. Regulatory, Integrative and Comparative Physiology
https://www.readbyqxmd.com/read/27927611/prenatal-myonuclei-play-a-crucial-role-for-skeletal-muscle-hypertrophy-in-rodents
#13
Fuminori Kawano, Yusuke Ono, Ryo Fujita, Atsuya Watanabe, Ryo Masuzawa, Kazuhiro Shibata, Shunsuke Hasegawa, Ken Nakata, Naoya Nakai
Multi-nucleated muscle fibers are formed by the fusion of myogenic progenitor cells during embryonic and fetal myogenesis. However, the role of prenatally incorporated myonuclei in the skeletal muscle fibers of adult animals is poorly understood. We demonstrated, using the muscle-specific reporter mice, that the prenatal myonuclei remained in the adult soleus muscle, although cardiotoxin injection caused the loss of prenatal myonuclei. Overloading by the tendon transection of synergists failed to induce compensatory hypertrophy in regenerated soleus muscle fibers of adult rats, whereas unloading by tail suspension normally induced the fiber atrophy...
December 7, 2016: American Journal of Physiology. Cell Physiology
https://www.readbyqxmd.com/read/27925641/simvastatin-exposure-and-rotator-cuff-repair-in-a-rat-model
#14
Matthew E Deren, John R Ehteshami, Joshua S Dines, Mark C Drakos, Steve B Behrens, Stephen Doty, Struan H Coleman
Simvastatin is a common medication prescribed for hypercholesterolemia that accelerates local bone formation. It is unclear whether simvastatin can accelerate healing at the tendon-bone interface after rotator cuff repair. This study was conducted to investigate whether local and systemic administration of simvastatin increased tendon-bone healing of the rotator cuff as detected by maximum load to failure in a controlled animal-based model. Supraspinatus tendon repair was performed on 120 Sprague-Dawley rats...
December 7, 2016: Orthopedics
https://www.readbyqxmd.com/read/27924840/atmospheric-pressure-non-equilibrium-plasma-as-a-green-tool-to-crosslink-gelatin-nanofibers
#15
Anna Liguori, Adriana Bigi, Vittorio Colombo, Maria Letizia Focarete, Matteo Gherardi, Chiara Gualandi, Maria Chiara Oleari, Silvia Panzavolta
Electrospun gelatin nanofibers attract great interest as a natural biomaterial for cartilage and tendon repair despite their high solubility in aqueous solution, which makes them also difficult to crosslink by means of chemical agents. In this work, we explore the efficiency of non-equilibrium atmospheric pressure plasma in stabilizing gelatin nanofibers. We demonstrate that plasma represents an innovative, easy and environmentally friendly approach to successfully crosslink gelatin electrospun mats directly in the solid state...
December 7, 2016: Scientific Reports
https://www.readbyqxmd.com/read/27923658/temporal-regulation-of-gap-junctional-communication-between-tenocytes-subjected-to-static-tensile-strain-with-physiological-and-non-physiological-amplitudes
#16
Eijiro Maeda, Haicheng Pian, Toshiro Ohashi
The present study has been performed on temporal changes in gap junctional intercellular communication (GJIC) between tenocytes under static tensile strain with the magnitude of 0% (no strain), 4% (physiological magnitude) or 8% (overloading magnitude) during a 24-h culture period. Tenocytes were isolated from rabbit Achilles tendon and seeded on a stretchable microgroove substrate. GJIC was evaluated as intercellular diffusion coefficient of calcein (DGJ) using fluorescence loss in photobleaching (FLIP) protocol accompanied with a mathematical model of molecular diffusion both within the cell and between the cells...
December 3, 2016: Biochemical and Biophysical Research Communications
https://www.readbyqxmd.com/read/27923213/proximity-of-the-lateral-calcaneal-artery-with-a-modified-extensile-lateral-approach-compared-to-standard-extensile-approach
#17
John Y Kwon, Tyler Gonzalez, Matthew D Riedel, Ara Nazarian, Mohammad Ghorbanhoseini
BACKGROUND: The extensile lateral approach (EL) has been associated with increased wound complications such as apical necrosis which may be due partially from violation of the lateral calcaneal artery (LCA). Traditionally, the vertical limb has been placed half-way between the fibula and Achilles tendon, which may be suboptimal given the proximity to the LCA. We hypothesized that placing the vertical limb further posterior (ie, modified EL [MEL]) would increase the distance from the LCA...
October 23, 2016: Foot & Ankle International
https://www.readbyqxmd.com/read/27922288/medial-gastrocnemius-myotendinous-junction-displacement-and-plantar-flexion-strength-in-patients-treated-with-immediate-rehabilitation-after-achilles-tendon-repair
#18
Carlos I De la Fuente, Roberto Peña Y Lillo, Rodrigo Ramirez Campillo, Pablo Ortega-Auriol, Mauricio Delgado, Joel Alvarez-Ruf, Gabriel Carreño
CONTEXT:  Pathologic plantar flexion frequently occurs after operative repair of the Achilles tendon (AT) because of immobilization and non-weight bearing in the first weeks of traditional rehabilitation. Novel rehabilitation strategies that apply mobilization and weight bearing have been proposed, but their effects on medial gastrocnemius myotendinous junction displacement (MJD) and isometric plantar-flexion strength (PFS) are unknown. OBJECTIVE:  To compare the effects of 12 weeks of immediate versus traditional rehabilitation on MJD and PFS in patients with percutaneous AT repair and to compare AT rupture scores (ATRSs) during follow-up...
December 6, 2016: Journal of Athletic Training
https://www.readbyqxmd.com/read/27921157/assessment-of-pisotriquetral-misalignment-with-magnetic-resonance-imaging-is-it-associated-with-trauma
#19
Hee-Dong Chae, Hye Jin Yoo, Sung Hwan Hong, Ja-Young Choi, Heung Sik Kang
OBJECTIVE: Our objective was to determine whether there is an association between pisotriquetral (PT) malalignment and acute distal radius fracture by using magnetic resonance imaging (MRI). METHODS: We evaluated 138 patients who underwent 3-T MRI of the wrists. Group A comprised 85 patients with acute distal radius fracture, and group B comprised 53 patients without trauma. PT interval and angle and pisiform excursion were measured on oblique axial and sagittal multiplanar reformats...
December 5, 2016: European Radiology
https://www.readbyqxmd.com/read/27920330/treatment-of-insertional-achilles-pathology-with-dorsal-wedge-calcaneal-osteotomy-in-athletes
#20
Dimitrios Georgiannos, Vasilis Lampridis, Angelos Vasiliadis, Ilias Bisbinas
BACKGROUND: Insertional Achilles tendinopathy and retrocalcaneal bursitis is difficult to treat, and several operative techniques have been used after failure of conservative management. Dorsal wedge calcaneal osteotomy has been described for the treatment of insertional Achilles pathology. It was hypothesized that dorsal wedge calcaneal osteotomy would be an effective and safe method for the treatment of athletes with insertional Achilles pathology unrelieved by nonoperative measures...
December 5, 2016: Foot & Ankle International
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