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Muscle transfer

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https://www.readbyqxmd.com/read/29777279/-flap-coverage-using-the-posterior-gluteal-thigh-flap
#1
REVIEW
M K Boyce, T R Mett, R Ipaktchi, P M Vogt
OBJECTIVE: Defect coverage of the sacral, trochanteric or ischial region with durable tissue (gluteal thigh flap). INDICATIONS: Decubital ulcers of the sacral, trochanteric or ischial region after exhaustion of conservative measures. CONTRAINDICATIONS: Moribund or palliative patients who do not benefit from defect coverage and are likely to suffer a life-threatening complication. Noncompliant patients, who cannot follow the postoperative recommendations or protocols in regard to positioning or recurrence prevention...
May 17, 2018: Operative Orthopädie und Traumatologie
https://www.readbyqxmd.com/read/29775983/classification-and-microvascular-flap-selection-for-anterior-cranial-fossa-reconstruction
#2
James D Vargo, Wojciech Przylecki, Paul J Camarata, Brian T Andrews
BACKGROUND:  Microvascular reconstruction of the anterior cranial fossa (ACF) creates difficult challenges. Reconstructive goals and flap selection vary based on the defect location within the ACF. This study evaluates the feasibility and reliability of free tissue transfer for salvage reconstruction of low, middle, and high ACF defects. METHODS:  A retrospective review was performed. Reconstructions were anatomically classified as low (anterior skull base), middle (frontal bar/sinus), and high (frontal bone/soft tissue)...
May 18, 2018: Journal of Reconstructive Microsurgery
https://www.readbyqxmd.com/read/29774167/complete-hypokalemic-quadriparesis-as-a-first-presentation-of-sj%C3%A3-gren-syndrome
#3
Jason An, Branko Braam
Rationale: We hope to increase awareness that hypokalemic paralysis may be the first presentation of Sjögren syndrome, for which potassium-sparing diuretics can be an effective adjunct to potassium replenishment. Presenting concerns: A 73-year-old female presented to a peripheral hospital with quadriparesis and a critically low serum potassium of 1.6 mmol/L with U waves on the electrocardiogram (ECG). The initial arterial blood gas showed a pH of 7.19, bicarbonate of 13 mEq/L, and a CO2 of 35 mm Hg...
2018: Canadian Journal of Kidney Health and Disease
https://www.readbyqxmd.com/read/29773685/simulated-work-loops-predict-maximal-human-cycling-power
#4
James C Martin, Jennifer A Nichols
Fish, birds, and lizards sometimes perform locomotor activities with maximized muscle power. Whether humans maximize muscular power is unknown because current experimental techniques cannot be applied non-invasively. This study uses simulated muscle work loops to examine whether voluntary maximal cycling is characterized by maximized muscle power. The simulated work loops leverage experimentally measured joint angles, anatomically realistic muscle parameters (muscle-tendon lengths, velocities, and moment arms), and a published muscle model to calculate powers and forces for thirty-eight muscles...
May 17, 2018: Journal of Experimental Biology
https://www.readbyqxmd.com/read/29771049/-a-case-report-of-tracheotomy-complicated-by-hemorrhage-after-radical-operation-of-tongue
#5
M Y Sun, H J Wu
A 55-year old middle-aged male presented swelling lymph nodes in neck and mass in left tongue for three mouths. Physical examination shows a size 5 cm×5 cm mass in tongue and went over the midline. The mandibular lymph nodes were touched with moderate tenderness and little mobility in bilateral. The laboratory results, function of the kidney and heart liver, nasopharyngeal fiber area were basically normal. The result of CT and MRI shows the mass reached the lingual muscle layer and several suspected metastatic lymph nodes in neck...
May 20, 2017: Journal of Clinical Otorhinolaryngology, Head, and Neck Surgery
https://www.readbyqxmd.com/read/29769162/increased-pregnancy-losses-following-serial-somatic-cell-nuclear-transfer-in-goats
#6
Min Yang, Iuri Perisse, Zhiqiang Fan, Misha Regouski, Mirella Meyer-Ficca, Irina A Polejaeva
Serial cloning by somatic cell nuclear transfer (SCNT) is a critical tool for the expansion of precious transgenic lines or resetting the lifespan of primary transgenic cells for multiple genetic modifications. We successfully produced second-generation cloned goats using donor neonatal fibroblasts from first-generation clones. However, our attempts to produce any third-generation clones failed. SCNT efficiency decreased progressively with the clonal generations. The rate of pregnancy loss was significantly greater in recloning groups (P<0...
May 17, 2018: Reproduction, Fertility, and Development
https://www.readbyqxmd.com/read/29768096/lower-extremity-muscle-function-of-front-row-rugby-union-scrummaging
#7
Mostafa Yaghoubi, Sally D Lark, Wyatt H Page, Philip W Fink, Sarah P Shultz
A rugby scrum's front row must act uniformly to transfer maximal horizontal force and improve performance. This study investigated the muscle activation patterns of lower extremity muscles in front row forwards during live and machine scrums at professional and amateur levels. Electromyography was collected bilaterally on vastus lateralis, rectus femoris and gastrocnemius muscles of 75 male rugby prop players during live and machine scrums. ANOVAs compared muscle reaction time, rate of change in muscle amplitude and muscle amplitude between groups and conditions...
May 16, 2018: Sports Biomechanics
https://www.readbyqxmd.com/read/29765351/multiscale-information-transfer-in-functional-corticomuscular-coupling-estimation-following-stroke-a-pilot-study
#8
Xiaoling Chen, Ping Xie, Yuanyuan Zhang, Yuling Chen, Fangmei Yang, Litai Zhang, Xiaoli Li
Recently, functional corticomuscular coupling (FCMC) between the cortex and the contralateral muscle has been used to evaluate motor function after stroke. As we know, the motor-control system is a closed-loop system that is regulated by complex self-regulating and interactive mechanisms which operate in multiple spatial and temporal scales. Multiscale analysis can represent the inherent complexity. However, previous studies in FCMC for stroke patients mainly focused on the coupling strength in single-time scale, without considering the changes of the inherently directional and multiscale properties in sensorimotor systems...
2018: Frontiers in Neurology
https://www.readbyqxmd.com/read/29765189/effect-of-capacitive-and-resistive-electric-transfer-on-changes-in-muscle-flexibility-and-lumbopelvic-alignment-after-fatiguing-exercise
#9
Yuki Yokota, Takuya Sonoda, Yuto Tashiro, Yusuke Suzuki, Yu Kajiwara, Hala Zeidan, Yasuaki Nakayama, Mirei Kawagoe, Kanako Shimoura, Masataka Tatsumi, Kengo Nakai, Yuichi Nishida, Tsubasa Bito, Soyoka Yoshimi, Tomoki Aoyama
[Purpose] This study aimed to clarify the effects of Capacitive and Resistive electric transfer (CRet) on changes in muscle flexibility and lumbopelvic alignment after fatiguing exercise. [Subjects and Methods] Twenty-two healthy males were assigned into either the CRet (n=11) or control (n=11) group. Fatiguing exercise and CRet intervention were applied at the quadriceps muscle of the participants' dominant legs. The Ely test, pelvic tilt, lumbar lordosis, and superficial temperature were measured before and after exercise and for 30 minutes after intervention...
May 2018: Journal of Physical Therapy Science
https://www.readbyqxmd.com/read/29762448/pectoralis-major-musculocutaneous-flap-with-a-midline-sternal-skin-paddle-for-head-and-neck-reconstruction-a-new-design
#10
Jeongseok Oh, Hee Chang Ahn, Seungki Youn, Kyung Tae
PURPOSE: The pectoralis major musculocutaneous (PMMC) flap is a classic flap for head and neck reconstruction, relatively unpopular with the advancement of microsurgery and free flaps. The classic parasternal paddle design provided a thick flap with a small rotation arch leaving objectionable scarring. Our new symmetric midsternal design overcomes these problems. METHODS: Chart review was done from the years 2000 to 2017. Flap skin paddle was placed symmetrically on both sides of the midsternal line...
May 14, 2018: Annals of Plastic Surgery
https://www.readbyqxmd.com/read/29758570/acute-hip-abduction-fatigue-on-lumbopelvic-hip-complex-stability-in-softball-players
#11
Jessica Washington, Gabrielle Gilmer, Gretchen Oliver
During an overhead throw, the gluteal muscle group stabilizes the lumbopelvic-hip complex (LPHC), leading to efficient energy transfer from the lower to upper extremity. It has been shown that LPHC instability can lead to throwing pathomechanics. The single leg squat has become a common assessment for LPHC stability, and could be used to determine the effects of fatigue on throwing athletes. The purpose of this study was to determine the effects of an acute abduction fatigue protocol on the LPHC of collegiate softball players via the single leg squat assessment of the leg ipsilateral to the throwing arm...
May 14, 2018: International Journal of Sports Medicine
https://www.readbyqxmd.com/read/29757529/fiber-based-scaffolding-techniques-for-tendon-tissue-engineering
#12
REVIEW
Yang Wu, Yi Han, Yoke San Wong, Jerry Ying Hsi Fuh
Tendon refers to a band of tough, regularly arranged and connective tissue connecting muscle and bone, transferring strength from muscle to bone, and enabling articular stability and movement. The limitations of natural tendon grafts motivate the scaffold-based tissue engineering (TE) approaches, which aim to build patient-specific biological substitutes that can repair the damaged or diseased tissues. Advances in engineering and knowledge of chemistry and biology have brought forth numerous fiber-based technologies, including electrospinning, electrohydrodynamic jet printing, electrochemical alignment technique and other fiber-assembly technologies, which enable the fabrication of tendon tissue structure in three-dimension...
May 14, 2018: Journal of Tissue Engineering and Regenerative Medicine
https://www.readbyqxmd.com/read/29746277/skin-paddles-improve-muscle-flap-salvage-rates-after-microvascular-compromise-in-lower-extremity-reconstruction
#13
John T Stranix, Adam Jacoby, Z-Hye Lee, Lavinia Anzai, Pierre B Saadeh, Vishal Thanik, Jamie P Levine
PURPOSE: Free tissue transfer after lower extremity trauma is associated with notoriously high complication rates. Theoretically, the inclusion of a cutaneous paddle on muscle free flaps may improve clinical flap monitoring. The effect of skin paddle presence on muscle free flap salvage outcomes after take-back was examined. METHODS: Retrospective query of our institutional free-flap registry (1979-2016) identified 362 muscle-based flaps performed for soft tissue coverage after below-knee trauma...
April 30, 2018: Annals of Plastic Surgery
https://www.readbyqxmd.com/read/29745256/salvage-of-cervical-motor-radiculopathy-using-peripheral-nerve-transfer-reconstruction
#14
Fardad T Afshari, Taushaba Hossain, Caroline Miller, Dominic M Power
PURPOSE: Motor nerve transfer surgery involves re-innervation of important distal muscles using either an expendable motor branch or a fascicle from an adjacent functioning nerve. This technique is established as part of the reconstructive algorithm for traumatic brachial plexus injuries. The reproducible outcomes of motor nerve transfer surgery have resulted in exploration of the application of this technique to other paralysing conditions. The objective of this study is to report feasibility and increase awareness about nerve transfer as a method of improving upper limb function in patients with cervical motor radiculopathy of different aetiology...
May 10, 2018: British Journal of Neurosurgery
https://www.readbyqxmd.com/read/29735266/neuraminidase-1-activates-insulin-receptor-and-reverses-insulin-resistance-in-obese-mice
#15
Anne Fougerat, Xuefang Pan, Victoria Smutova, Nikolaus Heveker, Christopher W Cairo, Tarik Issad, Bruno Larrivée, Jeffrey A Medin, Alexey V Pshezhetsky
OBJECTIVES: Neuraminidase 1 (NEU1) cleaves terminal sialic acids of glycoconjugates during lysosomal catabolism. It also modulates the structure and activity of cellular surface receptors affecting diverse pathways. Previously we demonstrated that NEU1 activates the insulin receptor (IR) and that NEU1-deficient CathAS190A-Neo mice (hypomorph of the NEU1 activator protein, cathepsin A/CathA) on a high-fat diet (HFD) develop hyperglycaemia and insulin resistance faster than wild-type animals...
April 21, 2018: Molecular Metabolism
https://www.readbyqxmd.com/read/29734894/-in-situ-vascular-nerve-graft-for-restoration-of-intrinsic-hand-function-an-anatomical-study
#16
Kamran Mozaffarian, Hamid Reza Zemoodeh, Mohammad Zarenezhad, Mohammad Owji
BACKGROUND: In combined high median and ulnar nerve injury, transfer of the posterior interosseous nerve branches to the motor branch of the ulnar nerve (MUN) is previously described in order to restore intrinsic hand function. In this operation a segment of sural nerve graft is required to close the gap between the donor and recipient nerves. However the thenar muscles are not innervated by this nerve transfer. The aim of the present study was to evaluate whether the superficial radial nerve (SRN) can be used as an "in situ vascular nerve graft" to connect the donor nerves to the MUN and the motor branch of median nerve (MMN) at the same time in order to address all denervated intrinsic and thenar muscles...
June 2018: Journal of Hand Surgery Asian-Pacific Volume
https://www.readbyqxmd.com/read/29734889/oberlin-s-transfer-long-term-outcomes
#17
Karlis Verdins, Martins Kapickis
BACKGROUND: Brachial plexus injury is very commonly associated with road traffic accidents, and frequently affects young adults, causing significant disability and impact on quality of life. The successful treatment of upper plexus injury with the Oberlin technique to restore elbow flexion with good functional results. METHODS: We retrieved the records of all patients with upper plexus injury who underwent Oberlin transfer operation between March 2007 and July 2012...
June 2018: Journal of Hand Surgery Asian-Pacific Volume
https://www.readbyqxmd.com/read/29734445/a-multicenter-analysis-examining-patients-undergoing-conversion-of-implant-based-breast-reconstruction-to-abdominally-based-free-tissue-transfer
#18
Ruya Zhao, Bao Ngoc N Tran, Andres F Doval, Gloria Broadwater, Kate J Buretta, Jonah P Orr, Bernard T Lee, Scott T Hollenbeck
BACKGROUND:  Breast implant placement is the most common method for postmastectomy reconstruction. For patients who develop complications associated with implant-based reconstruction, additional surgeries may be challenging. This study examined implant-based reconstruction failure in patients undergoing salvage with abdominal free tissue transfer. METHODS:  We conducted an Institutional Review Board approved, multicenter retrospective study of patients with implant-based primary breast reconstruction followed by implant removal and subsequent abdominal free tissue transfer between 2006 and 2016...
May 7, 2018: Journal of Reconstructive Microsurgery
https://www.readbyqxmd.com/read/29732501/pkm2-dependent-metabolic-reprogramming-in-cd4-t-cells-is-crucial-for-hyperhomocysteinemia-accelerated-atherosclerosis
#19
Silin Lü, Jiacheng Deng, Huiying Liu, Bo Liu, Juan Yang, Yutong Miao, Jing Li, Nan Wang, Changtao Jiang, Qingbo Xu, Xian Wang, Juan Feng
Inflammation mediated by activated T cells plays an important role in the initiation and progression of hyperhomocysteinemia (HHcy)-accelerated atherosclerosis in ApoE-/- mice. Homocysteine (Hcy) activates T cells to secrete proinflammatory cytokines, especially interferon (IFN)-γ; however, the precise mechanisms remain unclear. Metabolic reprogramming is critical for T cell inflammatory activation and effector functions. Our previous study demonstrated that Hcy regulates T cell mitochondrial reprogramming by enhancing endoplasmic reticulum (ER)-mitochondria coupling...
May 7, 2018: Journal of Molecular Medicine: Official Organ of the "Gesellschaft Deutscher Naturforscher und Ärzte"
https://www.readbyqxmd.com/read/29732040/botulism-and-cavernous-sinus-thrombosis-induced-by-acute-rhinosinusitis-a-case-report
#20
Ali Tavassoli, Mahmood Sadeghi, Parviz Amri
Background: Botulism is an acute and rapidly progressive descending paralytic disease caused by a neurotoxin of clostridium botulinum. Case presentation: A 28-year-old woman presented with severe generalized ascending symmetrical muscle paralysis. The patient was intubated and transferred to the medical intensive care unit with several symptoms including: severe headache, dysphagia, dyspnea, ptosis, diplopia, and dry mouth. Despite being alert, pupils were bilaterally midriatic and had absent corneal reflux...
2018: Caspian Journal of Internal Medicine
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