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https://www.readbyqxmd.com/read/29244671/sterile-abscess-with-subsequent-iatrogenic-draining-sinus-tract-formation-3-years-after-fiberwire-and-endobutton-distal-biceps-brachii-tendon-repair-a-case-report
#1
Derek T Bernstein, Kyle R Sochacki, Kourosh K Jafarnia
CASE: We report a case of a sterile abscess with subsequent sinus tract formation mimicking infection 3 years after uncomplicated distal biceps brachii tendon repair with FiberWire suture in a 42-year-old man. The preoperative workup for infection was unremarkable. Intraoperative culture specimens confirmed the absence of infection. Excision of the sinus tract and FiberWire-ENDOBUTTON construct was curative. At the 1-year follow-up, there had been no recurrence of symptoms. CONCLUSION: Foreign-body inflammatory reactions should be considered in the differential diagnosis of patients with apparent infection with a history of FiberWire suture fixation and negative serologic workup...
April 2017: JBJS Case Connector
https://www.readbyqxmd.com/read/29242798/anterior-elbow-pain-caused-by-compression-of-the-lateral-antebrachial-cutaneous-nerve
#2
Sean M Booth, Abdulbaset Abosala, Chris Peach
Introduction: The complex anatomy and biomechanics of the elbow joint can lead to diagnostic uncertainty when a clinician is determining the cause of a patient's anterior elbow pain. We present a case of anterior elbow pain with an uncommon and often overlooked etiology. Elbow pain due to compression of the lateral antebrachial nerve (LACN) has an unknown incidence or prevalence. Case Report: A 27-year-old left-hand dominant male presented to our orthopedic elbow clinic complaining of bilateral elbow clicking and discomfort which had been present for several years...
September 2017: Journal of Orthopaedic Case Reports
https://www.readbyqxmd.com/read/29241987/boys-biceps-and-bradycardia-the-hidden-dangers-of-muscularity-oriented-disordered-eating
#3
Stuart B Murray, Erin C Accurso, Scott Griffiths, Jason M Nagata
The recognition of eating disorders (EDs) in males represents an ongoing challenge for physicians. This challenge is particularly complex in the case of EDs that are oriented toward muscularity, as opposed to thinness, which current diagnostic criteria do not accommodate. Nevertheless, EDs in males, and muscularity-oriented disordered eating (MODE) in particular, are increasingly prevalent and are likely to be encountered in clinical practice. We report the case of a 16-year-old male who presented with medical instability, requiring hospitalization, in the context of MODE...
December 11, 2017: Journal of Adolescent Health: Official Publication of the Society for Adolescent Medicine
https://www.readbyqxmd.com/read/29241816/triple-bundle-anatomical-reconstruction-using-the-coracoacromial-ligament-and-the-short-head-of-biceps-tendon-to-stabilize-chronic-acromioclavicular-joint-dislocations-a-cadaver-feasibility-study
#4
M Le Hanneur, D Delgrande, T Lafosse, J-D Werthel, P Hardy, B Elhassan
INTRODUCTION: In cases of chronic acromioclavicular joint separation, the biomechanical properties of anatomical reconstructions are closer to the native configuration than the Weaver-Dunn procedure. Consequently, the radiological and clinical outcomes are better. However, an additional incision is needed to harvest the graft, which increases the procedure's morbidity. HYPOTHESIS: Triple-bundle reconstruction can be performed with the coracoacromial ligament (CAL) and the semi conjoined tendon (SCT)...
December 11, 2017: Orthopaedics & Traumatology, Surgery & Research: OTSR
https://www.readbyqxmd.com/read/29240948/early-cyclical-neuromuscular-electrical-stimulation-improves-strength-and-trophism-by-akt-pathway-signaling-in-partially-paralyzed-biceps-muscle-after-spinal-cord-injury-in-rats
#5
Gabriel R de Freitas, Caroline C do Espírito Santo, Nicolas A M M de Machado-Pereira, Franciane Bobinski, Adair R S Dos Santos, Jocemar Ilha
Background: Electrical stimulation is often used to treat weakness in people with spinal cord injury (SCI), however its efficacy to increase strength and trophism are weak and the mechanisms underlying the therapeutic benefits are unknown. Objective: The purpose of the study was to analyze the effects of neuromuscular electrical stimulation (NMES) on muscle function, trophism and the Akt pathway signaling involved in muscular plasticity after incomplete-SCI in rats...
December 12, 2017: Physical Therapy
https://www.readbyqxmd.com/read/29239982/postexercise-hypotension-and-heart-rate-variability-responses-subsequent-to-traditional-paired-set-and-superset-training-methods
#6
Gabriel A Paz, Eliseo Iglesias-Soler, Jeffrey M Willardson, Marianna de Freitas Maia, Humberto Miranda
The purpose of this study was to compare training volume, post-exercise hypotension (PEH) and heart rate variability (HRV) responses to different strength training methods. Thirteen trained men volunteered for this study. Three training methods were completed in a randomized design, which included: Traditional Set (TS) - three successive sets for the lying bench press (LBP), lat pulldown (LPD), incline 45° bench press (BP45), seated close-grip row (SCR), triceps extension (TE), and biceps curl (BC), with a 90 sec...
December 11, 2017: Journal of Strength and Conditioning Research
https://www.readbyqxmd.com/read/29239479/investigating-canine-elbow-joint-stabilisation-through-mechanical-constraints-of-the-deep-fascia-and-other-soft-tissues
#7
Timothy E Chong, Helen M S Davies
The objective of this research was to investigate how the range of flexion and extension of the canine elbow joint is constrained by the mechanical connections and attachments of soft tissue structures. The skin, a section of deep fascia and several muscles from both forelimbs from six adult greyhounds and seven other breeds were sequentially transected or removed, over 13 steps. During each step, repeated measurements of elbow flexion and extension were recorded using a goniometer. Only marginally significant changes to the range of flexion occurred in any of the 13 steps or overall for the greyhounds...
December 14, 2017: Journal of Anatomy
https://www.readbyqxmd.com/read/29238254/assessment-of-three-dimensional-trunk-kinematics-and-muscle-activation-during-cycling-with-independent-cranks
#8
Eric Bourdon, Matthew Mavor, Dean C Hay
Independent cranks (IC) are recently introduced bicycle cranks that are decoupled; therefore allowing each leg to pedal independent of the other. Despite this introduction, limited research has been conducted assessing biomechanical changes when cycling with IC. Therefore, the purpose of this study was to evaluate and compare trunk kinematics and surface electromyography (sEMG) during IC and normal crank (NC) cycling during a graded exercise test to volitional fatigue. Ten healthy, physically active men performed two tests (IC and NC) on a cycling ergometer on separate days...
December 2017: Journal of Sports Science & Medicine
https://www.readbyqxmd.com/read/29237403/isolated-and-repeated-stroke-like-episodes-in-a-middle-aged-man-with-a-mitochondrial-nd3-t10158c-mutation-a-case-report
#9
Satomi Mezuki, Kenji Fukuda, Tomonaga Matsushita, Yoshihisa Fukushima, Ryu Matsuo, Yu-Ichi Goto, Takehiro Yasukawa, Takeshi Uchiumi, Dongchon Kang, Takanari Kitazono, Tetsuro Ago
BACKGROUND: Mitochondrial myopathy, encephalopathy, lactic acidosis and stroke-like episodes (MELAS) syndrome, is the most common phenotype of mitochondrial disease. It often develops in childhood or adolescence, usually before the age of 40, in a maternally-inherited manner. Mutations in mitochondrial DNA (mtDNA) are frequently responsible for MELAS. CASE PRESENTATION: A 55-year-old man, who had no family or past history of mitochondrial disorders, suddenly developed bilateral visual field constriction and repeated stroke-like episodes...
December 13, 2017: BMC Neurology
https://www.readbyqxmd.com/read/29237078/determinants-of-peripheral-muscle-strength-and-activity-in-daily-life-in-people-with-bronchiectasis
#10
Anderson Alves de Camargo, Jacqueline C Boldorini, Anne E Holland, Rejane A Silva de Castro, Fernanda de Cordoba Lanza, Rodrigo A Athanazio, Samia Z Rached, Regina Carvalho-Pinto, Alberto Cukier, Rafael Stelmach, Simone Dal Corso
Background: Bronchiectasis is characterized by a progressive structural lung damage, recurrent infections and chronic inflammation which compromise the exertion tolerance, and may have an impact on skeletal muscle function and physical function. Objective: The purpose of this study was to compare peripheral muscle strength, exercise capacity, and physical activity in daily life between participants with bronchiectasis and controls and to investigate the determinants of the peripheral muscle strength and physical activity in daily life in bronchiectasis...
December 9, 2017: Physical Therapy
https://www.readbyqxmd.com/read/29236794/qualitative-analysis-of-the-viability-of-autogenous-fat-grafts-grafted-in-different-environments-of-interstitial-pressure-preliminary-results-and-description-of-a-new-experimental-model-in-mini-pigs
#11
Eduardo Gustavo Pires de Arruda, Alexandre Mendonça Munhoz, Walter Matsumoto, Thiago Ueda, Renata de Almeida Coudry, Rolf Gemperli
PURPOSE: To evaluate the feasibility of an experimental model of autologous fat graft (AFG) in different interstitial pressure (IP) environments. METHODS: Three mini-pigs(Minipig-BR) with age of 8 months (weight: 25-30 kg) were used. AFG were collected from the bucal fat pad, and grafted in the intramuscular pocket (biceps femoralis muscle). IP model was based on a fusiform ressection followed by primary closure "under tension". A blood pressure catheter located in the intramuscular region connected to a pressure module was applied to quantify IP...
November 2017: Acta Cirúrgica Brasileira
https://www.readbyqxmd.com/read/29230191/the-reticulospinal-pathway-does-not-increase-its-contribution-to-the-strength-of-contralesional-muscles-in-stroke-survivors-as-compared-to-ipsilesional-side-or-healthy-controls
#12
Sheng Li, Minal Bhadane, Fan Gao, Ping Zhou
Objective: Startling acoustic stimulation (SAS), via activation of reticulospinal (RS) pathways, has shown to increase muscle strength in healthy subjects. We hypothesized that, given RS hyperexcitability in stroke survivors, SAS could increase muscle strength in stroke survivors. The objective was to quantify the effect of SAS on maximal and sub-maximal voluntary elbow flexion on the contralesional (impaired) side in stroke survivors as compared to ipsilesional (non-impaired) side and healthy controls...
2017: Frontiers in Neurology
https://www.readbyqxmd.com/read/29229395/the-effect-of-shoulder-position-on-motor-evoked-and-maximal-muscle-compound-action-potentials-of-the-biceps-brachii
#13
Brandon W Collins, Duane C Button
The purpose of the study was to assess the effect of shoulder position, 0° versus 90° shoulder flexion, on stimulation intensity and maximal muscle compound action potentials (Mmax) and motor evoked potentials (MEP) of the biceps brachii during both rest and 10% maximum voluntary contraction (MVC). Nine participants completed two experimental sessions with four conditions. During each condition, transcranial magnetic (TMS) and Erb's point stimulation were used to elicit MEPs and Mmax, respectively. During rest, the TMS intensity to elicit a MEP response (p <0...
December 8, 2017: Neuroscience Letters
https://www.readbyqxmd.com/read/29225162/can-ultrasound-be-used-to-improve-the-palpation-skills-of-physicians-in-training-a-prospective-study
#14
Ryan Woods, Steve J Wisniewski, Daniel R Lueders, Thomas P Pittelkow, Dirk R Larson, Jonathan T Finnoff
BACKGROUND: Accurate diagnosis of musculoskeletal disorders relies heavily upon the physical examination, including accurate palpation of musculoskeletal structures. The literature has suggested there has been deterioration of physical examination skills among medical students and residents in part due to increased reliance on advanced imaging. It has been shown that knowledge of musculoskeletal anatomy and physical examination skills improve with the use of ultrasound; however, the literature is limited...
December 7, 2017: PM & R: the Journal of Injury, Function, and Rehabilitation
https://www.readbyqxmd.com/read/29223017/biceps-femoris-fascicle-length-during-passive-stretching
#15
Eleftherios Kellis
The purpose of this study was to quantify the relative changes in fascicle (FL) and muscle-tendon unit (LMTU) length of the long head of the biceps femoris (BFlh) at different combinations of hip and knee joint positions. Fourteen participants performed passive knee extension trials from 0°, 45° and 90° of hip flexion. FL, LMTU, pennation angle (PA) and effective FL (FL multiplied by the cosine of the PA) of the BFlh were quantified using ultrasonography (US). Three-way analysis of variance designs indicated that at each hip angle, FL and LMTU increased and PA decreased from 90° to 0° of knee flexion...
December 5, 2017: Journal of Electromyography and Kinesiology
https://www.readbyqxmd.com/read/29219789/oberlin-transfer-compared-with-nerve-grafting-for-improving-early-supination-in-neonatal-brachial-plexus-palsy
#16
Kate W C Chang, Thomas J Wilson, Miriana Popadich, Susan H Brown, Kevin C Chung, Lynda J S Yang
OBJECTIVE The use of nerve transfers versus nerve grafting for neonatal brachial plexus palsy (NBPP) remains controversial. In adult brachial plexus injury, transfer of an ulnar fascicle to the biceps branch of the musculocutaneous nerve (Oberlin transfer) is reportedly superior to nerve grafting for restoration of elbow flexion. In pediatric patients with NBPP, recovery of elbow flexion and forearm supination is an indicator of resolved NBPP. Currently, limited evidence exists of outcomes for flexion and supination when comparing nerve transfer and nerve grafting for NBPP...
December 8, 2017: Journal of Neurosurgery. Pediatrics
https://www.readbyqxmd.com/read/29216288/adaptations-in-antagonist-co-activation-role-in-the-repeated-bout-effect
#17
Robert E Hight, Travis W Beck, Debra A Bemben, Christopher D Black
Eccentric exercise results in an adaptation which attenuates muscle damage from subsequent exercise-termed the "repeated-bout effect (RBE)." PURPOSE: Study examined antagonist co-activation and motor-unit recruitment strategy, assessed via dEMG, concomitant to the RBE. METHODS: Nine participants performed 5 sub-maximal isometric trapezoid (ramp-up, hold, ramp-down) contractions at force levels corresponding to 50% and 80% of maximal isometric strength (MVC). Surface EMG signals of the biceps brachii were decomposed into individual motor-unit action potential trains...
2017: PloS One
https://www.readbyqxmd.com/read/29214923/creatine-supplementation-elicits-greater-muscle-hypertrophy-in-upper-than-lower-limbs-and-trunk-in-resistance-trained-men
#18
João Pedro Nunes, Alex S Ribeiro, Brad J Schoenfeld, Crisieli M Tomeleri, Ademar Avelar, Michele Cc Trindade, Hellen Cg Nabuco, Edilaine F Cavalcante, Paulo Sugihara Junior, Rodrigo R Fernandes, Ferdinando O Carvalho, Edilson S Cyrino
BACKGROUND: Creatine (Cr) supplementation associated with resistance training produces greater muscular strength improvements in the upper compared with the lower body; however, no study has investigated if such region-specific results are seen with gains in muscle mass. AIM: We aimed to evaluate the effect of Cr supplementation in combination with resistance training on lean soft tissue changes in the upper and lower limbs and trunk in resistance-trained young adult men...
December 2017: Nutrition and Health
https://www.readbyqxmd.com/read/29213347/restoration-of-elbow-flexion-in-patients-with-complete-traumatic-and-obstetric-brachial-plexus-injury-after-functional-free-gracilis-muscle-transfer-our-experience-and-management
#19
Rahul K Nath, Sean G Boutros, Chandra Somasundaram
Background: Functional free gracilis muscle transfer is an operative procedure for elbow reconstruction in patients with complete brachial plexus nerve and avulsion injuries and in delayed or prolonged nerve denervation, as well as in patients with inadequate upper extremity function after primary nerve reconstruction. Methods: We retrospectively reviewed our patient records and identified 24 patients with complete brachial plexus nerve injury (13 obstetric, 11 males and 2 females; 11 traumatic, 9 males and 2 females) whose affected arm and shoulder were totally paralyzed and their voluntary elbow flexion or the biceps function was poor preoperatively (mean M0-1/5 in MRC grade)...
2017: Eplasty
https://www.readbyqxmd.com/read/29204437/reference-values-of-flexion-and-supination-in-the-elbow-joint-of-a-cohort-without-shoulder-pathologies
#20
Mehmet F Güleçyüz, Matthias F Pietschmann, Stefan Michalski, Ferdinand M Eberhard, Alexander Crispin, Christian Schröder, Maximilian J Mittermüller, Peter E Müller
Background: After surgery of the long head of the biceps tendon, the examination of the biceps brachii muscle function and strength is common clinical practice. The muscle strength is usually compared with the uninjured contralateral side or with a matched pair group assuming that the uninjured side can be used as an appropriate reference. Hypothesis/Purpose: The purpose of this study was to define reference values of the supination and flexion strength in the elbow joint and to investigate the influence of the arm positions and various anthropometric factors...
2017: BioMed Research International
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