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https://www.readbyqxmd.com/read/28442854/biceps-rerouting-after-forearm-osteotomy-an-effective-treatment-strategy-for-severe-supination-deformity-in-obstetric-plexus-palsy
#1
W P Metsaars, M Biegstraaten, R G H H Nelissen
Study Design Retrospective cohort study. Objective Supination deformity in obstetric brachial plexus injury can have debilitating consequences for the functionality of the hand. Surgical treatment by a forearm osteotomy has a recurrence rate of 20 to 42%. As a complement to forearm osteotomy, a biceps rerouting may improve outcome. Methods Children with residual brachial plexus injury, who had a forearm osteotomy for a supination contracture and had a postoperative decrease of pronation to 50 degrees or less, were indicated for a biceps rerouting...
April 2017: Journal of Hand and Microsurgery
https://www.readbyqxmd.com/read/28434835/use-of-a-bicortical-button-to-safely-repair-the-distal-biceps-in-a-two-incision-approach-a-cadaveric-analysis
#2
Jonathan D Barlow, Ryan J McNeilan, Amy Speeckaert, Corey T Beals, Hisham M Awan
PURPOSE: No consensus has been reached on the most effective anatomic approach or fixation method for distal biceps repair. It is our hypothesis that, using a cortical biceps button through a 2-incision technique, the distal biceps can be safely and anatomically repaired. METHODS: A 2-incision biceps button distal biceps repair was completed on 10 fresh-frozen cadavers. The proximity of the guide pin to the critical structures of the forearm, including the posterior interosseous nerve and recurrent radial artery, was measured...
April 20, 2017: Journal of Hand Surgery
https://www.readbyqxmd.com/read/28431883/primary-repair-of-traumatic-distal-biceps-ruptures-in-a-military-population-clinical-outcomes-of-single-versus-2-incision-technique
#3
Brian R Waterman, Lorenzo Navarro-Figueroa, Brett D Owens
PURPOSE: To determine the success of distal biceps repair in a high-demand military population and to comparatively evaluate the perioperative risk profile, functional results, and adverse patient outcomes of a single- versus 2-incision technique within this high-risk group. METHODS: Between 2007-2013, all military service members undergoing primary surgical repair for distal biceps rupture through the Military Health System were isolated. Patients with allograft tendon reconstruction, revision procedures, nonmilitary status, and/or follow-up of less than 24 month were excluded...
April 18, 2017: Arthroscopy: the Journal of Arthroscopic & related Surgery
https://www.readbyqxmd.com/read/28427422/differences-in-muscle-activity-and-temporal-step-parameters-between-lokomat-guided-walking-and-treadmill-walking-in-post-stroke-hemiparetic-patients-and-healthy-walkers
#4
Klaske van Kammen, Anne M Boonstra, Lucas H V van der Woude, Heleen A Reinders-Messelink, Rob den Otter
BACKGROUND: The Lokomat is a robotic exoskeleton that can be used to train gait function in hemiparetic stroke. To purposefully employ the Lokomat for training, it is important to understand (1) how Lokomat guided walking affects muscle activity following stroke and how these effects differ between patients and healthy walkers, (2) how abnormalities in the muscle activity of patients are modulated through Lokomat guided gait, and (3) how temporal step characteristics of patients were modulated during Lokomat guided walking...
April 20, 2017: Journal of Neuroengineering and Rehabilitation
https://www.readbyqxmd.com/read/28427290/a-real-time-method-for-decoding-the-neural-drive-to-muscles-using-single-channel-intra-muscular-emg-recordings
#5
Saeed Karimimehr, Hamid Reza Marateb, Silvia Muceli, Marjan Mansourian, Miguel Angel Mañanas, Dario Farina
The neural command from motor neurons to muscles - sometimes referred to as the neural drive to muscle - can be identified by decomposition of electromyographic (EMG) signals. This approach can be used for inferring the voluntary commands in neural interfaces in patients with limb amputations. This paper proposes for the first time an innovative method for fully automatic and real-time intramuscular EMG (iEMG) decomposition. The method is based on online single-pass density-based clustering and adaptive classification of bivariate features, using the concept of potential measure...
March 20, 2017: International Journal of Neural Systems
https://www.readbyqxmd.com/read/28426263/using-contingent-reinforcement-to-augment-muscle-activation-after-perinatal-brachial-plexus-injury-a-pilot-study
#6
S V Duff, B Sargent, J J Kutch, J Berggren, B E Leiby, L Fetters
AIM: Examine the feasibility of increasing muscle activation with electromyographically (EMG)-triggered musical-video as reinforcement for children with perinatal brachial plexus injury (PBPI). METHODS: Six children with PBPI (9.3 ± 6.3 months; 5 female, 1 male) and 13 typically developing (TD) controls (7.8 ± 3.5 months; 4 female, 9 males) participated. The left arm was affected in 5/6 children with PBPI. We recorded the integral (Vs) of biceps activation with surface EMG during two conditions per arm in one session: (1) 100 second (s) baseline without reinforcement and (2) 300 s reinforcement (musical-video triggered to play with biceps activation above threshold [V])...
April 20, 2017: Physical & Occupational Therapy in Pediatrics
https://www.readbyqxmd.com/read/28424870/high-intensity-interval-training-does-not-impair-strength-gains-in-response-to-resistance-training-in-premenopausal-women
#7
Paulo Gentil, Claudio Andre Barbosa de Lira, Suedi Gonçalves Cardoso Filho, Cauê Vazquez La Scala Teixeira, James Steele, James Fisher, Juliana Alves Carneiro, Mário Hebling Campos
PURPOSE: To compare the increases in upper- and lower-body muscle strength in premenopausal women performing resistance training (RT) alone or alongside concurrent high-intensity interval training (CT). METHODS: Sixteen women (26-40 years) were randomly assigned into two groups that performed either RT or CT. Both groups performed the same RT program; however, CT performed additional high-intensity interval training (HIIT) on a bicycle ergometer before RT. The study lasted 8 weeks and the participants were tested for ten repetition maximum (10RM) load in elbow flexion (barbell biceps curl) and knee extension exercises pre- and post-intervention...
April 19, 2017: European Journal of Applied Physiology
https://www.readbyqxmd.com/read/28424850/incidence-and-mri-characterization-of-the-spectrum-of-posterolateral-corner-injuries-occurring-in-association-with-acl-rupture
#8
Eduardo Frois Temponi, Lúcio Honório de Carvalho Júnior, Adnan Saithna, Mathieu Thaunat, Bertrand Sonnery-Cottet
OBJECTIVE: To determine the incidence and MRI characteristics of the spectrum of posterolateral corner (PLC) injuries occurring in association with anterior cruciate ligament (ACL) rupture. MATERIALS AND METHODS: We carried out a level IV, retrospective case series study. All patients clinically diagnosed with an ACL rupture between July 2015 and June 2016 who underwent MRI of the knee were included in the study. In addition to standard MRI knee reporting, emphasis was placed on identifying injury to the PLC and a description of involvement of these structures by two musculoskeletal radiologists...
April 20, 2017: Skeletal Radiology
https://www.readbyqxmd.com/read/28422559/the-influence-of-ambulatory-aid-on-lower-extremity-muscle-activation-during-gait
#9
Michael Sanders, Anton E Bowden, Spencer Baker, Ryan Jensen, McKenzie Nichols
CONTEXT: Foot and ankle injuries are common, and often require a non-weight bearing period of immobilization for the involved leg. This non-weight bearing period usually results in muscle atrophy for the involved leg. There is a dearth of objective data describing muscle activation for different ambulatory aids that are used during the aforementioned non-weight bearing period. OBJECTIVE: To compare activation amplitudes for four leg muscles during (1) able-bodied gait and (2) ambulation involving three different ambulatory aids that can be used during the acute phase of foot and ankle injury care...
April 19, 2017: Journal of Sport Rehabilitation
https://www.readbyqxmd.com/read/28420353/the-influence-of-fatigue-and-chronic-low-back-pain-on-muscle-recruitment-patterns-following-an-unexpected-external-perturbation
#10
Júlia Jubany, Lieven Danneels, Rosa Angulo-Barroso
BACKGROUND: Chronic low back pain (CLBP) has been associated with altered trunk muscle responses as well as increased muscle fatigability. CLBP patients and fatigued healthy subjects could experience similar neuromuscular strategies to attempt to protect the spine. The current study examined muscle activation differences between healthy and CLBP subjects following a perturbation. In addition, the possible role of muscle fatigue was evaluated by investigating the healthy control subjects in a non-fatigued and a fatigued condition...
April 19, 2017: BMC Musculoskeletal Disorders
https://www.readbyqxmd.com/read/28419811/augmentation-of-distal-biceps-repair-with-an-acellular-dermal-graft-restores-native-biomechanical-properties-in-a-tendon-deficient-model
#11
Christine Conroy, Paul Sethi, Craig Macken, David Wei, Marc Kowalsky, Raffy Mirzayan, Leo Pauzenberger, Felix Dyrna, Elifho Obopilwe, Augustus D Mazzocca
BACKGROUND: The majority of distal biceps tendon injuries can be repaired in a single procedure. In contrast, complete chronic tears with severe tendon substance deficiency and retraction often require tendon graft augmentation. In cases with extensive partial tears of the distal biceps, a human dermal allograft may be used as an alternative to restore tendon thickness and biomechanical integrity. HYPOTHESIS: Dermal graft augmentation will improve load to failure compared with nonaugmented repair in a tendon-deficient model...
April 1, 2017: American Journal of Sports Medicine
https://www.readbyqxmd.com/read/28417038/anomalous-innervation-of-the-median-nerve-in-the-arm-in-the-absence-of-the-musculocutaneous-nerve
#12
Khursheed Raza, Seema Singh, Neerja Rani, Raghav Mishra, Kamakshi Mehta, Saroj Kaler
The brachial plexus innervates the upper extremities. While variations in the formation of the brachial plexus and its terminal branches are quite common, it is uncommon for the median nerve to innervate the muscles of the arm. During the dissection of an elderly male cadaver at the Department of Anatomy, All India Institute of Medical Sciences, New Delhi, India, in 2016, the coracobrachialis muscle was found to be supplied by a direct branch from the lateral root of the median nerve and the musculocutaneous nerve was absent...
February 2017: Sultan Qaboos University Medical Journal
https://www.readbyqxmd.com/read/28417037/additional-muscle-slip-of-bicipital-aponeurosis-and-its-anomalous-relationship-with-the-median-cubital-vein
#13
Nandini Bhat, Kumar M R Bhat, Antony S D'Souza, Sushma R Kotian
The cubital region of the arm is a common site for recording blood pressure, taking blood for analysis and administering intravenous therapy and blood transfusions. During the routine dissection of a 70-year-old male cadaver at the Kasturba Medical College, Manipal, Karnataka, India, in 2015, it was observed that the aponeurotic insertion of the biceps brachii muscle divided into two slips. The medial slip fused normally with the deep fascia of the forearm, while flexor carpi radialis muscle fibres originated from the lateral slip...
February 2017: Sultan Qaboos University Medical Journal
https://www.readbyqxmd.com/read/28416354/unilateral-jumps-in-different-directions-a-novel-assessment-of-soccer-associated-power
#14
Conall F Murtagh, Jos Vanrenterghem, Andrew O'Boyle, Ryland Morgans, Barry Drust, Robert M Erskine
OBJECTIVES: We aimed to determine whether countermovement jumps (CMJs; unilateral and bilateral) performed in different directions assessed independent lower-limb power qualities, and if unilateral CMJs would better differentiate between elite and non-elite soccer players than the bilateral vertical (BV) CMJ. DESIGN: Elite (n=23; age, 18.1±1.0years) and non-elite (n=20; age, 22.3±2.7years) soccer players performed three BV, unilateral vertical (UV), unilateral horizontal-forward (UH) and unilateral medial (UM) CMJs...
March 29, 2017: Journal of Science and Medicine in Sport
https://www.readbyqxmd.com/read/28409130/acute-distal-biceps-ruptures-single-incision-repair-by-use-of-suture-anchors
#15
Rafael Almeida Maciel, Priscilla Silva Costa, Eduardo Antônio Figueiredo, Paulo Santoro Belangero, Alberto de Castro Pochini, Benno Ejnisman
OBJECTIVE: Clinical and functional assessment of the surgical treatment for acute injury of the distal insertion of the biceps brachial performed with a surgical technique using a single incision in proximal forearm and fixation with suture anchors in the radial tuberosity. METHODS: This study reviewed the medical records of patients who underwent surgical treatment of distal biceps injury during the period between January 2008 and July 2014. In a mean follow-up of 12 months, 22 patients with complete and acute injury, diagnosed through physical examination and imaging studies, were functionally assessed in the postoperative period regarding the range of motion (degrees of flexion-extension and pronation-supination), the presence of pain (VAS), the Andrews Carson-score, and the Mayo Elbow Performance Score (MEPS)...
March 2017: Revista Brasileira de Ortopedia
https://www.readbyqxmd.com/read/28397457/a-retrospective-evaluation-of-anatomical-reinsertion-of-the-distal-biceps-brachii-tendon-using-an-acl-tightrope%C3%A2-rt-with-a-titanium-cortical-button-and-ultra-high-molecular-weight-polyethylene-suture-a-preliminary-report
#16
Jarosław Witkowski, Maciej Kentel, Aleksandra Królikowska, Paweł Reichert
BACKGROUND: Various surgical techniques for treating distal biceps brachii tendon injury have been described, and to date there is no consensus regarding the preferred fixation method for the anatomic reinsertion of the ruptured tendon. OBJECTIVES: The aim of the study was to clinically and functionally evaluate the upper limb after surgical anatomic reinsertion of the distal biceps brachii tendon using an ACL TightRope® RT with a titanium cortical button and ultra high molecular weight polyethylene (UHMWPE) suture, and to assess postoperative complications...
July 2016: Polimery W Medycynie
https://www.readbyqxmd.com/read/28395965/muscular-echovariation-a-new-biomarker-in-amyotrophic-lateral-sclerosis
#17
Jacinto J Martínez-Payá, María Elena Del Baño-Aledo, José Ríos-Díaz, José I Tembl-Ferrairó, Juan F Vázquez-Costa, Francesc Medina-Mirapeix
The purpose of the work described here was to assess the characteristics of echovariation in amyotrophic lateral sclerosis (ALS) compared with other muscle ultrasonography parameters. Twenty-six ALS patients (8 women, mean age 58.9 y, standard deviation 12.02 y) and 26 healthy controls (17 women, mean age 59.6 y, standard deviation 6.41 y) were included in this observational study. They underwent bilateral and transverse ultrasound of the biceps/brachialis, forearm flexor group, quadriceps femoris and tibialis anterior...
April 7, 2017: Ultrasound in Medicine & Biology
https://www.readbyqxmd.com/read/28395183/interplay-between-body-stabilisation-and-quadriceps-muscle-activation-capacity
#18
Theodoros M Bampouras, Neil D Reeves, Vasilios Baltzopoulos, Constantinos N Maganaris
The study aimed to distinguish the effect of stabilisation and muscle activation on quadriceps maximal isometric voluntary contraction (MVC) torque generation. Nine subjects performed (a) an MVC with restrained leg and pelvis (Typical MVC), (b) a Typical MVC with handgrip (Handgrip MVC), (c) an MVC focusing on contracting the knee extensors only (Isolated knee extension MVC), and (d) an MVC with unrestrained leg and pelvis (Unrestrained MVC). Torque and activation capacity between conditions were compared with repeated measures ANOVA and dependent t-tests...
March 22, 2017: Journal of Electromyography and Kinesiology
https://www.readbyqxmd.com/read/28394829/electromyographical-comparison-of-muscle-activation-patterns-across-three-commonly-performed-kettlebell-exercises
#19
Brian C Lyons, Jerry J Mayo, W Steve Tucker, Ben Wax, Russell C Hendrix
The purpose of this study was to compare the muscle activation patterns of three different kettlebell (KB) exercises using electromyography (EMG). Fourteen resistance-trained subjects completed a one-arm swing (Swing), one-arm swing style snatch (Snatch), and a one-arm clean (Clean) using a self-selected 8-10 RM load for each exercise. Trial sessions consisted of subjects performing 5 repetitions of each kettlebell exercise. Mean EMG was used to assess the muscle activation of the biceps brachii (BB), anterior deltoid (AD), posterior deltoid (PD), erector spinae (ES), vastus lateralis (VL), biceps femoris (BF), contralateral external oblique (EO), and gluteus maximus (GM) during each lift using surface electrodes...
December 20, 2016: Journal of Strength and Conditioning Research
https://www.readbyqxmd.com/read/28392204/arthrographic-anatomy-of-the-biceps-tendon-sheath-potential-implications-for-selective-injection
#20
Nathan Webb, Jonathan Bravman, Alexandria Jensen, Jonathan Flug, Colin Strickland
The purpose of this investigation was to better define the anatomical features of the biceps tendon sheath, including the distance the sheath extends below the inferior margin of the subscapularis tendon and below the termination of the bony bicipital groove. A total of 110 magnetic resonance and computed tomography arthrograms performed during 1-year period at our institution were retrospectively reviewed, and the length of the biceps tendon sheath and distances from the inferior margin of the subscapularis tendon and from the termination of the bicipital groove to the inferior margin of the biceps tendon sheath were measured by 3 radiologists...
February 16, 2017: Current Problems in Diagnostic Radiology
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