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https://www.readbyqxmd.com/read/28063158/muscle-cramp-susceptibility-increases-following-a-volitionally-induced-muscle-cramp
#1
Kevin C Miller, Blaine C Long, Jeffrey E Edwards
INTRODUCTION: Muscle cramping may increase peripheral nervous system excitability. It is unknown if, and how long, cramp susceptibility is affected by previous cramping. We tested whether volitionally-induced muscle cramps (VIMC) lowered cramp threshold frequency (TFc ) and how long TFc was affected post-VIMC. METHODS: Fifteen cramp-prone participants volitionally-induced a flexor hallucis brevis (FHB) cramp on 4 separate days. FHB TFc was measured before VIMC (i...
January 7, 2017: Muscle & Nerve
https://www.readbyqxmd.com/read/28043769/motor-unit-number-index-munix-detects-motor-neuron-loss-in-pre-symptomatic-muscles-in-amyotrophic-lateral-sclerosis
#2
Christoph Neuwirth, Paul E Barkhaus, Christian Burkhardt, José Castro, David Czell, Mamede de Carvalho, Sanjeev Nandedkar, Erik Stålberg, Markus Weber
OBJECTIVE: Motor Unit Number Index (MUNIX) is a quantitative neurophysiological measure that provides an index of the number of lower motor neurons supplying a muscle. It reflects the loss of motor neurons in patients with Amyotrophic Lateral Sclerosis (ALS). However, it is unclear whether MUNIX also detects motor unit loss in strong, non-wasted muscles. METHODS: Three centres measured MUNIX in 49 ALS patients every three months in six different muscles (abductor pollicis brevis, abductor digiti minimi, biceps brachii, tibialis anterior, extensor digitorum brevis, abductor hallucis) on the less affected side...
December 18, 2016: Clinical Neurophysiology: Official Journal of the International Federation of Clinical Neurophysiology
https://www.readbyqxmd.com/read/28031505/z-plasty-of-the-flexor-hallucis-longus-tendon-at-tarsal-tunnel-for-checkrein-deformity
#3
Jae Hoon Lee, Young Jun Kim, Jong Hun Baek, Dong Hee Kim
PURPOSES: To review the outcome of Z-plasty of the flexor hallucis longus (FHL) tendon at the tarsal tunnel for checkrein deformity in 8 patients. METHODS: Records of 6 males and 2 females aged 14 to 67 (mean, 39.5) years who underwent Z-plasty (lengthening) of the FHL tendon at the tarsal tunnel for checkrein deformity in the first and second toes by a single surgeon were reviewed. All patients had undergone 3 months of conservative treatment. The mean time from injury to surgical treatment was 8...
December 2016: Journal of Orthopaedic Surgery
https://www.readbyqxmd.com/read/27989337/review-of-drop-hallux-assessment-and-surgical-repair
#4
Carl A Kihm, Craig A Camasta
Peroneal nerve palsy is common. The hallmark clinical manifestation of peroneal nerve palsy is drop foot. In the drop foot condition, the ankle cannot flex, and the foot does not clear the ground during the swing phase of gait. Spontaneous nerve repair can yield complete or incomplete resolution of drop foot. Some patients with incomplete resolution are left with a drop hallux condition, in which the ankle can dorsiflex, but the hallux remains unable to dorsiflex. This has not been thoroughly discussed in the past, regarding surgical repair...
January 2017: Journal of Foot and Ankle Surgery: Official Publication of the American College of Foot and Ankle Surgeons
https://www.readbyqxmd.com/read/27884263/non-weight-bearing-and-weight-bearing-ultrasonography-of-select-foot-muscles-in-young-asymptomatic-participants-a-descriptive-and-reliability-study
#5
Patrick J Battaglia, Ross Mattox, Brett Winchester, Norman W Kettner
OBJECTIVE: The primary aim of this study was to determine the reliability of diagnostic ultrasound imaging for select intrinsic foot muscles using both non-weight-bearing and weight-bearing postures. Our secondary aim was to describe the change in muscle cross-sectional area (CSA) and dorsoplantar thickness when bearing weight. METHODS: An ultrasound examination was performed with a linear ultrasound transducer operating between 9 and 12 MHz. Long-axis and short-axis ultrasound images of the abductor hallucis, flexor digitorum brevis, and quadratus plantae were obtained in both the non-weight-bearing and weight-bearing postures...
November 2016: Journal of Manipulative and Physiological Therapeutics
https://www.readbyqxmd.com/read/27881830/repair-of-chronic-achilles-ruptures-has-a-high-incidence-of-venous-thromboembolism
#6
Mark J Bullock, William T DeCarbo, Mark H Hofbauer, Joshua D Thun
: Background Despite the low incidence of deep vein thrombosis (DVT) in foot and ankle surgery, some authors report a high incidence of symptomatic DVT following Achilles tendon rupture. The purpose of this study was to identify DVT risk factors inherent to Achilles tendon repair to determine which patients may benefit from prophylaxis. Methods One hundred and thirteen patient charts were reviewed following elective and nonelective Achilles tendon repair. For elective repair of insertional or noninsertional Achilles tendinopathy, parameters examined included lateral versus prone positioning and the presence versus absence of a flexor hallucis longus transfer...
November 23, 2016: Foot & Ankle Specialist
https://www.readbyqxmd.com/read/27836255/combined-flexor-hallucis-longus-tendon-transfer-and-gastrocnemius-recession-for-reconstruction-of-gapped-chronic-achilles-tendon-ruptures
#7
Hatem Elsayed Ahmed Elgohary, Nabil A Elmoghazy, Mohammed Serry Abd Ellatif
OBJECTIVE: The aim of this study was to assess the functional outcomes after a combined FHL transfer and a gastrocnemius recession for treatment of chronic ruptures of Achilles tendon with a gap and to investigate the patient's satisfaction about the great toe function after transfer. MATERIAL AND METHODS: 19 patients with chronic rupture of the Achilles tendon with a gap were treated with a flexor halluces longus tendon transfer combined with a gastrocnemius recession, Clinical diagnosis depends on the presence of gap in the tendon on examination, inability of tip toe walking on the affected side and positive calf-squeeze test, MRI was used to confirm the clinical diagnosis...
December 2016: Injury
https://www.readbyqxmd.com/read/27828846/ultrasound-evaluation-of-intrinsic-plantar-muscles-and-fascia-in-hallux-valgus-a-case-control-study
#8
César Calvo Lobo, Alejandro Garrido Marín, David Rodríguez Sanz, Daniel López López, Patricia Palomo López, Carlos Romero Morales, Irene Sanz Corbalán
A cross-sectional area (CSA) and thickness reduction of the abductor hallucis (AbH) is shown in subjects with hallux valgus (HV). To date, other soft-tissue structures have not been researched in relation with HV. The aim of this study was to compare the CSA and thickness of the intrinsic plantar muscles and fascia (PF) between feet with and without HV. Therefore, a cross-sectional and case-control study was performed using B-mode with an iU22 Philips ultrasound system and a 5 to 17-MHz transducer. The CSA and thickness were measured for the AbH, flexor digitorum brevis (FDB) and flexor hallucis brevis (FHB), and also the thickness for the anterior, middle, and posterior PF portions...
November 2016: Medicine (Baltimore)
https://www.readbyqxmd.com/read/27764110/inferring-muscle-tendon-unit-power-from-ankle-joint-power-during-the-push-off-phase-of-human-walking-insights-from-a-multiarticular-emg-driven-model
#9
Eric C Honert, Karl E Zelik
INTRODUCTION: Inverse dynamics joint kinetics are often used to infer contributions from underlying groups of muscle-tendon units (MTUs). However, such interpretations are confounded by multiarticular (multi-joint) musculature, which can cause inverse dynamics to over- or under-estimate net MTU power. Misestimation of MTU power could lead to incorrect scientific conclusions, or to empirical estimates that misguide musculoskeletal simulations, assistive device designs, or clinical interventions...
2016: PloS One
https://www.readbyqxmd.com/read/27762613/effect-of-vibram-fivefingers-minimalist-shoes-on-the-abductor-hallucis-muscle
#10
Nicholas A Campitelli, Scott A Spencer, Kaitlyn Bernhard, Kristen Heard, Alan Kidon
BACKGROUND: This study investigated the effect of Vibram FiveFingers Bikila minimalist shoes on intrinsic foot musculature. We hypothesized that a gradual transition into minimalist shoes will increase the thickness of the abductor hallucis muscle. METHODS: Forty-one individuals were divided into four groups: control (traditional shod) (n = 9), restricted walking in Vibram FiveFingers (n = 11), running in Vibram FiveFingers (n = 10), and unlimited walking in Vibram FiveFingers (n = 11)...
September 2, 2016: Journal of the American Podiatric Medical Association
https://www.readbyqxmd.com/read/27753733/cauda-equina-conduction-time-determined-by-f-waves-in-normal-subjects-and-patients-with-neurogenic-intermittent-claudication-caused-by-lumbar-spinal-stenosis
#11
Yasuaki Imajo, Tsukasa Kanchiku, Hidenori Suzuki, Masahiro Funaba, Norihiro Nishida, Kazuhiro Fujimoto, Toshihiko Taguchi
INTRODUCTION: Lumbar spinal stenosis (LSS) typically presents with neurogenic intermittent claudication (NIC). The aim is to investigate cauda equina conduction time (CECT) in patients with NIC caused by LSS and its relationship with age and body height in normal subjects. METHODS: The study included 172 normal subjects (mean age 44.1 ± 16.6 years; mean height 163.7 ± 8.9 cm). (Group C) 47 patients (mean age 71.3 ± 8.7 years; mean height 158.8 ± 11.2 cm) underwent surgery due to NIC in cauda equina type for LSS...
October 5, 2016: Journal of Clinical Neurophysiology: Official Publication of the American Electroencephalographic Society
https://www.readbyqxmd.com/read/27746496/reconstruction-of-kuwada-grade-iv-chronic-achilles-tendon-rupture-by-minimally-invasive-technique
#12
Xudong Miao, Yongping Wu, Huimin Tao, Disheng Yang, Lu Huang
BACKGROUND: Transfer of a flexor hallucis longus (FHL) tendon can not only reconstruct the Achilles tendon but also provide ischemic tendinous tissues with a rich blood supply to enhance wound healing. This retrospective study aims to investigate clinical outcomes in patients who underwent repair of Kuwada grade IV chronic Achilles tendon rupture with long hallucis longus tendons harvested using a minimally invasive technique. MATERIALS AND METHODS: 35 patients who were treated for Kuwada grade IV Achilles tendon injuries from July 2006 to June 2011 were included in this retrospective study...
September 2016: Indian Journal of Orthopaedics
https://www.readbyqxmd.com/read/27690528/intrinsic-foot-muscle-activation-during-specific-exercises-a-t2-time-magnetic-resonance-imaging-study
#13
Thomas M Gooding, Mark A Feger, Joseph M Hart, Jay Hertel
CONTEXT: The intrinsic foot muscles maintain the medial longitudinal arch and aid in force distribution and postural control during gait. Impaired intrinsic foot-muscle function has been linked to various foot conditions. Several rehabilitative exercises have been proposed to improve it; however, literature that identifies which individual muscles are activated during specific intrinsic foot-muscle exercises is lacking. OBJECTIVE: To describe changes in activation of the intrinsic plantar foot muscles after 4 exercises as measured with T2 magnetic resonance imaging (MRI)...
August 2016: Journal of Athletic Training
https://www.readbyqxmd.com/read/27676795/distribution-of-branches-of-deep-and-common-fibular-nerves-to-extensor-hallucis-longus-and-extensor-digitorum-longus-muscles-application-to-the-treatment-of-their-hypertonia
#14
Christian Fontaine, Xavier Lannes, Aurélien Aumar, Michel-Yves Grauwin, Nadine Nachef, Étienne Allart
OBJECTIVE: The spastic hemiplegic patient often presents dystonia of extensor hallucis longus (EHL) and, more rarely, extensor digitorum longus (EDL). This dystonia is difficult to treat by tendon lengthening, because its primum movens is purely neurological without retraction musculo-tendinous. A hyponeurotisation by partial section of the branches of the common and deep fibular nerve(s) could be a therapeutic alternative to botulinum toxin injections. Its technique has never been described...
September 2016: Annals of Physical and Rehabilitation Medicine
https://www.readbyqxmd.com/read/27676747/donor-site-morbidity-after-vascularized-free-flap-fibula-gait-analysis-during-prolonged-walk-condition
#15
Nawale Hadouiri, Pierre Decavel, Damien Feuvrier, Bernard Parratte, Julien Pauchot, Yoshimasa Sagawa
OBJECTIVE: Fibula and leg muscles play an important role during gait. The vascularized free fibula flap (VFFF) harvesting procedure could have an impact during short walking distance [1]. However, little is know about the VFFF effect during prolonged walk conditions [2]. The aim of this study was to determine the effect after VFFF harvesting on the evolution of spatiotemporal gait parameters during a 6-Minutes Walk Test (6MWT) and to compare results with those found in healthy persons...
September 2016: Annals of Physical and Rehabilitation Medicine
https://www.readbyqxmd.com/read/27666628/the-clinical-and-radiological-importance-of-extraarticular-contrast-material-leakage-into-adjacent-synovial-compartments-on-ankle-mr-arthrography-in-patients-with-ocd-and-anterolateral-impingement
#16
Hayri Ogul, Yunus Guzel, Berhan Pirimoglu, Kutsi Tuncer, Gokhan Polat, Fatih Ergun, Recep Sade, Ummugulsum Bayraktutan, Ihsan Yuce, Mecit Kantarci
PURPOSE: To evaluate the tibiotalar joint capacity and the localisation, frequency and amount of extravasation in patients with extraarticular contrast material leakage into adjacent synovial compartments on ankle magnetic resonance (MR) arthrography. MATERIALS AND METHODS: Sites of extravasation were determined in the ankle MR arthrograms of 69 patients. Thirty-four patients without extraarticular contrast material leakage into locations unrelated to the injection path were included as a control group...
October 2016: European Journal of Radiology
https://www.readbyqxmd.com/read/27604514/flexor-hallucis-longus-tendon-transfer-fixation-a-biomechanical-analysis-of-the-effects-of-a-terminal-whipstitch-and-bone-tunnel-length
#17
Jessica Lee, Chad Williams, Charles Lowrey, Greg Gould, Ronald Markert, Richard Laughlin
: Introduction Flexor hallucis longus (FHL) tendon transfer to the calcaneus is commonly used in the surgical treatment of chronic Achilles tendinopathy. This study assesses the integrity of FHL tendon biotenodesis screw fixation with respect to 2 variables: incorporation of a terminal whipstitch and tunnel depth. Materials and methods A total of 60 fresh-frozen cadaver FHL tendons and 28 calcanei were harvested for analysis in 4 sets of fixation constructs; 14 whipstitched tendons were compared against their nonwhipstitched paired tendon via pull-out strength load testing, and 16 tendon pairs were randomized for fixation in either a full-depth tunnel (bicortical) or a 25-mm partial tunnel (unicortical)...
September 7, 2016: Foot & Ankle Specialist
https://www.readbyqxmd.com/read/27589967/tarsal-tunnel-disease-and-talocalcaneal-coalition-mri-features
#18
Erin FitzGerald Alaia, Zehava Sadka Rosenberg, Jenny T Bencardino, Gina A Ciavarra, Ignacio Rossi, Catherine N Petchprapa
OBJECTIVE: To assess, utilizing MRI, tarsal tunnel disease in patients with talocalcaneal coalitions. To the best of our knowledge, this has only anecdotally been described before. MATERIALS AND METHODS: Sixty-seven ankle MRIs with talocalcaneal coalition were retrospectively reviewed for disease of tendons and nerves of the tarsal tunnel. Interobserver variability in diagnosing tendon disease was performed in 30 of the 67 cases. Tarsal tunnel nerves were also evaluated in a control group of 20 consecutive ankle MRIs...
November 2016: Skeletal Radiology
https://www.readbyqxmd.com/read/27570782/diminished-foot-and-ankle-muscle-volumes-in-young-adults-with-chronic-ankle-instability
#19
Mark A Feger, Shannon Snell, Geoffrey G Handsfield, Silvia S Blemker, Emily Wombacher, Rachel Fry, Joseph M Hart, Susan A Saliba, Joseph S Park, Jay Hertel
BACKGROUND: Patients with chronic ankle instability (CAI) have demonstrated altered neuromuscular function and decreased muscle strength when compared with healthy counterparts without a history of ankle sprain. Up to this point, muscle volumes have not been analyzed in patients with CAI to determine whether deficits in muscle size are present following recurrent sprain. PURPOSE: To analyze intrinsic and extrinsic foot and ankle muscle volumes and 4-way ankle strength in young adults with and without CAI...
June 2016: Orthopaedic Journal of Sports Medicine
https://www.readbyqxmd.com/read/27554347/transcranial-magnetic-stimulation-in-the-semi-quantitative-pre-operative-assessment-of-patients-undergoing-spinal-deformity-surgery
#20
Michael A Glasby, Athanasios I Tsirikos, Lindsay Henderson, Gillian Horsburgh, Brian Jordan, Ciara Michaelson, Christopher I Adams, Enrique Garrido
PURPOSE: To compare measurements of motor evoked potential latency stimulated either magnetically (mMEP) or electrically (eMEP) and central motor conduction time (CMCT) made pre-operatively in conscious patients using transcranial and intra-operatively using electrical cortical stimulation before and after successful instrumentation for the treatment of adolescent idiopathic scoliosis. METHODS: A group initially of 51 patients with adolescent idiopathic scoliosis aged 12-19 years was evaluated pre-operatively in the outpatients' department with transcranial magnetic stimulation...
August 23, 2016: European Spine Journal
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