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https://www.readbyqxmd.com/read/28430708/the-somatosensory-evoked-potential-in-reaction-time-is-gated-and-elicited-earlier-when-the-motor-response-to-a-somatosensory-cue-is-faster
#1
Koichi Hiraoka, Chisato Kori, Kana Sato
The aim of this study was to investigate whether the somatosensory-evoked potential (SEP) is gated and elicited earlier when a motor response to a somatosensory stimulus is faster. In healthy humans, the left index finger and thumb were pinched in response to a somatosensory stimulus administered over the left median nerve. The SEP elicited by this stimulus when producing a fast motor response was compared with that when producing a slow motor response. The amplitudes of N18 and frontal P40 when producing a fast motor response were smaller than those when producing a slow motor response...
May 24, 2017: Neuroreport
https://www.readbyqxmd.com/read/28412189/mean-5-year-follow-up-for-suture-button-suspensionplasty-in-the-treatment-of-thumb-carpometacarpal-joint-osteoarthritis
#2
Jeffrey Yao, Andre Eu-Jin Cheah
PURPOSE: Suture button suspensionplasty (SBS) has been used to treat thumb carpometacarpal joint osteoarthritis (CMC joint OA). Although promising short-term outcomes have been reported, no outcomes beyond 4 years have been published. The aim of this article is to report intermediate outcomes of SBS. METHODS: We reviewed the charts of 14 patients who underwent 16 SBS procedures for symptomatic thumb CMC joint OA. We recorded demographic data, preoperative Eaton stage, length of follow-up, Quick-Disabilities of the Arm, Shoulder, and Hand questionnaire scores, as well as pinch strength, grip strength, range of motion, and metacarpal subsidence...
April 12, 2017: Journal of Hand Surgery
https://www.readbyqxmd.com/read/28411350/acute-appendicitis-somatosensory-disturbances-head-zones-and-the-differential-diagnosis-of-anterior-cutaneous-nerve-entrapment-syndrome-acnes
#3
Rudi M H Roumen, Wouter Vening, Rosanne Wouda, Marc M Scheltinga
BACKGROUND: Anterior cutaneous nerve entrapment syndrome (ACNES) is a neuropathic abdominal wall pain syndrome typically characterized by locally altered skin sensations. On the other hand, visceral disease may also be associated with similar painful and altered skin sensations ("Head zones"). Aim of the study was to determine if patients with acute appendicitis demonstrated somatosensory disturbances in the corresponding right lower quadrant Head zone. METHODS: The presence of somatosensory disturbances such as hyperalgesia, hypoesthesia, altered cool perception, or positive pinch test was determined in 100 patients before and after an appendectomy...
April 14, 2017: Journal of Gastrointestinal Surgery: Official Journal of the Society for Surgery of the Alimentary Tract
https://www.readbyqxmd.com/read/28400666/limited-incision-carpal-tunnel-release
#4
Sunil Gaba, Sandeep Bhogesha, Onkar Singh
BACKGROUND: Carpal tunnel syndrome (CTS) is the most common peripheral entrapment neuropathy. Limited incision techniques for carpal tunnel release are gaining popularity. The main advantages of these techniques are less scar load, less pillar pain, shorter recovery, and return-to-work time. However, the completeness of release, and risk of neurovascular injury are always a concern. We devised a method of limited incision release with two mini-incisions and use of nasal speculum and a probe...
March 2017: Indian Journal of Orthopaedics
https://www.readbyqxmd.com/read/28383292/corticomotor-excitability-effects-of-peripheral-nerve-electrical-stimulation-to-the-paretic-arm-in-stroke
#5
Hao Liu, Stephanie S Y Au-Yeung
OBJECTIVE: This study aimed to examine the corticomotor excitability changes after peripheral nerve electrical stimulation (PNS) on the stroke-impaired arm. DESIGN: This randomized cross-over study included 32 subjects with chronic stroke. They received a 1-hr PNS or placebo PNS by random order to the ulnar and radial nerves of the paretic arm in separate sessions. The primary outcome was excitability of the corticospinal projections for the contralateral first dorsal interosseous hand muscle in terms of slope of the recruitment curve, peak motor-evoked potential amplitude, and duration of the cortical silent period, measured with transcranial magnetic stimulation on both cerebral hemispheres...
April 5, 2017: American Journal of Physical Medicine & Rehabilitation
https://www.readbyqxmd.com/read/28281294/the-influence-of-wrist-posture-grip-type-and-grip-force-on-median-nerve-shape-and-cross-sectional-area
#6
Jeffrey C Cowley, Joshua Leonardis, David B Lipps, Deanna H Gates
During grasping, the median nerve undergoes mechanical stress in the carpal tunnel which may contribute to carpal tunnel syndrome. This study investigated the effects of wrist posture, grip type, and grip force on the shape and cross-sectional area of the median nerve. Ultrasound examination was used to obtain cross-sectional images of the dominant wrist of 16 healthy subjects (8 male) at the proximal carpal tunnel during grasping. The cross-sectional area, circularity, and axis lengths of the median nerve were assessed in 27 different conditions (3 postures × 3 grip types × 3 force levels)...
March 9, 2017: Clinical Anatomy
https://www.readbyqxmd.com/read/28276992/a-minimally-invasive-approach-for-cubital-tunnel-release-and-ulnar-nerve-transposition
#7
Xu Zhang, Vikas Dhawan, Yadong Yu, Guisheng Zhang, Xinzhong Shao
OBJECTIVES: The aim of the study is to introduce a new minimally invasive technique for ulnar nerve release and transposition. METHODS: From January 2010 to May 2011, 51 patients with cubital tunnel syndrome were treated through a 1.5 to 2 cm incision. Limb functional recovery, scar esthetics, sensitivity of scar, numbness of the operating area, and patient satisfaction were assessed. RESULTS: No wound hematoma nor infection was observed in the group...
May 2017: Physician and Sportsmedicine
https://www.readbyqxmd.com/read/28273894/six-month-efficacy-of-platelet-rich-plasma-for-carpal-tunnel-syndrome-a-prospective-randomized-single-blind-controlled-trial
#8
Yung-Tsan Wu, Tsung-Yen Ho, Yu-Ching Chou, Ming-Jen Ke, Tsung-Ying Li, Guo-Shu Huang, Liang-Cheng Chen
Recently, a few small reports with short follow-up period have shown clinical benefits of platelet-rich plasma (PRP) for peripheral neuropathy including one pilot study and one small, non-randomized trial in patients with carpal tunnel syndrome (CTS). Therefore, we conducted a randomized, single-blind, controlled trial to assess the 6-month effect of PRP in patients with CTS. Sixty patients with unilateral mild-to-moderate CTS were randomized into two groups of 30, namely the PRP and control groups. In the PRP group, patients were injected with one dose of 3 mL of PRP using ultrasound guidance and the control group received a night splint through the study period...
December 2017: Scientific Reports
https://www.readbyqxmd.com/read/28262383/nerve-transfer-versus-nerve-graft-for-reconstruction-of-high-ulnar-nerve-injuries
#9
Asser A Sallam, Mohamed S El-Deeb, Mohamed A Imam
PURPOSE: To assess the efficacy of nerve transfer versus nerve grafting in restoring motor and sensory hand function in patients with complete, isolated high ulnar nerve injuries. METHODS: A retrospective chart review was performed, at a minimum 2 years of follow-up, of 52 patients suffering complete, isolated high ulnar nerve injury between January 2006 and June 2013 in one specialized hand surgery unit. Twenty-four patients underwent motor and sensory nerve transfers (NT group)...
April 2017: Journal of Hand Surgery
https://www.readbyqxmd.com/read/28262309/results-of-endoscopically-assisted-cubital-tunnel-release-without-using-any-specific-instrument
#10
Çağatay Zengin, Mesut Tahta, Özgür Güntürk, Cihan Aslan, Ufuk Şener, Muhittin Şener
BACKGROUND: We aimed to report the clinical and electrophysiological results of patients who were treated with an endoscopically assisted in situ release technique for cubital tunnel syndrome and to show safety and efficacy of this procedure. MATERIALS AND METHODS: Twenty nine patients were included into the study. 13 patients (44.8%) were female, 16 patients (55.2%) were male. The mean age was 44.4 years (range; 22-66 years). Mean follow up period was 16.0 months (range; 7-42 months)...
March 2, 2017: Acta Orthopaedica et Traumatologica Turcica
https://www.readbyqxmd.com/read/28220194/-diagnostic-ability-of-power-measurement-of-different-grip-forms-for-distal-median-nerve-lesion
#11
N Wachter, M Mentzel, G Krischak, C Häderer, J Gülke
BACKGROUND: Peripheral lesions of the median nerve cause characteristic changes of the grip function of the hand. For evaluating grip force changes, measurement by dynamometers (JAMAR dynamometer and pinch dynamometer) is of high relevance. In this study the ability of grip force measurements of different grip forms was evaluated to discriminate between a simulated median nerve lesion and healthy subjects. MATERIAL AND METHODS: In 21 healthy subjects, the grip force of power grip was measured by the JAMAR dynamometer at the second stage including measurement of force at the fingertips and the thenar by a sensor glove...
February 20, 2017: Der Unfallchirurg
https://www.readbyqxmd.com/read/28197789/surgical-outcome-for-severe-cubital-tunnel-syndrome-in-patients-aged-70%C3%A2-years-a-mean-follow-up-of-4-5%C3%A2-years
#12
Jinsong Tong, Bin Xu, Zhen Dong, Chenggang Zhang, Yudong Gu
BACKGROUND: Surgical outcomes for cubital tunnel syndrome have been reported to be satisfactory, but could be compromised by advanced age and severe nerve compression. We aim to evaluate the prognosis of severe cubital tunnel syndrome in patients aged >70 years. METHODS: This retrospective study included 25 patients (26 extremities, all McGowan grade III, age >70 years); 21 underwent subcutaneous transposition and 5 in situ decompression. Postoperative follow-up lasted >2 years...
May 2017: Acta Neurochirurgica
https://www.readbyqxmd.com/read/28167875/locking-plate-arthrodesis-compares-favorably-with-lrti-for-thumb-trapeziometacarpal-arthrosis-early-outcomes-from-a-longitudinal-cohort-study
#13
Nikolas H Kazmers, K J Hippensteel, Ryan P Calfee, Lindley B Wall, Martin I Boyer, Charles A Goldfarb, Richard H Gelberman, Daniel A Osei
BACKGROUND: Trapeziometacarpal arthrodesis (TMA) has been complicated by nonunion and hardware failure. QUESTIONS/PURPOSES: We hypothesized that modification of the TMA technique with a locking cage plate construct would afford reliable bony union while producing greater hand function than trapeziectomy with ligament reconstruction and tendon interposition (LRTI) at early follow-up. METHODS: We enrolled 36 consecutive patients with trapeziometacapal osteoarthritis (14 TMA patients (15 thumbs), 22 LRTI patients (22 thumbs))...
February 2017: HSS Journal: the Musculoskeletal Journal of Hospital for Special Surgery
https://www.readbyqxmd.com/read/27984216/fingertip-replantation-with-palmar-venous-anastomoses-in-children
#14
Gen Wen, Jia Xu, Yi-Min Chai
BACKGROUND: Fingertip amputation in children is difficult to manage using microsurgical replantation techniques and many salvage procedures have failed owing to the nonavailability of suitable veins for anastomosis in the fingertip. This study reviewed our experience of pediatric fingertip replantation involving palmar venous anastomoses and evaluated the clinical outcomes. METHODS: From October 2008 to May 2013, 21 pediatric fingertips that had been completely amputated at or distal to the distal interphalangeal joint of the finger, or at or distal to the interphalangeal joint of the thumb were managed using complete replantation...
June 2017: Annals of Plastic Surgery
https://www.readbyqxmd.com/read/27979334/quantification-of-weakness-caused-by-distal-median-nerve-lesion-by-dynamometry
#15
Nikolaus Johannes Wachter, Martin Mentzel, Raphaela Hütz, Gert D Krischak, Joachim Gülke
INTRODUCTION: In the assessment of hand and upper limb function, grip strength is of major importance. Use of the JAMAR dynamometer has been an accepted test of grip strength and routinely part of the physical examination. PURPOSE OF THE STUDY: The aim of this study was to determine by means of a median nerve block simulating a patient group if the measurement of different types of grip force can improve the quantification of impairment of the hand beyond the sole power grip measurements...
December 12, 2016: Journal of Hand Therapy: Official Journal of the American Society of Hand Therapists
https://www.readbyqxmd.com/read/27894853/concurrent-carpal-tunnel-syndrome-and-pronator-syndrome-a-retrospective-study-of-21-cases
#16
C-W Hsiao, J-T Shih, S-T Hung
PURPOSE: Concurrent carpal tunnel syndrome and pronator syndrome are rarely considered and the proximal compression sites are easily overlooked. We retrospectively studied 21 concurrent cases in our series from 2009 to 2015 and report the results. PATIENTS AND METHODS: The typical symptoms were pain, tingling, and numbness of the radial 3½ digits. If paresthesia involved the thenar eminence and proximal forearm pain was noted in cases of carpal tunnel syndrome, carpal tunnel syndrome combined with pronator syndrome was considered...
February 2017: Orthopaedics & Traumatology, Surgery & Research: OTSR
https://www.readbyqxmd.com/read/27891703/an-investigation-into-the-inhibitory-function-of-serotonin-in-diffuse-noxious-inhibitory-controls-in-the-neuropathic-rat
#17
K Bannister, S Lockwood, L Goncalves, R Patel, A H Dickenson
BACKGROUND: Following neuropathy α2-adrenoceptor-mediated diffuse noxious inhibitory controls (DNIC), whereby a noxious conditioning stimulus inhibits the activity of spinal wide dynamic range (WDR) neurons, are abolished, and spinal 5-HT7 receptor densities are increased. Here, we manipulate spinal 5-HT content in spinal nerve ligated (SNL) animals and investigate which 5-HT receptor mediated actions predominate. METHODS: Using in vivo electrophysiology we recorded WDR neuronal responses to von frey filaments applied to the hind paw before, and concurrent to, a noxious ear pinch (the conditioning stimulus) in isoflurane-anaesthetised rats...
April 2017: European Journal of Pain: EJP
https://www.readbyqxmd.com/read/27858573/multiple-nerve-and-tendon-transfers-a-new-strategy-for-restoring-hand-function-in-a-patient-with-c7-t1-brachial-plexus-avulsions
#18
Bin Xu, Zhen Dong, Cheng-Gang Zhang, Yu-Dong Gu
C7-T1 brachial plexus palsies result in a loss of finger motion and hand function. The authors have observed that finger flexion motion can be recovered after a brachialis motor branch transfer. However, finger flexion strength after this procedure merely corresponds to Medical Research Council Grades M2-M3, lowering the grip strength and practical value of the reconstructed hand. Therefore, they used 2 donor nerves and accomplished double nerve transfers for stronger finger flexion. In a patient with a C7-T1 brachial plexus injury, they transferred the pronator teres branch to the anterior interosseous nerve and the brachialis motor branch to the flexor digitorum superficialis branch for reinnervation of full finger flexors...
November 18, 2016: Journal of Neurosurgery
https://www.readbyqxmd.com/read/27857760/galanin-and-its-receptor-system-promote-the-repair-of-injured-sciatic-nerves-in-diabetic-rats
#19
Xiao-Feng Xu, Dan-Dan Zhang, Jin-Chi Liao, Li Xiao, Qing Wang, Wei Qiu
Various studies have reported that galanin can promote axonal regeneration of dorsal root ganglion neurons in vitro and inhibit neuropathic pain. However, little is known about its effects on diabetic peripheral neuropathy, and in vivo experimental data are lacking. We hypothesized that repeated applications of exogenous galanin over an extended time frame may also repair nerve damage in diabetic peripheral neuropathy, and relieve pain in vivo. We found that neuropathic pain occurred in streptozotocin-induced diabetic rats and was more severe after sciatic nerve pinch injury at 14 and 28 days than in diabetic sham-operated rats...
September 2016: Neural Regeneration Research
https://www.readbyqxmd.com/read/27796190/postoperative-physical-therapy-management-of-tendon-transfer-for-digital-wrist-extension-due-to-multifocal-motor-neuropathy
#20
Steve Volpe
Study Design Case report. Background Multifocal motor neuropathy is a progressive motor nerve disorder characterized by muscle weakness in the extremities. Muscle imbalance and weakness can become so severe that the involved extremity can be rendered nonfunctional. The purpose of this case report is to describe the physical therapy postoperative management of a patient who underwent a multiple tendon transfer to correct the loss of digital/wrist extension of the right upper extremity. Case Description A 38-year-old woman with a medical diagnosis of multifocal motor neuropathy, which caused muscle imbalance and weakness in the right hand, underwent a multiple tendon transfer to correct the loss of digit and wrist extension...
December 2016: Journal of Orthopaedic and Sports Physical Therapy
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