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https://www.readbyqxmd.com/read/28100234/arthroscopic-reduction-and-fixation-of-coronoid-fractures-with-an-exchange-rod-a-new-technique
#1
Kan Ouyang, Daping Wang, Wei Lu, Jianyi Xiong, Jian Xu, Liangquan Peng, Haifeng Liu, Hao Li, Wenzhe Feng
BACKGROUND: The ulnar coronoid process plays a central role in maintaining elbow stability. Some of its fractures were often combined with injury of bone and ligament. Arthroscopy enables perfect visualization to allow anatomical repair. METHODS: From January 2012 to December 2013, six patients (four males, two females) with a mean age of 26.6 years were treated. The left and right ulnas were involved in two and four patients, respectively. All patients suffered from ipsilateral subluxation of the elbow without associated radial fracture...
January 18, 2017: Journal of Orthopaedic Surgery and Research
https://www.readbyqxmd.com/read/28098743/analysis-of-incident-and-accident-reports-and-risk-management-in-spine-surgery
#2
Kazuyoshi Kobayashi, Shiro Imagama, Kei Ando, Tetsuro Hida, Kenyu Ito, Mikito Tsushima, Yoshimoto Ishikawa, Akiyuki Matsumoto, Masayoshi Morozumi, Yoshihiro Nishida, Yoshimasa Nagao, Naoki Ishiguro
STUDY DESIGN: A review of accident and incident reports. OBJECTIVE: To analyze prevalence, characteristics, and details of perioperative incidents and accidents in patients receiving spine surgery. SUMMARY OF BACKGROUND DATA: In our institution, a clinical error that potentially results in an adverse event is usually submitted as an incident or accident report through a web database, to ensure anonymous and blame-free reporting. All reports are analyzed by a medical safety management group...
January 16, 2017: Spine
https://www.readbyqxmd.com/read/28098706/current-trends-in-ulnar-collateral-ligament-reconstruction-surgery-among-newly-trained-orthopaedic-surgeons
#3
Ryan M Degen, Christopher L Camp, Johnathan A Bernard, David M Dines, David W Altchek, Joshua S Dines
INTRODUCTION: Ulnar collateral ligament (UCL) reconstructions are being performed with an increasing annual incidence. The purpose of this study was to evaluate trends in UCL surgery among recently trained orthopaedic surgeons. METHODS: The American Board of Orthopaedic Surgeons (ABOS) database was used to identify all UCL reconstructions from 2004 to 2013. Procedures were identified by Current Procedural Terminology (CPT) codes and verified by International Classification of Disease, Ninth Revision (ICD-9) codes...
February 2017: Journal of the American Academy of Orthopaedic Surgeons
https://www.readbyqxmd.com/read/28095964/f-wave-duration-parameters-as-a-specific-and-sensitive-tool-for-diagnosis-of-restless-legs-syndrome
#4
Patrizia Congiu, Maria Livia Fantini, Giulia Milioli, Paolo Tacconi, Michela Figorilli, Gioia Gioi, Bruno Pereira, Francesco Marrosu, Liborio Parrino, Monica Puligheddu
STUDY OBJECTIVES: Restless legs syndrome, also known as Willis-Ekbom disease (RLS/WED), is a frequent condition, though its pathophysiology is not completely understood. The diagnosis of RLS/WED relies on clinical criteria, and the only instrumental tool, the suggested immobilization test, may lead to equivocal results. Recently, neurophysiological parameters related to F-wave duration have been proposed as a diagnostic aid. The aim of this study is to assess and compare the diagnostic values of these parameters in diagnosis of RLS/WED...
January 11, 2017: Journal of Clinical Sleep Medicine: JCSM: Official Publication of the American Academy of Sleep Medicine
https://www.readbyqxmd.com/read/28094192/risk-factors-for-revision-surgery-following-isolated-ulnar-nerve-release-at-the-cubital-tunnel-a-study-of-25-977-cases
#5
Christopher L Camp, Claire B Ryan, Ryan M Degen, Joshua S Dines, David W Altchek, Brian C Werner
BACKGROUND: The literature investigating risk factors for failure after decompression of the ulnar nerve at the elbow (cubital tunnel release [CuTR]) is limited. The purpose of this study was to identify risk factors for failure of isolated CuTR, defined as progression to subsequent ipsilateral revision surgery. METHODS: The 100% Medicare Standard Analytic Files from 2005 to 2012 were queried for patients undergoing CuTR. Patients undergoing any concomitant procedures were excluded...
January 13, 2017: Journal of Shoulder and Elbow Surgery
https://www.readbyqxmd.com/read/28092337/anatomical-basis-and-clinical-application-of-synovial-flaps-in-the-wrist-and-distal-forearm
#6
David L Colen, Jiun-Ting Yeh, Lawrence B Colen
Neuropathic symptoms after median nerve repair at the wrist or secondary to refractory carpal tunnel syndrome may become debilitating. These symptoms develop due to perineural adhesions, intraneural fibrosis and fixation of the nerve to the transverse carpal ligament after surgery and often require neurolysis. Interposition of vascularized soft tissue over the median nerve at the time of neurolysis prevents recurrence of such adhesions. The synovial flap, fashioned from the synovial lining of the flexor tendon sheath, is an ideal tissue for this purpose...
January 12, 2017: Plastic and Reconstructive Surgery
https://www.readbyqxmd.com/read/28089807/ultrasonography-detects-ulnar-nerve-dislocation-despite-normal-electrophysiology-and-magnetic-resonance-imaging
#7
Jared M Pisapia, Zarina S Ali, Eric D Hudgins, Viviane Khoury, Gregory G Heuer, Eric L Zager
BACKGROUND: Dislocation of the ulnar nerve (UN) occurs in a subset of patients with ulnar neuropathy. Electrodiagnostic and magnetic resonance imaging (MRI) studies are performed to support the clinical diagnosis. We report the case of a patient with ulnar neuropathy with normal electrodiagnostic and MRI studies but with ultrasound (US) showing UN dislocation, which prompted successful treatment by UN submuscular transposition. CASE DESCRIPTION: A healthy 15 year-old female softball player presented with right medial elbow pain and paresthesias of the fourth and fifth digits...
January 12, 2017: World Neurosurgery
https://www.readbyqxmd.com/read/28059646/irreversible-changes-occurring-in-long-term-denervated-schwann-cells-affect-delayed-nerve-repair
#8
Giulia Ronchi, Michele Cillino, Giovanna Gambarotta, Benedetta Elena Fornasari, Stefania Raimondo, Pierfrancesco Pugliese, Pierluigi Tos, Adriana Cordova, Francesco Moschella, Stefano Geuna
OBJECTIVE Multiple factors may affect functional recovery after peripheral nerve injury, among them the lesion site and the interval between the injury and the surgical repair. When the nerve segment distal to the lesion site undergoes chronic degeneration, the ensuing regeneration (when allowed) is often poor. The aims of the current study were as follows: 1) to examine the expression changes of the neuregulin 1/ErbB system during long-term nerve degeneration; and 2) to investigate whether a chronically denervated distal nerve stump can sustain nerve regeneration of freshly axotomized axons...
January 6, 2017: Journal of Neurosurgery
https://www.readbyqxmd.com/read/28054138/-ultrasound-guided-interventions-on-the-peripheral-nervous-system
#9
A Loizides, L Gruber, S Peer, M Plaikner, H Gruber
CLINICAL/METHODICAL ISSUE: Up to the advent of high-resolution ultrasound, interventions on the peripheral nervous system, including local anesthesia and pain treatment were performed without visual guidance, which in some cases led to treatment failure or local tissue and nerve damage. METHODICAL INNOVATIONS: Progress in the field of ultrasound has enabled the functional visualization, anesthesia and anti-inflammatory or neurolytic treatment of many peripheral nerves, such as the brachial plexus, nerves of the upper and lower extremities and various nerves of the trunk...
January 4, 2017: Der Radiologe
https://www.readbyqxmd.com/read/28049512/a-stab-wound-to-the-axilla-illustrating-the-importance-of-brachial-plexus-anatomy-in-an-emergency-context-a-case-report
#10
Diogo Casal, Teresa Cunha, Diogo Pais, Inês Iria, Maria Angélica-Almeida, Gerardo Millan, José Videira-Castro, João Goyri-O'Neill
BACKGROUND: Although open injuries involving the brachial plexus are relatively uncommon, they can lead to permanent disability and even be life threatening if accompanied by vascular damage. We present a case report of a brachial plexus injury in which the urgency of the situation precluded the use of any ancillary diagnostic examinations and forced a rapid clinical assessment. CASE PRESENTATION: We report a case of a Portuguese man who had a stabbing injury at the base of his left axilla...
January 4, 2017: Journal of Medical Case Reports
https://www.readbyqxmd.com/read/28049434/why-does-a-cooled-object-feel-heavier-psychophysical-investigations-into-the-weber-s-phenomenon
#11
James S Dunn, David A Mahns, Saad S Nagi
BACKGROUND: It has long been known that a concomitantly cooled stimulus is perceived as heavier than the same object at a neutral temperature-termed Weber's Phenomenon (WP). In the current study, we re-examined this phenomenon using well-controlled force and temperature stimuli to explore the complex interplay between thermal and tactile systems, and the peripheral substrates contributing to these interactions. A feedback-controlled apparatus was constructed using a mechanical stimulator attached to a 5- × 5-mm thermode...
January 3, 2017: BMC Neuroscience
https://www.readbyqxmd.com/read/28040075/results-of-geriatric-distal-radius-fractures-treated-by-intramedullary-fixation
#12
Steffi S I Falk, Thomas Mittlmeier, Georg Gradl
INTRODUCTION: Distal radius fracture are common injuries but no gold standard for their therapy exists. The aim of this study was to evaluate the quality of fracture care in distal radius fractures using an intramedullary implant (Targon DR interlocking nail). The nail had been developed to minimize the surgical exposure, increase fixation strength, to prevent tendon irritations and to allow for a fast return to activity. PATIENTS AND METHODS: Prospective study reports the result of 43 patients with an age over 70 years (range 70-91 years) treated by closed reduction and intramedullary fixation...
December 2016: Injury
https://www.readbyqxmd.com/read/28032001/sensory-reanimation-of-the-hand-by-transfer-of-the-superficial-branch-of-the-radial-nerve-to-the-median-and-ulnar-nerve
#13
Thilo L Schenck, Shenyu Lin, Jessica K Stewart, Konstantin C Koban, Michaela Aichler, Farid Rezaeian, Riccardo E Giunta
BACKGROUND: It remains a surgical challenge to treat high-grade nerve injuries of the upper extremity. Extra-anatomic reconstructions through the transfer of peripheral nerves have gained clinical importance over the past decades. This contribution outlines the anatomic and histomorphometric basis for the transfer of the superficial branch of the radial nerve (SBRN) to the median nerve (MN) and the superficial branch of the ulnar nerve (SBUN). METHODS: The SBRN, MN, and SBUN were identified in 15 specimens and the nerve transfer performed...
December 2016: Brain and Behavior
https://www.readbyqxmd.com/read/28030514/the-effect-of-vitamin-d-supplementation-on-pain-quality-of-life-and-nerve-conduction-studies-in-women-with-chronic-widespread-pain
#14
Gulseren Akyuz, Canan Sanal-Toprak, Ilker Yagci, Esra Giray, Pinar Kuru-Bektasoglu
The aim of this study was to investigate the effects of vitamin D supplementation on pain, quality of life, and nerve conduction studies (NCSs) in women with chronic widespread pain (CWP) diagnosed with Vitamin D insufficiency. Thirty-three female participants with CWP and vitamin D insufficiency were included in this open-label trial. They were evaluated by routine NCSs in upper and lower limbs, pain scales, and the Nottingham Health Profile before and 8 weeks after starting vitamin D supplementation therapy...
December 27, 2016: International Journal of Rehabilitation Research. Revue Internationale de Recherches de Réadaptation
https://www.readbyqxmd.com/read/28027845/differences-in-the-treatment-of-distal-radius-fractures-by-hand-fellowship-trained-surgeons-a-study-of-abos-candidate-data
#15
Sean Childs, Tobias Mann, Jason Dahl, John Ketz, Warren C Hammert, Peter M Murray, John Elfar
PURPOSE: The management of distal radius fractures differs based on the nature of the fracture and the experience of the surgeon. We hypothesized that patients requiring surgical intervention would undergo different procedures when in the care of a surgeon with subspecialty training in hand surgery as compared with surgeons with no subspecialty training in hand surgery. METHODS: We queried the ABOS database for case log information submitted for part II of the ABOS examination...
December 24, 2016: Journal of Hand Surgery
https://www.readbyqxmd.com/read/28012095/anatomical-variability-and-histological-structure-of-the-ulnar-nerve-in-the-guyon-s-canal
#16
Paweł Depukat, Brandon Michael Henry, Patrick Popieluszko, Joyeeta Roy, Ewa Mizia, Tomasz Konopka, Krzysztof A Tomaszewski, Jerzy A Walocha
OBJECTIVES: The goal of our study was to analyze the prevalence of variations, branching patterns, and histology of the ulnar nerve (UN) in Guyon's canal to address its importance in hand surgery, particularly decompression of the UN. METHODS: Fifty fresh cadavers were dissected bilaterally, and the nerve in the area of Guyon's canal was visualized. Samples for histology were also taken and prepared. The collected data were then analyzed. RESULTS: Morphometric measurements of the hands and histological studies were not found to have significant differences when compared by left or right side or by sex...
December 23, 2016: Archives of Orthopaedic and Trauma Surgery
https://www.readbyqxmd.com/read/28006886/neuromuscular-effect-of-dexmedetomidine-on-sevoflurane-an-open-label-dose-escalation-clinical-trial
#17
Hui H Ke, Huang H Wu, Qi Zhu, Yan Zhang, Jin R Xiao, Xiu Z Su, Wan J Zheng, Yu P Cai, Xiao Z Wu, Yu T Wang, Guo Z Chen
BACKGROUND: Sevoflurane presents reliable central neuromuscular effects. However, little knowledge is available regarding the interaction between sevoflurane and demedetomidine. We evaluated the neuromuscular effect of dexmedetomidine on sevoflurane in patients with normal neuromuscular transmission and calculated the 50% effective concentration (EC50). METHODS: One-hundred and forty-four ASA grade I~II patients with normal neuromuscular transmission, aged 20~60 years old, undergoing lower limbs surgery were enrolled in this open- label, dose-escalation clinical trial...
December 22, 2016: Minerva Anestesiologica
https://www.readbyqxmd.com/read/28006854/quantification-of-human-upper-extremity-nerves-and-fascicular-anatomy
#18
Natalie A Brill, Dustin J Tyler
INTRODUCTION: This paper provides detailed quantification of upper extremity nerve and fascicular anatomy. The purpose is to provide values and trends in neural features useful for clinical applications and neural interface device design. METHODS: Nerve cross sections were taken from 4 ulnar, 4 median, and 3 radial nerves from 5 arms of 3 human cadavers. Quantified nerve features included cross sectional area, minor diameter, and major diameter. Fascicular features analyzed included count, perimeter, area, and position...
December 22, 2016: Muscle & Nerve
https://www.readbyqxmd.com/read/28000493/accessory-coracobrachialis-muscle-with-two-bellies-and-abnormal-insertion-case-report
#19
George Paraskevas, Konstantinos Koutsouflianiotis, Kalliopi Iliou, Theodosis Bitsis, Panagiotis Kitsoulis
OBJECTIVE: In the current study a brief review is presented of the coracobrachialis muscle's morphological variability, action, embryological development and clinical significance. CASE REPORT: We report a case of a left-sided coracobrachialis muscle consisting of two bellies. The deep belly inserts into the usual site in the middle area of the anteromedial aspect of the left humerus, whereas the superficial belly inserts through a muscular slip into the brachial fascia and the medial intermuscular septum, forming a musculo-aponeurotic tunnel in the middle region of the left arm, for the passage of the median nerve, brachial artery and veins, medial antebrachial cutaneous nerve and ulnar nerve...
November 2016: Acta Medica Academica
https://www.readbyqxmd.com/read/28000233/multifocal-sensory-demyelinating-neuropathy-report-of-a-case
#20
Shin J Oh
INTRODUCTION: Multifocal sensory demyelinating neuropathy has not been reported. METHOD: A 42-year-old man with numbness of the left hand for 3 years and of the right hand for 6 months had a pure multifocal sensory neuropathy involving both hands, most prominently affecting 2-point discrimination, number writing, and object recognition in the left hand. Near-nerve needle sensory and mixed nerve conduction studies were performed in the left ulnar nerve. RESULTS: Studies of the left ulnar nerve documented a demyelinating neuropathy characterized by temporal dispersion and marked decrease in the amplitudes of the sensory and mixed compound nerve potentials in the above elbow-axilla segment...
December 21, 2016: Muscle & Nerve
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