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https://www.readbyqxmd.com/read/29052827/primary-exploration-for-radial-nerve-palsy-associated-with-unstable-closed-humeral-shaft-fracture
#1
Soo Hong Han, In Tae Hong, Ho Jae Lee, Sang June Lee, Uk Kim, Dong Won Kim
BACKGROUND: The treatment of radial nerve palsy caused by closed humeral shaft fracture is a matter of debate. The purpose of this study is to evaluate the outcome of early surgical management of radial nerve palsy in patients with unstable closed humeral shaft fractures and to determine whether patients with this injury should be surgically explored. METHODS: Medical records of 15 consecutive patients who had undergone open reduction and internal fixation for unstable closed humeral shaft fractures were reviewed...
September 2017: Ulusal Travma Ve Acil Cerrahi Dergisi, Turkish Journal of Trauma & Emergency Surgery: TJTES
https://www.readbyqxmd.com/read/29049718/wide-field-oct-angiography-investigation-of-the-relationship-between-radial-peripapillary-capillary-plexus-density-and-nerve-fiber-layer-thickness
#2
Yali Jia, Joseph M Simonett, Jie Wang, Xiaohui Hua, Liang Liu, Thomas S Hwang, David Huang
Purpose: To characterize the density and distribution of the radial peripapillary capillary plexus (RPCP) and its relationship with retinal nerve fiber layer (NFL) thickness in healthy subjects. Methods: Using spectral-domain optical coherence tomography (OCT), split-spectrum amplitude decorrelation angiography algorithm and automated montaging, wide-field OCT angiography (OCTA) was used to measure the RPCP capillary density (CD) and NFL thickness. Polar sector-average CD and thickness maps were also created on each eye...
October 1, 2017: Investigative Ophthalmology & Visual Science
https://www.readbyqxmd.com/read/29045968/-comparative-results-of-non-operative-and-operative-treatment-of-humeral-shaft-fractures
#3
B S Zhang, W Y Li, X H Liu, J Wei, L He, M Y Wang
OBJECTIVE: To compare the difference between non-operative and operative treatment of humeral shaft fractures. METHODS: From March 2005 to October 2012, 252 cases of humeral shaft fractures were treated and were adequately followed up. According to the treatment methods, the patients were divided into 2 groups: the non-operative group and the operative group. In the non-operative group, there were 76 cases treated with plaster/small splint fixation,meanwhile there were 176 cases treated with internal fixation either by plating or by nailing in the operative group...
October 18, 2017: Beijing da Xue Xue Bao. Yi Xue Ban, Journal of Peking University. Health Sciences
https://www.readbyqxmd.com/read/29042331/the-first-experience-of-triple-nerve-transfer-in-proximal-radial-nerve-palsy
#4
Mohammadreza Emamhadi, Sasan Andalib
BACKGROUND: Injury to distal of posterior cord of brachial plexus leads to palsy of the radial and axillary nerves. The symptoms are usually motor deficits of the deltoid muscle, triceps brachii muscle, and the extensor muscles of the wrist, thumb and fingers. Tendon transfers, nerve grafts, and nerve transfers are options of surgical treatment of proximal radial nerve palsy to restore some motor functions. Tendon transfer is painful, requires a long immobilization, and decreases donor muscle strength; nevertheless, nerve transfer produces promising outcome...
October 14, 2017: World Neurosurgery
https://www.readbyqxmd.com/read/29033898/functional-characterization-of-paralogous-gonadotropin-releasing-hormone-type-and-corazonin-type-neuropeptides-in-an-echinoderm
#5
Shi Tian, Michaela Egertová, Maurice R Elphick
Homologs of the vertebrate neuropeptide gonadotropin-releasing hormone (GnRH) have been identified in invertebrates, including the insect neuropeptide corazonin (CRZ). Recently, we reported the discovery of GnRH-type and CRZ-type signaling systems in an echinoderm, the starfish Asterias rubens, demonstrating that the evolutionary origin of paralogous GnRH-type and CRZ-type neuropeptides can be traced back to the common ancestor of protostomes and deuterostomes. Here, we have investigated the physiological roles of the GnRH-type (ArGnRH) and the CRZ-type (ArCRZ) neuropeptides in A...
2017: Frontiers in Endocrinology
https://www.readbyqxmd.com/read/29030674/magnetic-resonance-neurography-normal-values-and-demographic-determinants-of-nerve-caliber-and-t2-relaxometry-in-60-healthy-individuals
#6
Moritz Kronlage, Véronique Schwehr, Daniel Schwarz, Tim Godel, Sabine Heiland, Martin Bendszus, Philipp Bäumer
PURPOSE: To establish normal values and to identify demographic determinants of quantitative biomarkers in magnetic resonance neurography (MRN). METHODS: In this study 60 healthy individuals (5 men and 5 women of every decade between 20 and 80 years) were examined according to a standardized MRN protocol at 3 T, including multiecho T2 relaxometry. Nerve cross-sectional area (CSA), transverse relaxation time (T2), and proton spin density (PSD) were assessed for the sciatic, tibial, median, ulnar, and radial nerves...
October 13, 2017: Clinical Neuroradiology
https://www.readbyqxmd.com/read/29023304/association-of-insulin-and-cholesterol-levels-with-peripheral-nervous-system-function-in-overweight-adults-a-3-year-follow-up
#7
Henri Isojärvi, Sirkka Keinänen-Kiukaanniemi, Mika Kallio, Kaisu Kaikkonen, Timo Jämsä, Juha Korpelainen, Raija Korpelainen
PURPOSE: The purpose of this prospective 3-year follow-up was to investigate the association of glucose, insulin, and cholesterol levels with peripheral nervous system function in overweight and obese subjects. METHODS: Forty nondiabetic overweight and obese adults were enrolled, of whom 29 completed the follow-up. Peripheral nervous system function was measured and defined by conduction studies of the peroneal motor nerve and the radial, sural, and medial plantar sensory nerves...
October 10, 2017: Journal of Clinical Neurophysiology: Official Publication of the American Electroencephalographic Society
https://www.readbyqxmd.com/read/29021878/displaced-supracondylar-humerus-fractures-in-children-are-they-all-identical
#8
S K Gera, McH Tan, Y G Lim, Kbl Lim
Introduction: This study aims to ascertain if there are any differences in supracondylar fractures between children under seven years of age and those above 7 years of age. Materials and Methods: All cases of displaced humerus supracondylar fractures that required surgical stabilization were identified and retrospectively reviewed. Demographic data, mode of injury, associated neurovascular injuries and details of surgery performed were obtained from clinical records. The Gartland classification and the extent of comminution of fractures were also documented from review of radiographs...
July 2017: Malaysian Orthopaedic Journal
https://www.readbyqxmd.com/read/29018652/anastomotic-aneurysm-formation-after-high-flow-bypass-surgery-a-case-report-with-histopathological-study
#9
Tatsuya Uchida, Masanori Yoshino, Shinji Ito, Takayuki Hara
Bypass surgery is often used in the treatment of large and giant aneurysms. Major complications that often arise during the perioperative period include cranial nerve palsy, ischemic complications, and hyperperfusion. However, there have been a few reports about late onset complications such as anastomotic aneurysms. In particular, anastomotic aneurysm after high flow bypasses has never been reported. A 57-year-old woman who had been suffering from left eye pain was diagnosed with a large aneurysm of the left internal carotid artery (ICA) in the cavernous portion...
October 2017: NMC Case Rep J
https://www.readbyqxmd.com/read/29018017/radial-nerve-palsy-due-to-supracondylar-open-fracture-in-a-child
#10
Naoki Yoshida, Yoshihiko Tsuchida
No abstract text is available yet for this article.
October 10, 2017: BMJ Case Reports
https://www.readbyqxmd.com/read/28981156/reconstruction-of-a-near-total-ear-amputation-with-a-neurosensorial-radial-forearm-free-flap-prelaminated-with-porous-polyethylene-implant-and-delay-procedure
#11
Ricardo Horta, Rita Valença-Filipe, Jorge Carvalho, Ricardo Nascimento, Alvaro Silva, Jose Amarante
When an auricular defect is caused by high-energy trauma that causes damage to the surrounding tissues, the patient may be not a candidate for reconstruction with local flaps and free tissue transfer may be necessary. Here we present a case of total auricular reconstruction in a 27 year-old man who had total loss of the left ear and traumatized temporal skin and fascia. A radial forearm flap prelaminated by a porous polyethylene implant was employed. A "printed" ear made of silicone, based on the patient's CT-scan of the contralateral ear, was used for intraoperative molding of the future reconstruction...
October 5, 2017: Microsurgery
https://www.readbyqxmd.com/read/28981150/nerve-ultrasound-reliability-of-upper-limbs-effects-of-examiner-training
#12
Rocio C Garcia-Santibanez, Alexander R Dietz, Robert C Bucelli, Craig M Zaidman
INTRODUCTION: Duration of training to reliably measure nerve cross-sectional area (CSA) using ultrasound is unknown. METHODS: A retrospective review was performed of ultrasound data acquired and recorded by two examiners. - an expert and a trainee with two (novice) or twelve (experienced) months of experience. Data on median, ulnar, and radial nerves was reviewed for 42 patients. RESULTS: Inter-rater reliability was good and varied most with nerve site but little with experience...
October 5, 2017: Muscle & Nerve
https://www.readbyqxmd.com/read/28980312/neural-stem-progenitor-cells-are-activated-during-tail-regeneration-in-the-leopard-gecko-eublepharis-macularius
#13
Eab Gilbert, M K Vickaryous
As for many lizards, the leopard gecko (Eublepharis macularius) can self-detach its tail to avoid predation and then regenerate a replacement. The replacement tail includes a regenerated spinal cord with a simple morphology: an ependymal layer surrounded by nerve tracts. We hypothesized that cells within the ependymal layer of the original spinal cord include populations of neural stem/progenitor cells (NSPCs) that contribute to the regenerated spinal cord. Prior to tail loss, we performed a bromodeoxyuridine pulse-chase experiment and found that a subset of ependymal layer cells (ELCs) were label-retaining after a 140-day chase period...
October 4, 2017: Journal of Comparative Neurology
https://www.readbyqxmd.com/read/28979592/irreparable-radial-nerve-palsy-due-to-delayed-diagnostic-management-of-a-giant-lipoma-at-the-proximal-forearm-resulting-in-a-triple-tendon-transfer-procedure-case-report-and-brief-review-of-literature
#14
Ingo Schmidt
BACKGROUND: Non-traumatic radial nerve palsy (RNP) caused by local tumors is a rare and uncommon entity. METHODS: A 62-year-old female presented with a left non-traumatic RNP, initially starting with weakness only. It was caused by a benign giant lipoma at the proximal forearm that was misdiagnosed over a period of 2 years. The slowly growth of the tumor led to an irreparable overstretching-related partial nerve disruption. For functional recovery of the patient, a triple tendon transfer procedure had to be performed...
2017: Open Orthopaedics Journal
https://www.readbyqxmd.com/read/28976477/diagnostic-value-of-magnetic-resonance-neurography-in-cervical-radiculopathy-plexus-patterns-and-peripheral-nerve-lesions
#15
Daniel Schwarz, Henrich Kele, Moritz Kronlage, Tim Godel, Tim Hilgenfeld, Martin Bendszus, Philipp Bäumer
OBJECTIVE: The aim of this study was to assess the imaging appearance and diagnostic value of plexus and peripheral nerve magnetic resonance neurography (MRN) in cervical radiculopathy. MATERIALS AND METHODS: This prospective study was approved by our institutional ethics committee and written informed consent was obtained from all participants. A total of 24 patients were included with a diagnosis of cervical radiculopathy based on clinical examination, supporting electrophysiological examinations and spinal imaging consistent with the clinical syndrome...
October 2, 2017: Investigative Radiology
https://www.readbyqxmd.com/read/28970996/ultrasound-assisted-posteromedial-portal-placement-of-the-elbow-joint-to-prevent-ulnar-nerve-injury
#16
Hiroshi Ohuchi, Rolando Junior L Torres, Kotaro Shinga, Ken Ichikawa, Yuki Kato, Soichi Hattori, Shin Yamada
Direct posterior and posterolateral portals are the standard portals used in posterior elbow arthroscopy. A posteromedial portal in the elbow is not recommended because of its proximity to the ulnar nerve. However, iatrogenic injuries to the ulnar nerve have been reported after elbow arthroscopy using the standard posterior portals, especially in posteromedial elbow joint pathologies. We present a surgical technique applicable to posteromedial elbow pathology by using ultrasound-assisted posteromedial portal placement of the elbow joint...
August 2017: Arthroscopy Techniques
https://www.readbyqxmd.com/read/28969808/management-of-atraumatic-posterior-interosseous-nerve-palsy
#17
REVIEW
Kohila Vani Sigamoney, Abbas Rashid, Chye Yew Ng
The posterior interosseous nerve (PIN) is susceptible to a number of traumatic and atraumatic pathologies. In this article, we aim to review our current understanding of the etiology, pathology, diagnosis, treatment options, and published outcomes of atraumatic PIN palsy. In general, the etiology of atraumatic PIN palsy can be divided into mechanical, which is caused by an extrinsic compressive force on the nerve, and nonmechanical, which is caused by an intrinsic inflammatory reaction within the nerve. As per this discussion, there are 3 causes for atraumatic PIN palsy...
October 2017: Journal of Hand Surgery
https://www.readbyqxmd.com/read/28967077/morphology-of-the-optic-nerve-head-in-glaucomatous-eyes-with-visual-field-defects-in-superior-or-inferior-hemifield
#18
Antonio Longo, Teresio Avitabile, Maurizio G Uva, Vincenza Bonfiglio, Andrea Russo, Mario D Toro, Salvatore Faro, Michele Reibaldi
PURPOSE: To evaluate the morphology of optic nerve head (ONH) and border tissue (BT) of Elschnig in glaucomatous eyes with visual field defects in superior or inferior hemifield. METHODS: In a case-control study, we included 25 patients with superior arcuate scotoma, 25 patients with inferior arcuate scotoma, and 25 healthy controls. They received visual field testing, measurement of peripapillary retinal nerve fiber layer (RNFL) thickness, and ONH examination in a radial pattern with spectral-domain optical coherence tomography...
September 25, 2017: European Journal of Ophthalmology
https://www.readbyqxmd.com/read/28966851/evaluation-of-collimated-polarized-light-imaging-for-real-time-intraoperative-selective-nerve-identification-in-the-human-hand
#19
K W T K Chin, A F Engelsman, P T K Chin, S L Meijer, S D Strackee, R J Oostra, T M van Gulik
Intraoperative peripheral nerve lesions are common complications due to misidentification and limitations of surgical nerve identification. This study validates a real-time non-invasive intraoperative method of nerve identification. Long working distance collimated polarized light imaging (CPLi) was used to identify peripheral radial nerve branches in a human cadaver hand by their nerve specific anisotropic optical reflection. Seven ex situ and six in situ samples were examined for nerves, resulting after histological validation, in a 100% positive correct score (CPLi) versus 77% (surgeon)...
September 1, 2017: Biomedical Optics Express
https://www.readbyqxmd.com/read/28960445/vascular-branches-from-cutaneous-nerve-of-the-forearm-and-hand-application-to-better-understanding-raynaud-s-disease
#20
K Umemoto, M Ohmichi, Y Ohmichi, T Yakura, N Hammer, D Mizuno, M Naito, T Nakano
INTRODUCTION: Cutaneous nerves have branches called vascular branches (VBs) that reach arteries. VBs are thought to be involved in arterial constriction, and this is the rationale for periarterial sympathectomy as a treatment option for Raynaud's disease. However, the branching patterns and distribution areas of the VBs remain largely unclear. The aim of the present study was to investigate the anatomical structures of the VBs of the cutaneous nerves. MATERIALS AND METHODS: Forty hands and forearms were examined to assess the branching patterns and distribution areas of the VBs of the superficial branch of the radial nerve (SBRN), the lateral antebrachial cutaneous nerve (LACN), the medial antebrachial cutaneous nerve (MACN), and the palmar cutaneous branch of the ulnar nerve (PCUN)...
September 29, 2017: Clinical Anatomy
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