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Radial nerve entrapment

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https://www.readbyqxmd.com/read/28417037/additional-muscle-slip-of-bicipital-aponeurosis-and-its-anomalous-relationship-with-the-median-cubital-vein
#1
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/28375915/common-entrapment-neuropathies
#2
Lisa D Hobson-Webb, Vern C Juel
PURPOSE OF REVIEW: This article addresses relevant peripheral neuroanatomy, clinical presentations, and diagnostic findings in common entrapment neuropathies involving the median, ulnar, radial, and fibular (peroneal) nerves. RECENT FINDINGS: Entrapment neuropathies are a common issue in general neurology practice. Early diagnosis and effective management of entrapment mononeuropathies are essential in preserving limb function and maintaining patient quality of life...
April 2017: Continuum: Lifelong Learning in Neurology
https://www.readbyqxmd.com/read/28198531/superficial-brachial-artery-a-possible-cause-for-idiopathic-median-nerve-entrapment-neuropathy
#3
Pilani Nkomozepi, Nkosi Xhakaza, Elaine Swanepoel
Nerve entrapment syndromes occur because of anatomic constraints at specific locations in both upper and lower limbs. Anatomical locations prone to nerve entrapment syndromes include sites where a nerve courses through fibro-osseous or fibromuscular tunnels or penetrates a muscle. The median nerve (MN) can be entrapped by the ligament of Struthers; thickened biceps aponeurosis; between the superficial and deep heads of the pronator teres muscle and by a thickened proximal edge of flexor digitorum superficialis muscle...
February 15, 2017: Folia Morphologica (Warsz)
https://www.readbyqxmd.com/read/28109556/minimally-invasive-lateral-plate-placement-for-metadiaphyseal-fractures-of-the-humerus-and-its-implications-for-the-distal-deltoid-insertion-it-is-not-only-about-the-radial-nerve-a-cadaveric-study
#4
Emanuel Benninger, Christoph Meier
INTRODUCTION: Minimally invasive lateral placement of plates on the humerus may be associated with a risk of injury to the radial nerve. Whereas this potential complication has been investigated in several studies, there is no data regarding potential injuries to the distal insertion of the deltoid muscle when the plates are passed distally in a submuscular tunnel. METHODS: Minimally invasive plate placement was performed on eight arms in fresh cadavers. A lateral deltoid split approach was made and the plates were introduced in an antegrade submuscular manner from proximal to distal...
January 13, 2017: Injury
https://www.readbyqxmd.com/read/28075090/carpal-tunnel-syndrome-diagnosis-and-management
#5
REVIEW
Jennifer Wipperman, Kyle Goerl
Carpal tunnel syndrome, the most common entrapment neuropathy of the upper extremity, is caused by compression of the median nerve as it travels through the carpal tunnel. Classically, patients with the condition experience pain and paresthesias in the distribution of the median nerve, which includes the palmar aspect of the thumb, index and middle fingers, and radial half of the ring finger. Additional clues include positive physical examination findings, such as the flick sign, Phalen maneuver, and median nerve compression test...
December 15, 2016: American Family Physician
https://www.readbyqxmd.com/read/28065869/predictors-of-radial-nerve-palsy-recovery-in-humeral-shaft-fractures-a-retrospective-review-of-17-patients
#6
N Nachef, V Bariatinsky, S Sulimovic, C Fontaine, C Chantelot
BACKGROUND: Radial nerve injury is common in humeral shaft fractures and fails to recover spontaneously in 30% of cases. Few studies have evaluated predictors of recovery. The objectives of this study were to identify predictors of radial nerve palsy recovery and to assess the usefulness of surgical radial nerve exploration in patients with preoperative radial nerve palsy. HYPOTHESIS: Factors predicting the outcome of radial nerve palsy can be identified. METHODS: Of 373 patients with humeral shaft fractures between 2005 and 2012, 43 had radial nerve palsy, including 23 who were lost to follow-up and 17 who were evaluated retrospectively at a mean of 26 months (range, 12-84 months) after internal fixation...
April 2017: Orthopaedics & Traumatology, Surgery & Research: OTSR
https://www.readbyqxmd.com/read/27915068/effects-of-pulsed-ultrasound-therapy-on-sensory-nerve-conduction-parameters-and-the-pain-threshold-perceptions-in-humans
#7
Othmar Schuhfried, Damir Vukanovic, Christian Kollmann, Karin Pieber, Tatjana Paternostro-Sluga
BACKGROUND: Therapeutic ultrasound is an often-used clinical modality in the nonsurgical treatment of entrapment neuropathies. To date, the possible mechanism of action of pulsed ultrasound therapy on the peripheral nerve in the treatment of entrapment neuropathies is unclear. OBJECTIVE: To examine the effects of pulsed ultrasound therapy on peripheral nerve conduction parameters. DESIGN: A prospective, randomized, single blind, crossover study...
November 30, 2016: PM & R: the Journal of Injury, Function, and Rehabilitation
https://www.readbyqxmd.com/read/27902538/ulnar-tunnel-syndrome-radial-tunnel-syndrome-anterior-interosseous-nerve-syndrome-and-pronator-syndrome
#8
Adam B Strohl, David S Zelouf
In addition to the more common carpal tunnel and cubital tunnel syndromes, orthopaedic surgeons must recognize and manage other potential sites of peripheral nerve compression. The distal ulnar nerve may become compressed as it travels through the wrist, which is known as ulnar tunnel or Guyon canal syndrome. The posterior interosseous nerve may become entrapped in the proximal forearm as it travels through the radial tunnel, which results in a pain syndrome without motor weakness. The median nerve may become entrapped in the proximal forearm, which can result in a variety of symptoms...
January 2017: Journal of the American Academy of Orthopaedic Surgeons
https://www.readbyqxmd.com/read/27891411/unusual-presentation-of-radial-nerve-entrapment-with-lateral-humeral-condyle-fracture-a-case-report
#9
Manoharan Muthulingam, Swagat Mahapatra
Lateral humeral condyle fracture is the second most common fracture around the elbow in pediatric age group. Acute neurological deficit as a consequence of nerve injury associated with lateral humeral condyle fractures is very uncommon. We report a rare presentation of a case of lateral humeral condyle fracture in a 13-year-old boy with acute radial nerve palsy. Patient was operated through a modified anterolateral approach to the elbow with, exploration of the radial nerve and internal fixation of the fracture...
October 2016: Journal of Clinical and Diagnostic Research: JCDR
https://www.readbyqxmd.com/read/27625547/scratch-collapse-test-is-a-useful-clinical-sign-in-assessing-long-thoracic-nerve-entrapment
#10
Elizabeth M Pinder, Chye Yew Ng
The scratch collapse test (SCT) is a relatively new clinical test in which a positive result implies entrapment neuropathy of the nerve tested. Initially described for carpal and cubital tunnel syndromes, subsequent authors have found it useful for the assessment of median, ulna, radial, axillary, and common peroneal nerves. We report a case illustrating the value of the SCT in the clinical assessment of thoracic nerve entrapment.
August 2016: Journal of Hand and Microsurgery
https://www.readbyqxmd.com/read/27553247/a-case-of-a-duplicated-superficial-branch-of-radial-nerve-and-a-two-bellied-brachioradialis-muscle-presenting-a-potential-entrapment-syndrome
#11
Tomas Herma, Vaclav Baca, Danylo Yershov, David Kachlik
We have found an interesting coincidental variation of the superficial branch of the radial nerve and the brachioradialis muscle in a male cadaver. The superficial branch of the radial nerve was duplicated with one branch taking an aberrant course between two bellies of the brachioradialis muscle. The variant brachioradialis muscle featured two muscle bellies, a superficial one and a deep one, with one common origin and one common insertional tendon. The accessory nerve branch was impinged by two blood vessels and pierced through muscle bundles connecting two bellies of the brachioradialis muscle...
August 23, 2016: Surgical and Radiologic Anatomy: SRA
https://www.readbyqxmd.com/read/27477582/ultrasonographic-evaluation-of-the-radial-nerves-in-patients-with-unilateral-refractory-lateral-epicondylitis
#12
Eda Gürçay, Özgür Zeliha Karaahmet, Murat Kara, Sule Sahin Onat, Ayse Merve Ata, Ece Ünlü, Levent Özçakar
Objective.: To evaluate the possible radial nerve entrapment of patients with unilateral refractory lateral epicondylitis (LE) by using ultrasound (US) and electroneuromyography. Design.: Cross-sectional study. Setting.: Three physical medicine and rehabilitation departments. Subjects.: Consecutive 44 patients (15 M, 29 F) with unilateral refractory LE. Methods.: All patients underwent detailed clinical, electrophysiological and ultrasonographic evaluations...
March 1, 2017: Pain Medicine: the Official Journal of the American Academy of Pain Medicine
https://www.readbyqxmd.com/read/27469921/value-of-high-frequency-ultrasound-in-the-diagnosis-of-supinator-syndrome
#13
(no author information available yet)
<strong>Objective </strong>To evaluate the diagnostic value of high-frequency ultrasound in the diagnosis of supinator syndrome (SD). <strong>Methods </strong>Ten patients with supinator syndrome (SD group) and 20 healthy volunteers (control group) underwent ultrasonographic examination. Axial and long-axis views of the radial nerve were taken where the nerves enters the supinator muscle entrance. The maximum transverse diameter and anteroposterior diameter were also measured. <strong>Results </strong> High-frequency ultrasound clearly revealed the images and course of radial nerve deep branch in two groups...
June 10, 2016: Zhongguo Yi Xue Ke Xue Yuan Xue Bao. Acta Academiae Medicinae Sinicae
https://www.readbyqxmd.com/read/27327929/strangulation-of-radial-nerve-within-nondisplaced-fracture-component-of-humeral-shaft-fracture
#14
Mark R Adams, John S Hwang, Mark C Reilly, Michael S Sirkin
Rates of radial nerve injury, which is commonly associated with humeral shaft fractures, range from 8% to 12%. This neurapraxia typically recovers with nonoperative management. In some conservatively treated cases, the radial nerve is lacerated or entrapped. Patients with a lacerated or entrapped nerve may have better outcomes with early operative management. We report on a rare case of the radial nerve entrapped within a nondisplaced segment of a closed humeral shaft fracture and describe the clinical outcome of early operative management...
May 2016: American Journal of Orthopedics
https://www.readbyqxmd.com/read/27258600/simultaneous-median-radial-nerve-electrical-stimulation-revisited-an-accurate-approach-to-carpal-tunnel-syndrome-diagnosis-and-severity
#15
Thaís Rodrigues, Pablo B Winckler, Vitor Félix-Torres, Pedro Schestatsky
PURPOSE: To assess the accuracy of an unusual test for CTS investigation and correlate it with clinical symptoms. METHODS: Initially, we applied a visual analog scale for CTS discomfort (CTS-VAS) and performed a standard electrophysiologic test for CTS diagnosis (median-ulnar velocity comparison). Posteriorly, a blinded neurophysiologist performed the orthodromic simultaneous median-radial nerve stimulation (SMRS) at the thumb, with recording of both action potentials over the lateral aspect of the wrist...
December 2016: Journal of Clinical Neurophysiology: Official Publication of the American Electroencephalographic Society
https://www.readbyqxmd.com/read/27171922/chronic-posttraumatic-dislocation-of-radial-head-with-ulnar-nerve-entrapment-in-a-child-a-case-report-and-literature-review
#16
Jiangyu Cai, Wei Wang, Shiyang Yu, Hede Yan, Yulin Zhan, Cunyi Fan
We present an unusual case of chronic posttraumatic anteromedial dislocation of radial head with direct ulnar nerve entrapment in a child. Ulnar nerve decompression, open reduction of the radial head, and annular ligament reconstruction using a palmaris longus tendon graft were performed, and a satisfactory functional outcome was achieved at the 15-month follow-up. Through a review of literature, we conclude that early diagnosis and management for radial head dislocation are recommended to avoid nerve symptoms...
June 2016: Annals of Plastic Surgery
https://www.readbyqxmd.com/read/26764488/assessment-of-median-nerve-mobility-by-ultrasound-dynamic-imaging-for-diagnosing-carpal-tunnel-syndrome
#17
Tai-Tzung Kuo, Ming-Ru Lee, Yin-Yin Liao, Jiann-Perng Chen, Yen-Wei Hsu, Chih-Kuang Yeh
Carpal tunnel syndrome (CTS) is the most common peripheral neuropathy and is characterized by median nerve entrapment at the wrist and the resulting median nerve dysfunction. CTS is diagnosed clinically as the gold standard and confirmed with nerve conduction studies (NCS). Complementing NCS, ultrasound imaging could provide additional anatomical information on pathological and motion changes of the median nerve. The purpose of this study was to estimate the transverse sliding patterns of the median nerve during finger movements by analyzing ultrasound dynamic images to distinguish between normal subjects and CTS patients...
2016: PloS One
https://www.readbyqxmd.com/read/26674101/ultrasound-assessment-on-selected-peripheral-nerve-pathologies-part-i-entrapment-neuropathies-of-the-upper-limb-excluding-carpal-tunnel-syndrome
#18
REVIEW
Berta Kowalska, Iwona Sudoł-Szopińska
Ultrasound (US) is one of the methods for imaging entrapment neuropathies, post-traumatic changes to nerves, nerve tumors and postoperative complications to nerves. This type of examination is becoming more and more popular, not only for economic reasons, but also due to its value in making accurate diagnosis. It provides a very precise assessment of peripheral nerve trunk pathology - both in terms of morphology and localization. During examination there are several options available to the specialist: the making of a dynamic assessment, observation of pain radiation through the application of precise palpation and the comparison of resultant images with the contra lateral limb...
September 2012: Journal of Ultrasonography
https://www.readbyqxmd.com/read/26568728/the-cup-of-diogenes-a-fixed-anatomical-landmark-for-carpal-tunnel-surgery
#19
Matthew T Houdek, Eric R Wagner, Alexander Y Shin
PURPOSE: Carpal tunnel syndrome is a common entrapment neuropathy. When conservative management fails to relieve symptoms, carpal tunnel surgery is indicated. The surgical exposure for this procedure is commonly based on variable anatomic landmarks. The purpose of this study was to describe a fixed, easily referenced anatomical landmark for the distal extension of the transverse carpal ligament, the "Cup of Diogenes." MATERIALS AND METHODS: Topographical landmarks including Kaplan cardinal line, palmaris tendon, and distal palmer crease were marked on six fresh frozen cadaveric wrist and hand specimens...
December 2015: Hand: Official Journal of the American Association for Hand Surgery
https://www.readbyqxmd.com/read/26568719/anatomic-relationships-in-distal-radius-bridge-plating-a-cadaveric-study
#20
Jason Dahl, Daniel J Lee, John C Elfar
BACKGROUND: Two separate approaches have been described for radiocarpal spanning internal fixation for high-energy distal radius fractures with metaphyseal extension. To our knowledge, relevant anatomic relationships and structures at risk for iatrogenic injury have not been identified in the literature. METHODS: Twelve fresh frozen cadaver arms were randomized to fixation with a dorsal radiocarpal spanning plate using one of two techniques: (1) index finger metacarpal fixation (index group) or (2) middle finger metacarpal fixation (middle group)...
December 2015: Hand: Official Journal of the American Association for Hand Surgery
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