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Radial nerve entrapment

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
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
Eda Gürçay, Özgür Zeliha Karaahmet, Murat Kara, Şule Şahin Onat, Ayşe 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...
July 31, 2016: Pain Medicine: the Official Journal of the American Academy of Pain Medicine
(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
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
Thaís Rodrigues, Pablo Brea Winckler, Vitor Félix-Torres, Pedro Schestatsky
INTRODUCTION: Carpal tunnel syndrome (CTS) is the most common nerve entrapment in clinical practice affecting the median nerve at the wrist level. Most electrophysiological ways to diagnose CTS are painful, time consuming and with a variable sensitivity. AIMS: To assess the accuracy of an unusual test for CTS investigation and correlate it with clinical symptoms. METHODS: Initially, we applied a visual analogue scale for CTS discomfort (CTS-VAS) and performed a standard electrophysiological test for CTS diagnosis (median-ulnar velocity comparison)...
April 26, 2016: Journal of Clinical Neurophysiology: Official Publication of the American Electroencephalographic Society
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
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
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
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
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
E Vergara-Amador, A Ramírez
INTRODUCTION: The cause of the tunnel syndrome is the entrapment of the posterior interosseous nerve, and can occur due to different anatomic structures, the arcade of Frohse being the main one of them. PURPOSE: To describe the anatomic relation between the extensor carpi radialis brevis (ECRB) muscle and the motor branch of the radial nerve at its entrance under the arcade of Frohse. MATERIALS AND METHODS: An anatomic dissection of 21 elbows of fresh human cadavers was conducted, describing the deep aponeurosis and the superomedial tendinous arch of ECRB and its relation with the motor branch of the radial nerve...
December 2015: Orthopaedics & Traumatology, Surgery & Research: OTSR
C K Spies, L P Müller, J Oppermann, W F Neiss, P Hahn, F Unglaub
OBJECTIVE: Open decompression of the superficial radial nerve is performed at the distal forearm in cases of circumscript entrapment. Broad-based entrapments can be treated by endoscopically assisted decompression. INDICATIONS: Entrapment of the nerve along its course between the brachioradialis and extensor carpi radialis longus muscles or tendons. Persistent neuropathic pain with Tinel's sign. Numbness distal to the entrapment in accordance to nerval innervation...
April 2016: Operative Orthopädie und Traumatologie
J Torres da Costa, J Santos Baptista, Mário Vaz
BACKGROUND: Musculoskeletal disorders are one of the most common work-related diseases. Frequently this association is thought to have a temporal cause-effect relation. The absence of accessible diagnostic criteria and ethological cause-effect demonstration are probably important reasons for the lack of good evidence data on these pathologies. OBJECTIVE: For these reasons, the authors aim to present a systematic review on prevalence and incidence of the upper limb WRMSD...
2015: Work: a Journal of Prevention, Assessment, and Rehabilitation
Gregory T Carter, Michael D Weiss
Proximal median (PMNE) and radial (RNE) nerve entrapment syndromes are uncommon. This article provides an evidenced-based treatment guideline for PMNE and RNE based on the available literature. Arriving at an accurate diagnosis must involve an electrodiagnostic (EDx) workup. EDx, including nerve conduction velocity studies and needle electromyography, should corroborate the clinical diagnosis and must be done before consideration of any surgical treatment. Conservative care includes rest, modified activities, splinting at wrist and elbow, physical therapy, antiinflammatory drug therapy, and corticosteroid injections...
August 2015: Physical Medicine and Rehabilitation Clinics of North America
Nash H Naam, Steven B Carr, Abdel Hakim A Massoud
PURPOSE: To review 15 patients who were treated for intraneural ganglions of the hand and wrist. METHODS: Between 1990 and 2012, 15 patients were treated for intraneural ganglions of the hand and wrist. There were 9 women and 6 men, averaged age 42 years. Ten patients presented with a mass and 5 with symptoms of entrapment neuropathy. The ganglions involved the ulnar nerve at the wrist in 5 patients, the dorsal branch of the ulnar nerve in 2, the superficial radial nerve in 2, a digital nerve in 4, and the dorsal branch of a digital nerve in 2...
August 2015: Journal of Hand Surgery
Ozkan Kose, Omer Faruk Kilicaslan, Ferhat Guler, Baver Acar, Halil Yalçın Yuksel
OBJECTIVE: The purpose of this study was to present the functional outcomes and complications after primary repair of triceps tendon ruptures (TTR). PATIENTS AND METHODS: A retrospective review was performed on eight patients (six males, two females) who underwent transosseous suture repair for TTR. Mayo elbow score, range of motion, muscle strength and patient satisfaction were evaluated after at least 1-year follow-up. RESULTS: The mean age of the patients was 25...
October 2015: European Journal of Orthopaedic Surgery & Traumatology: Orthopédie Traumatologie
A Heckel, M Weiler, A Xia, M Ruetters, M Pham, M Bendszus, S Heiland, P Baeumer
PURPOSE: To investigate the potential of diffusion tensor imaging (DTI) parameters as in-vivo biomarkers of axon and myelin sheath integrity of the median nerve in the carpal tunnel as validated by correlation with electrophysiology. METHODS: MRI examinations at 3T including DTI were conducted on wrists in 30 healthy subjects. After manual segmentation of the median nerve quantitative analysis of fractional anisotropy (FA) as well as axial, radial and mean diffusivity (AD, RD, and MD) was carried out...
2015: PloS One
Naohito Hibino, Yoshitaka Hamada
We report a rare case of entrapment of the median nerve following a closed fracture of the proximal one-fourth of the radius in an adolescent in failure of back hand spring. We proposed that the forearm pronation and the wrist extension in, "the Back Handspring position" made the median nerve close to the radius at one-fourth proximal radius, played an important role in this complication.
June 2015: Journal of Hand and Microsurgery
Koichiro Dozono, Akiko Hachisuka, Futoshi Wada, Kenji Hachisuka
BACKGROUND: Poststroke patients reportedly experience entrapment neuropathies in the nonparetic upper extremities, and the use of an assistive device for long periods may increase this risk. We examined nerve conduction velocities in hemiparetic patients and investigated the relationship between abnormal measurements and duration of walking. METHODS: Twenty-eight male hemiparetic outpatients who used a cane or a crutch participated in this study. Clinical characteristics such as age, period of time from stroke onset, side and severity of paresis, activities of daily living, and basic ability to walk, as well as each patient's approximate number of hours walking per day, were collected...
August 2015: Journal of Stroke and Cerebrovascular Diseases: the Official Journal of National Stroke Association
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