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[Electrophysiological diagnosis in ulnar nerve entrapment at elbow].
Nihon Seikeigeka Gakkai Zasshi. 1990 Jan; 64(1):7-16.NS

Abstract

Using "inching technique" we recorded antidromic sensory nerve action potentials from the little finger and compound muscle action potentials from the abductor digiti minimi, first dorsal interosseous and flexor carpi ulnaris muscles in 30 entrapped ulnar nerves. In cubital tunnel syndrome, localized conduction delay occurred most commonly at a point 2 to 4 cm distal to the medial epicondyle. In other ulnar neuropathies, with the exception of cubitus valgus deformity, conduction block or delay was noted at a site just distal to the medial epicondyle. These conduction abnormalities were most commonly observed in the abductor digiti minimi and first dorsal interosseous. In contrast, conduction abnormality in tardy palsy secondary to the valgus deformity reflected mainly in the flexor carpi ulnaris. This method provides useful information in diagnosing the early involvement and precise localization of nerve entrapment, and differentiation of cubital tunnel syndrome from other ulnar nerve entrapment.

Authors+Show Affiliations

Department of Orthopaedic Surgery, Nihon University School of Medicine, Tokyo, Japan.No affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info available

Pub Type(s)

English Abstract
Journal Article

Language

jpn

PubMed ID

2319194

Citation

Machida, M, et al. "[Electrophysiological Diagnosis in Ulnar Nerve Entrapment at Elbow]." Nihon Seikeigeka Gakkai Zasshi, vol. 64, no. 1, 1990, pp. 7-16.
Machida M, Usui T, Nagaoka T, et al. [Electrophysiological diagnosis in ulnar nerve entrapment at elbow]. Nihon Seikeigeka Gakkai Zasshi. 1990;64(1):7-16.
Machida, M., Usui, T., Nagaoka, T., Satoh, K., Asai, T., & Itagaki, T. (1990). [Electrophysiological diagnosis in ulnar nerve entrapment at elbow]. Nihon Seikeigeka Gakkai Zasshi, 64(1), 7-16.
Machida M, et al. [Electrophysiological Diagnosis in Ulnar Nerve Entrapment at Elbow]. Nihon Seikeigeka Gakkai Zasshi. 1990;64(1):7-16. PubMed PMID: 2319194.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - [Electrophysiological diagnosis in ulnar nerve entrapment at elbow]. AU - Machida,M, AU - Usui,T, AU - Nagaoka,T, AU - Satoh,K, AU - Asai,T, AU - Itagaki,T, PY - 1990/1/1/pubmed PY - 1990/1/1/medline PY - 1990/1/1/entrez SP - 7 EP - 16 JF - Nihon Seikeigeka Gakkai zasshi JO - Nihon Seikeigeka Gakkai Zasshi VL - 64 IS - 1 N2 - Using "inching technique" we recorded antidromic sensory nerve action potentials from the little finger and compound muscle action potentials from the abductor digiti minimi, first dorsal interosseous and flexor carpi ulnaris muscles in 30 entrapped ulnar nerves. In cubital tunnel syndrome, localized conduction delay occurred most commonly at a point 2 to 4 cm distal to the medial epicondyle. In other ulnar neuropathies, with the exception of cubitus valgus deformity, conduction block or delay was noted at a site just distal to the medial epicondyle. These conduction abnormalities were most commonly observed in the abductor digiti minimi and first dorsal interosseous. In contrast, conduction abnormality in tardy palsy secondary to the valgus deformity reflected mainly in the flexor carpi ulnaris. This method provides useful information in diagnosing the early involvement and precise localization of nerve entrapment, and differentiation of cubital tunnel syndrome from other ulnar nerve entrapment. SN - 0021-5325 UR - https://www.unboundmedicine.com/medline/citation/2319194/[Electrophysiological_diagnosis_in_ulnar_nerve_entrapment_at_elbow]_ L2 - https://www.medicalonline.jp/meteo_linkout.php?issn=0021-5325&volume=64&issue=1&spage=7 DB - PRIME DP - Unbound Medicine ER -