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Article
September 14, 1979

Cubital Tunnel Syndrome

Author Affiliations

Cleveland Clinic Case Western Reserve University
Mt Sinai Hospital Case Western Reserve University Cleveland

JAMA. 1979;242(11):1139-1140. doi:10.1001/jama.1979.03300110013011

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Abstract

To the Editor.—  Clark stressed the reliability of his seven tests in preference to electrodiagnostic studies (electromyography and nerve conduction studies) for the diagnosis of the ulnar nerve cubital tunnel syndrome. The seven tests described are all part of a routine neurological examination. In actuality, positive findings on all of these tests reflect an advanced state of deficit. We have seen few patients with symptoms consistent with an ulnar neuropathy with such marked neurological deficit on examination.We are impressed that electrodiagnostic studies can often show accurately, first, the presence (or perhaps more important, the absence) of neuropathy, and second, the exact location of the injury along the nerve, often in the absence of findings on most of the seven tests.If surgery is being considered to relieve a clinically suspected nerve entrapment, electrodiagnostic studies should be performed routinely.

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