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Electrodiagnosis of ulnar nerve lesions at the elbow.
Arch Phys Med Rehabil. 1976 May; 57(5):206-12.AP

Abstract

To determine electrical criteria which might be helpful in the diagnosis of ulnar nerve entrapment at the elbow, clinical and electrodiagnostic features in 78 patients with suspected ulnar nerve entrapment at the elbow are described and compared to the results of sensory and motor conduction in the ulnar nerve in a control group of normal persons. These criteria include (1) absent or abnormal evoked sensory nerve action potential in the little finger, (2) motor conduction velocity of less than 45.0 meters/sec in across elbow segment of the ulnar nerve with elbow flexed at 35 degrees, and (3) abnormal electromyographic findings including the presence of increased insertional activity or signs of denervation in the first dorsal interosseous, abductor digiti minimi, and/or flexor carpi ulnaris muscles. Electromyographic abnormality was seen in 77.5% of patients with ulnar motor conduction velocity of less than 45.0 meters/sec across the elbow. The first dorsal interosseous was the most commonly affected muscle. A study of certain important anatomic and histologic factors, such as the arrangement and relative concentration of the motor and sensory fibers at certain key points inthe course of the ulnar nerve trunk, is necessary to understand the correlation between the clinicopathologic and electrodiagnostic features in patients with ulnar nerve entrapment at the elbow.

Authors

No affiliation info available

Pub Type(s)

Journal Article

Language

eng

PubMed ID

1275670

Citation

Bhala, R P.. "Electrodiagnosis of Ulnar Nerve Lesions at the Elbow." Archives of Physical Medicine and Rehabilitation, vol. 57, no. 5, 1976, pp. 206-12.
Bhala RP. Electrodiagnosis of ulnar nerve lesions at the elbow. Arch Phys Med Rehabil. 1976;57(5):206-12.
Bhala, R. P. (1976). Electrodiagnosis of ulnar nerve lesions at the elbow. Archives of Physical Medicine and Rehabilitation, 57(5), 206-12.
Bhala RP. Electrodiagnosis of Ulnar Nerve Lesions at the Elbow. Arch Phys Med Rehabil. 1976;57(5):206-12. PubMed PMID: 1275670.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Electrodiagnosis of ulnar nerve lesions at the elbow. A1 - Bhala,R P, PY - 1976/5/1/pubmed PY - 1976/5/1/medline PY - 1976/5/1/entrez SP - 206 EP - 12 JF - Archives of physical medicine and rehabilitation JO - Arch Phys Med Rehabil VL - 57 IS - 5 N2 - To determine electrical criteria which might be helpful in the diagnosis of ulnar nerve entrapment at the elbow, clinical and electrodiagnostic features in 78 patients with suspected ulnar nerve entrapment at the elbow are described and compared to the results of sensory and motor conduction in the ulnar nerve in a control group of normal persons. These criteria include (1) absent or abnormal evoked sensory nerve action potential in the little finger, (2) motor conduction velocity of less than 45.0 meters/sec in across elbow segment of the ulnar nerve with elbow flexed at 35 degrees, and (3) abnormal electromyographic findings including the presence of increased insertional activity or signs of denervation in the first dorsal interosseous, abductor digiti minimi, and/or flexor carpi ulnaris muscles. Electromyographic abnormality was seen in 77.5% of patients with ulnar motor conduction velocity of less than 45.0 meters/sec across the elbow. The first dorsal interosseous was the most commonly affected muscle. A study of certain important anatomic and histologic factors, such as the arrangement and relative concentration of the motor and sensory fibers at certain key points inthe course of the ulnar nerve trunk, is necessary to understand the correlation between the clinicopathologic and electrodiagnostic features in patients with ulnar nerve entrapment at the elbow. SN - 0003-9993 UR - https://www.unboundmedicine.com/medline/citation/1275670/Electrodiagnosis_of_ulnar_nerve_lesions_at_the_elbow_ DB - PRIME DP - Unbound Medicine ER -