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The Ultrasonographic and Electrodiagnostic Findings of Ulnar Neuropathy at the Elbow

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Author(s)
박기영이성문
Alternative Author(s)
Park, Gi YoungLee, Sung Mun
Publication Year
2004
Abstract
Objective

To evaluate and compare the morphologic changes of the ulnar nerve at the elbow, using ultrasonography, between patients with cubital tunnel syndrome and retrocondylar compression syndrome determined with electrodiagnosis.

Design

Prospective study using electrodiagnosis and ultrasonography.

Setting

An outpatient rehabilitation clinic in a tertiary university hospital in South Korea.

Participants

Thirteen patients (8 men, 5 women; mean age, 48.2y).

Interventions

Not applicable.

Main outcome measures

In the electrodiagnostic study, we used the inching technique to localize the ulnar nerve lesion at the elbow. In the ultrasonography study, we measured the length of the swollen ulnar nerve and the ratio of the nerve diameter between the proximal end of the medial epicondyle to the elbow joint level and the tip of medial epicondyle to the elbow joint level.

Results

The mean length of the swollen ulnar nerve segment in retrocondylar compression syndrome (2.58±0.58cm) was significantly longer than that of cubital tunnel syndrome (1.64±0.31cm). The mean ratio of the nerve diameter between the proximal end of medial epicondyle and the elbow joint level was significantly larger in retrocondylar compression syndrome (1.52±0.25) than that of cubital tunnel syndrome (1.06±0.06).

Conclusions

Ultrasonography detected the morphologic changes and the extent of the ulnar nerve lesion at the elbow, and it can become a screening and follow-up imaging modality in patients with ulnar neuropathy at the elbow.

Keywords
Electrodiagnosis;
Rehabilitation;
Ulnar neuropathies;
Ultrasonography
Department
Dept. of Rehabilitation Medicine (재활의학)
Dept. of Radiology (영상의학)
Publisher
School of Medicine
Citation
Archives of Physical Medicine and Rehabilitation, Vol.85(6) : 1000-1005, 2004
Type
Article
ISSN
0003-9993
DOI
10.1016/j.apmr.2003.09.016
URI
http://kumel.medlib.dsmc.or.kr/handle/2015.oak/35082
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