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Journal of the Korean Academy of Rehabilitation Medicine 1999;23(5):974-979.
The Relationship between Clinical and Electrodiagnostic Findings in Carpal Tunnel Syndrome.
Hwang, Mi Ryoung , Kwon, Hee Kyu , Lee, Hang Jae
Department of Rehabilitation Medicine, Korea University College of Medicine.
수근관 증후군의 임상 양상과 전기진단검사의 관계
황미령, 권희규, 이항재
고려대학교 의과대학 재활의학교실

Carpal tunnel syndrome (CTS), a common entrapment neuropathy of the median nerve at the wrist, can be diagnosed clinically and electrophysiologically and treated successfully. The purpose of this study was to determine an association between clinical findings and the electrodiagnostic severity of this syndrome.

Medical records of 313 patients with CTS which was confirmed based on clinical and electrophysiological findings were reviewed. Clinical symptoms and signs (thenar atrophy, sensory change, positive Tinel sign and Phalen test) and electrodiagnostic values were recorded. CTS severity was determined according to the modified Stevens' criteria. The relationship between electrodiagnostic severity and clinical findings was investigated and statistically analyzed using the ANOVA and chi square tests.

The median motor and sensory latencies became prolonged and amplitudes decreased with worsening electrophysiological severity of CTS, and the differences between severity groups were statistically significant. The frequency of symptoms and signs obtained was significantly greater in the more severe CTS groups.

A positive correlation exists between the frequency of clinical findings and electrophysiological severity of CTS.

Key Words: Carpal tunnel syndrome, Electrodiagnosis, Severity, Clinical findings


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