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자료유형
학술저널
저자정보
저널정보
대한재활의학회 Annals of Rehabilitation Medicine Annals of Rehabilitation Medicine 제36권 제1호
발행연도
2012.1
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72 - 79 (8page)

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Objective To investigate the correlation of the ultrasonographic wrist-to-forearm median nerve area ratio (WFR)and cross sectional area of median nerve at the wrist (CSA-W) to the electrophysiologic severity in patients with carpal tunnel syndrome (CTS). Method One hundred and ten wrists electrophysiologically graded as mild, moderate, and severe CTS and 38healthy controls underwent ultrasonography of median nerve at the distal wrist crease and mid-forearm. WFR and CSA-W were analyzed according to the severity of CTS. Results WFR was 1.12±0.14, 1.91±0.33, 2.27±0.47 and 3.02±0.97 and the CSAs-W was 7.23±1.67 mm2, 13.51±3.72mm2, 14.67±2.93 mm2, and 18.74±6.01 mm2 in controls, mild (n=28), moderate (n=46), and severe (n=36) CTS,respectively. CSA-W displayed signifi cant diff erences between the control and the mild CTS, moderate CTS and severe CTS groups. However, there was no significant difference between mild CTS and moderate CTS groups. WFR revealed signifi cant diff erence between all groups. Th e sensitivity and specifi city of the WFR in grading the severity of CTS were higher than those of the CSA-W. Conclusion Ultrasonography is a useful complementary tool for the evaluation of CTS. Both WFR and CSA-W are highly correlated with severity grade of CTS. However, WFR is superior to CSA-W for diagnosis and grading of the severity of CTS.

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