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Rehabilitation Practice and Science

Translated Title

超音波作為腕隧道症候群成效及預後因子：以夜間副木治療之研究

Abstract

Background: Controversy exists regarding the use of ultrasonography (US) to assess outcome variables and prognostic indicators of carpal tunnel syndrome (CTS). Objective: To investigate the value of US in evaluating outcomes and prognosis for CTS treated with night splinting. Methods: Fifty-eight hands with mild to moderate CTS were prospectively enrolled; 42 diseased hands completed the study. Satisfaction rating, symptom severity score (SSS), functional status score (FSS), nerve conduction study (NCS) data, and US data were evaluated as outcome variables before and after 3 and 6 months of night splinting. On an intent-to-treat basis, a binary logistic regression analysis was used to determine prognostic indicators of subjective satisfaction and receiver operating characteristic (ROC) curves were plotted. Results: After 6 months of splinting, 29 hands had good subjective outcomes and 13 had poor subjective outcomes. SSS, FSS, sensory conduction velocity (SCV) on NCS, and the cross-sectional area of the median nerve at the pisiform bone level (PCSA) on US improved significantly in hands with good satisfaction but not in hands with poor satisfaction. On an intent-to-treat basis, 29 hands were categorized as good or poor subjective outcomes respectively. According to regression model and the ROC curves, SCV and PCSA were independent prognostic indicators, and the optimal cut-off values of SCV and PCSA for good subjective outcome were ≥40m/s and ≤11.35 mm2 respectively. Conclusions: US is an appropriate tool for assessing outcome variables and a prognostic indicator of night splinting for CTS.

Language

English

First Page

123

Last Page

134

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