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Hand Surg. 2013;18(2):209-14. doi: 10.1142/S0218810413500251.

Comparative study on the stiffness of transverse carpal ligament between normal subjects and carpal tunnel syndrome patients.

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  • 1Department of Orthopaedic Surgery, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan.

Abstract

The purpose of this study was to compare the stiffness of the transverse carpal ligament (TCL) between healthy volunteers and carpal tunnel syndrome (CTS) patients using sonoelastography. We studied 17 healthy volunteers (four men, 13 women; range 37-84 years) and 18 hands of 13 patients with CTS (three men, ten women; range 41-79 years). Thickness and elasticity of the TCL were evaluated by sonoelastography. Elasticity was estimated by strain ratio of an acoustic coupler, which has a standardized elasticity as a reference medium, to the TCL (AC/T strain ratio). The AC/T strain ratios of the healthy volunteers and the CTS patients were 6.0 and 8.1, respectively (p = 0.030). The AC/T strain ratio showed a positive correlation with the duration of symptoms in the CTS patients (p = 0.035, r = 0.50). We concluded that increased stiffness of the TCL could be one of the causes for CTS.

PMID:
24164125
[PubMed - indexed for MEDLINE]
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