Document Detail


A non-invasive technique for estimating carpal tunnel pressure by measuring shear wave speed in tendon: A feasibility study.
MedLine Citation:
PMID:  23031416     Owner:  NLM     Status:  Publisher    
Abstract/OtherAbstract:
Although a close relationship between carpal tunnel pressure and median nerve dysfunction has been found, the current methods for pressure measurements are invasive, using a catheter in the carpal canal to monitor the pressure. A noninvasive method for quantifying carpal tunnel pressure would be useful as an alternative to the catheter method. In this study, a simplified experimental model was developed to measure the shear wave speed in a canine Achilles tendon under different tunnel pressures. The results showed that the speed of waves through the inside-tunnel tendon had a linear relationship with the pressure in the tunnel (first measurement: r=0.966, P<0.001; second measurement: r=0.970, P<0.001). This indicates that the tendon could serve as a strain gauge to evaluate the tunnel pressure by detecting the changes of wave propagation speed. However, further validations in human cadavers and clinical subjects are necessary.
Authors:
Yuexiang Wang; Bo Qiang; Xiaoming Zhang; James F Greenleaf; Kai-Nan An; Peter C Amadio; Chunfeng Zhao
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Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2012-9-29
Journal Detail:
Title:  Journal of biomechanics     Volume:  -     ISSN:  1873-2380     ISO Abbreviation:  J Biomech     Publication Date:  2012 Sep 
Date Detail:
Created Date:  2012-10-3     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  0157375     Medline TA:  J Biomech     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
Copyright Information:
Copyright © 2012 Elsevier Ltd. All rights reserved.
Affiliation:
Department of Orthopedic Surgery, Biomechanics Laboratory, Mayo Clinic, Rochester, MN, United States.
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