A non-invasive technique for estimating carpal tunnel pressure by measuring shear wave speed in tendon: A feasibility study

Yuexiang Wang, Bo Qiang, Xiaoming Zhang, James F. Greenleaf, Kai Nan An, Peter C. Amadio, Chunfeng Zhao

Research output: Contribution to journalArticle

21 Scopus citations

Abstract

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.

Original languageEnglish (US)
Pages (from-to)2927-2930
Number of pages4
JournalJournal of Biomechanics
Volume45
Issue number16
DOIs
StatePublished - Nov 15 2012

Keywords

  • Carpal tunnel syndrome
  • Pressure measurement
  • Shear wave

ASJC Scopus subject areas

  • Biophysics
  • Orthopedics and Sports Medicine
  • Biomedical Engineering
  • Rehabilitation

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