Non-invasive assessment of sciatic nerve stiffness during human ankle motion using ultrasound shear wave elastography

Ricardo J. Andrade, Antoine Nordez, François Hug, Filiz Ates, Michel W. Coppieters, Pedro Pezarat-Correia, Sandro R. Freitas

Research output: Contribution to journalArticle

20 Citations (Scopus)

Abstract

Peripheral nerves are exposed to mechanical stress during movement. However the in vivo mechanical properties of nerves remain largely unexplored. The primary aim of this study was to characterize the effect of passive dorsiflexion on sciatic nerve shear wave velocity (an index of stiffness) when the knee was in 90° flexion (knee 90°) or extended (knee 180°). The secondary aim was to determine the effect of five repeated dorsiflexions on the nerve shear wave velocity. Nine healthy participants were tested. The repeatability of sciatic nerve shear wave velocity was good for both knee 90° and knee 180° (ICCs≥0.92, CVs≤8.1%). The shear wave velocity of the sciatic nerve significantly increased (p

Original languageEnglish
Pages (from-to)326-331
Number of pages6
JournalJournal of Biomechanics
Volume49
Issue number3
DOIs
Publication statusPublished - 2016 Feb 8
Externally publishedYes

    Fingerprint

Keywords

  • Noninvasive mechanics
  • Peripheral nerves
  • Sciatic nerve
  • Shear wave velocity
  • Supersonic shear imaging

ASJC Scopus subject areas

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

Cite this

Andrade, R. J., Nordez, A., Hug, F., Ates, F., Coppieters, M. W., Pezarat-Correia, P., & Freitas, S. R. (2016). Non-invasive assessment of sciatic nerve stiffness during human ankle motion using ultrasound shear wave elastography. Journal of Biomechanics, 49(3), 326-331. https://doi.org/10.1016/j.jbiomech.2015.12.017