Skip to main content

Part of the book series: IFMBE Proceedings ((IFMBE,volume 47))

  • 2118 Accesses

Abstract

Idiopathic carpal tunnel syndrome (CTS) affects a significant portion of the population, although its exact etiology remains unknown. Based on dynamic ultrasonographic examination of the carpal tunnel inlet, in thumb and index finger (IF) flexion, we observed that the tendon(s) moves in the volar-ulnar direction, displacing the median nerve in the same direction. In middle finger (MF) flexion, however, the tendon moves dorsa-radially, leading to the volar-ulnar movement of the nerve. Median nerve and tendon displacements increased from thumb, IF and MF flexion. These general motion patterns were applied to a patient-specific computer-generated model of the carpal tunnel to determine the associated pressures. Motions in which the tendons move volarly, as in IF and thumb flexion, elicit greater nerve contact and von Mises stresses than those in which the tendons move in a dorsal-ulnar direction, as in MF flexion. Nerve displacement was also not directly correlated with nerve stress. The utilization of finite element modeling allows direct quantification of stresses within the tunnel without any invasive procedures, and may provide insight into the changing intra-carpal mechanics as CTS develops, which may lead to more effective CTS treatment.

This is a preview of subscription content, log in via an institution to check access.

Access this chapter

Subscribe and save

Springer+ Basic
EUR 32.99 /Month
  • Get 10 units per month
  • Download Article/Chapter or eBook
  • 1 Unit = 1 Article or 1 Chapter
  • Cancel anytime
Subscribe now

Buy Now

Chapter
USD 29.95
Price excludes VAT (USA)
  • Available as PDF
  • Read on any device
  • Instant download
  • Own it forever
eBook
USD 129.00
Price excludes VAT (USA)
  • Available as PDF
  • Read on any device
  • Instant download
  • Own it forever
Softcover Book
USD 169.99
Price excludes VAT (USA)
  • Compact, lightweight edition
  • Dispatched in 3 to 5 business days
  • Free shipping worldwide - see info

Tax calculation will be finalised at checkout

Purchases are for personal use only

Institutional subscriptions

Preview

Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.

Similar content being viewed by others

Author information

Authors and Affiliations

Authors

Editor information

Editors and Affiliations

Rights and permissions

Reprints and permissions

Copyright information

© 2015 Springer International Publishing Switzerland

About this paper

Cite this paper

Liong, K., Lee, S.J., Lahiri, A., Lee, H.P. (2015). Carpal Tunnel Biomechanics – Displacement and Associated Intra-Carpal Tunnel Pressure Studies during Finger Flexion. In: Su, FC., Wang, SH., Yeh, ML. (eds) 1st Global Conference on Biomedical Engineering & 9th Asian-Pacific Conference on Medical and Biological Engineering. IFMBE Proceedings, vol 47. Springer, Cham. https://doi.org/10.1007/978-3-319-12262-5_23

Download citation

  • DOI: https://doi.org/10.1007/978-3-319-12262-5_23

  • Publisher Name: Springer, Cham

  • Print ISBN: 978-3-319-12261-8

  • Online ISBN: 978-3-319-12262-5

  • eBook Packages: EngineeringEngineering (R0)

Publish with us

Policies and ethics