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A Preliminary Theoretical Investigation for Developing an Artificial Meniscus

[+] Author Affiliations
A. Singh, A. Vaziri, H. Nayeb-Hashemi

Northeastern University

Paper No. IMECE2004-62139, pp. 341-342; 2 pages
doi:10.1115/IMECE2004-62139
From:
  • ASME 2004 International Mechanical Engineering Congress and Exposition
  • Advances in Bioengineering
  • Anaheim, California, USA, November 13 – 19, 2004
  • Conference Sponsors: Bioengineering Division
  • ISBN: 0-7918-4703-9 | eISBN: 0-7918-4178-2, 0-7918-4179-0, 0-7918-4180-4
  • Copyright © 2004 by ASME

abstract

Analysis of the stress distribution within cartilages of the human knee joint in response to external loads can help to understand the causes of pathological cartilage degeneration and lead to prevention of injury. Wilson et al [1] demonstrated that by modeling the cartilage material as isotropic, type-2 damage can be explained and with the assumption of transverse isotropic properties, type-1 damage could be explained. In this study, we explore the effect of meniscectomy on the shear stress distribution through the knee joint cartilages by modeling the cartilage as three layers and considering the biphasic properties of the top, middle and deep zones. The results of the analysis indicate that complete meniscectomy of the knee joint induces the maximum shear stress at the cartilages surface to increase substantially. This suggests the need for developing an artificial meniscus that could replace the damaged one.

Copyright © 2004 by ASME

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