Pre-stress in articular cartilage due to internal swelling pressure

L. A. Setton, Weiyong Gu, W. M. Lai, V. C. Mow

Research output: Chapter in Book/Report/Conference proceedingConference contribution

2 Scopus citations

Abstract

The triphasic theory has been used to calculate the pre-stress in spherical and cylindrical layer models of articular cartilage. In the present study, cartilage was assumed to be homogeneous with a uniform fixed charge density. The tissue is attached to subchondral bone of a given radius of curvature. It has been determined that: 1) the maximum radial elastic stress occurs at the cartilage-bone junction and the maximum circumferential elastic stress occurs at the cartilage surface; 2) radial elastic stress is generally larger than the tangential elastic stress; 3) the maximum elastic stress increases with decreasing radius of curvature for cartilage layers of fixed thickness. The existence of pre-stresses may serve to reduce collagen tension resulting from joint loading, and may also be an important factor in determining the collagen ultrastructure within the cartilage solid matrix.

Original languageEnglish
Title of host publicationAmerican Society of Mechanical Engineers, Bioengineering Division (Publication) BED
Place of PublicationNew York, NY, United States
PublisherPubl by ASME
Pages485-488
Number of pages4
Volume22
ISBN (Print)0791811166
StatePublished - Dec 1 1992
Externally publishedYes
EventWinter Annual Meeting of the American Society of Mechanical Engineers - Anaheim, CA, USA
Duration: Nov 8 1992Nov 13 1992

Other

OtherWinter Annual Meeting of the American Society of Mechanical Engineers
CityAnaheim, CA, USA
Period11/8/9211/13/92

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ASJC Scopus subject areas

  • Engineering(all)

Cite this

Setton, L. A., Gu, W., Lai, W. M., & Mow, V. C. (1992). Pre-stress in articular cartilage due to internal swelling pressure. In American Society of Mechanical Engineers, Bioengineering Division (Publication) BED (Vol. 22, pp. 485-488). Publ by ASME.