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Updated: Aug 4, 2026

Biotribological Testing and Analysis of Articular Cartilage Sliding against Metal for Implants
Published on: May 14, 2020
The influence of basal cartilage calcification on dynamic juxtaarticular stress transmission
D D Anderson1, T D Brown, E L Radin
1Department of Orthopaedic Surgery, University of Iowa, Iowa City.
Abstract:
Dynamic finite element analysis is used to elucidate the manner in which juxtaarticular stress distributions depend on the transitional mechanical properties of the calcified cartilage layer. A finite element model is used to study how these stresses change in response to the thinning of the articular cartilage layer associated with tidemark advancement. The finite element results indicate that shear stress levels within the deepest layer of articular cartilage are increased when tidemark advancement with concomitant cartilage-thinning and calcified cartilage/subchondral plate thickening is modeled. The cartilage-thinning associated with tidemark advancement, observed both clinically and experimentally, may be an explanation for what has previously been considered wear-related thinning.
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