An examination of the internal stresses in articular cartilage of the human patella

A.N. Hart, R.J. Minns, Farhad Nabhani, D.S. Muckle

Research output: Contribution to journalArticle

Abstract

The computer simulation shows the effect, if any, on the ageing/disease process on the articular cartilage during the forces encountered on a fully loaded knee bend. A finite element model of the patella was produced in which all four of the materials of the patella were taken into account with the addition of simulating the effect of the synovial fluid with a uniform distribution of compression springs acting on the articular surface. A parametric analysis was performed varying the mechanical properties of the articular cartilage to simulate the disease process reflecting changes in the structural composition with progressive degeneration. The results of the simulation indicate that the stresses imposed on the patella do not have an adverse effect. However, the stresses within the cartilage do increase accordingly.
Original languageEnglish
Pages (from-to)171-174
JournalKnee
Volume6
Issue number3
DOIs
Publication statusPublished - 1 Aug 1999

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