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Influence of meniscus shape in the cross sectional plane on the knee contact mechanics

Abstract

We present a three dimensional finite element analysis of stress distribution and menisci deformation in the human knee joint. The study is based on the Open Knee model with the geometry of the lateral meniscus which shows some degenerative disorders. The nonlinear analysis of the knee joint under compressive axial load is performed. We present results for intact knee, knee with partial and complete radial posterior meniscus root tears and knee with total meniscectomy of medial or lateral meniscus. We investigate how the meniscus shape in the cross sectional plane influences knee-joint mechanics by comparing the results for flat (degenerated) lateral and normal medial meniscus. Specifically, the deformation of the menisci in the coronal plane and the corresponding stress values in cartilages are studied. By analysing contact resultant force acting on the menisci in axial plane we have shown that restricted extrusion of the torn lateral meniscus can be attributed to small slope of its cross section in the coronal plane. Additionally, the change of the contact area and the resultant force acting on the menisci as the function of compressive load is investigated.

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Category:
Articles
Type:
artykuł w czasopiśmie wyróżnionym w JCR
Published in:
JOURNAL OF BIOMECHANICS no. 48, edition 8, pages 1356 - 1363,
ISSN: 0021-9290
Language:
English
Publication year:
2015
Bibliographic description:
Łuczkiewicz P., Daszkiewicz K., Witkowski W., Chróścielewski J., Zarzycki W.: Influence of meniscus shape in the cross sectional plane on the knee contact mechanics// JOURNAL OF BIOMECHANICS. -Vol. 48, iss. 8 (2015), s.1356-1363
DOI:
Digital Object Identifier (open in new tab) 10.1016/j.jbiomech.2015.03.002
Verified by:
Gdańsk University of Technology

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