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A Numerical Study of Effects of the Manufacture Perturbations to Contacts of the Total Hip Replacement
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SYSNO ASEP 0363664 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Ostatní články Title A Numerical Study of Effects of the Manufacture Perturbations to Contacts of the Total Hip Replacement Author(s) Koukal, M. (CZ)
Fuis, Vladimír (UT-L) RID, ORCID
Florian, Z. (CZ)
Janíček, P. (CZ)Number of authors 4 Source Title Engineering Mechanics. - : Association for Engineering Mechanics - ISSN 1802-1484
Roč. 18, č. 1 (2011), s. 33-42Number of pages 10 s. Language eng - English Country CZ - Czech Republic Keywords total hip replacement ; FEM ; roundness ; contact pressure ; frictional moment Subject RIV BO - Biophysics CEZ AV0Z20760514 - UT-L (2005-2011) Annotation In the endoprosthesis surgery there is a large percentage of implant defects, which cause the failure of the whole prosthesis. One kind of the total hip replacement functionality loss is acetabular cup pull-off from pelvis bone. This article is aimed at manufacture perturbations analysis as one of the possible reasons to this kind of failure. Dimension and of geometry (roundness) manufacturing perturbations were analyzed. It was found, that these perturbations affect considered values of contact pressure and frictional moment. Contact pressure and frictional moment are quantities affecting replacement success and durability. Workplace Institute of Thermomechanics Contact Marie Kajprová, kajprova@it.cas.cz, Tel.: 266 053 154 ; Jana Lahovská, jaja@it.cas.cz, Tel.: 266 053 823 Year of Publishing 2012
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