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Computational Modelling of the Shape Deviations of the Sphere Surfaces of Ceramic Heads of Hip Joint Replacement
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SYSNO ASEP 0423745 Document Type C - Proceedings Paper (int. conf.) R&D Document Type Conference Paper Title Computational Modelling of the Shape Deviations of the Sphere Surfaces of Ceramic Heads of Hip Joint Replacement Author(s) Fuis, Vladimír (UT-L) RID, ORCID
Koukal, M. (CZ)
Florian, Z. (CZ)
Janíček, Přemysl (UT-L) RIDSource Title XIII Mediterranean Conference on Medical and Biological Engineering and Computing 2013. - Seville : Springer, 2014 / Roa Romero L. - ISSN 1680-0737 - ISBN 978-3-319-00845-5 Pages s. 89-92 Number of pages 4 s. Publication form Print - P Action Mediterranean Conference on Medical and Biological Engineering and Computing 2013 /13./ Event date 25.09.2013-28.09.2013 VEvent location Seville Country ES - Spain Event type EUR Language eng - English Country ES - Spain Keywords total hip replacement ; shape deviations ; roundness ; contact pressure ; frictional moment Subject RIV JR - Other Machinery R&D Projects GA13-34632S GA ČR - Czech Science Foundation (CSF) Institutional support UT-L - RVO:61388998 EID SCOPUS 84891336343 DOI 10.1007/978-3-319-00846-2_22 Annotation The problem of the damage of the bioimplants is very important today. 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 paper is aimed at manufacture perturbations (shape deviations) analysis as one of the possible reasons to this kind of failure. Dimension and of geometry manufacturing perturbations (roundness) were analyzed in detail. 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 2015
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