Publication detail
Computational Modelling of the Shape Deviations of the Sphere Surfaces of Ceramic Heads of Hip Joint Replacement
FUIS, V. KOUKAL, M. FLORIAN, Z. JANÍČEK, P.
Czech title
Výpočtové modelování vlivu tvarových odchylek na kulové ploše keramické hlavice kyčelní endoprotézy
English title
Computational Modelling of the Shape Deviations of the Sphere Surfaces of Ceramic Heads of Hip Joint Replacement
Type
conference paper
Language
en
Original abstract
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.
Czech abstract
Příspěvek se zabývá výpočtovým modelování vlivu tvarových odchylek na kulové ploše keramické hlavice kyčelní endoprotézy na rozložení kontaktního tlaku a na velikost třecího momentu mezi komponentami.
English abstract
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.
Keywords in Czech
totální náhrada kyčelní endoprotézy, tvarové odchylky, nekruhovitost, kontaktní tlak, třecí moment
Keywords in English
total hip replacement, shape deviations, roundness, contact pressure, frictional moment
RIV year
2013
Released
25.09.2013
Publisher
Springer
Location
Seville
ISBN
978-3-319-00845-5
ISSN
1680-0737
Book
XI Mediterranean Conference on Medical and Biological Engineering and Computing 2013
Volume
41
Edition number
Vol. 41
Pages from–to
89–92
Pages count
4
BIBTEX
@inproceedings{BUT104713,
author="Vladimír {Fuis} and Milan {Koukal} and Zdeněk {Florian} and Přemysl {Janíček},
title="Computational Modelling of the Shape Deviations of the Sphere Surfaces of Ceramic Heads of Hip Joint Replacement",
booktitle="XI Mediterranean Conference on Medical and Biological Engineering and Computing 2013",
year="2013",
volume="41",
month="September",
pages="89--92",
publisher="Springer",
address="Seville",
isbn="978-3-319-00845-5",
issn="1680-0737"
}