Publication detail
A NUMERICAL STUDY OF EFFECTS OF THE MANUFACTURE PERTURBATIONS TO CONTACTS OF THE TOTAL HIP REPLACEMENT
KOUKAL, M. FUIS, V. FLORIAN, Z. JANÍČEK, P.
Czech title
Numerická studie vlivu tvarových odchylek na kontakt totální kyčeklní implantát
English title
A NUMERICAL STUDY OF EFFECTS OF THE MANUFACTURE PERTURBATIONS TO CONTACTS OF THE TOTAL HIP REPLACEMENT
Type
journal article - other
Language
en
Original abstract
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.
Czech abstract
Jedním problémem kyčelní endoprotézy je uvolnění jamky z pánevní kosti. Důvodem jsou tvatrové odchylky kulové plochy jamky, které jsou v článku analyzovány a bylo zjistštěno, že výrazně ovlvňují velikost kontaktního tlaku a třecí moment mezi hlavicí a jamkou.
English abstract
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.
Keywords in Czech
Totální kyčelní endoprotéza, MKP, drsnost, kontaktní tlak, biomechanika, třecí moment
Keywords in English
Total hip replacement, FEM, roundness, contact pressure, frictional moment, biomechanics
RIV year
2011
Released
29.04.2011
Location
Brno
ISSN
1802-1484
Volume
18
Number
1
Pages from–to
33–42
Pages count
10
BIBTEX
@article{BUT76519,
author="Milan {Koukal} and Vladimír {Fuis} and Zdeněk {Florian} and Přemysl {Janíček},
title="A NUMERICAL STUDY OF EFFECTS OF THE MANUFACTURE PERTURBATIONS TO CONTACTS OF THE TOTAL HIP REPLACEMENT",
year="2011",
volume="18",
number="1",
month="April",
pages="33--42",
address="Brno",
issn="1802-1484"
}