Publication detail
Strain - Stress Analysis of Artificial Hip Joint, Influence of Bearing Material on Contact Pressure
NÁVRAT, T. FUIS, V. HLAVOŇ, P. JANÍČEK, P.
Czech title
Deformačně - napěťová analýza uměleho kyčelního kloubu, vliv materiálu na kontaktní tlak
English title
Strain - Stress Analysis of Artificial Hip Joint, Influence of Bearing Material on Contact Pressure
Type
conference paper
Language
en
Original abstract
Hip resurfacing surgery has been proposed as an alternative to THR for younger more active patients. The metal-on-metal hip resurfacing procedure involves fitting the femoral head with a metal surface and lining the acetabulum with a metal cup to form a pair of metal bearings. Short-term clinical results persuade us to deal with FE analyses because it is important for development of the surface replacement prosthesis. The objective of this contribution is to perform finite-element analyses of computational model of the total surface replacement with different materials of bearing couples (acetabular cup/femoral head) and physiological hip joint. All results will be compared one another and then confronted with results of the physiological hip joint. The three-dimensional computational model consists of these components: sacral, pelvic and femoral bone, muscles, artificial socket, and surface hip replacement. The geometrical models of bones are generated by means of computed tomography (CT) images. The geometry of the surface replacement was proposed. The FE model of bone reflects two types of the bone tissues (trabecular and cortical bone) and muscles that are important when standing on one leg. The model was loaded by force, corresponding to load during slow walking and by standing on one leg.
Czech abstract
Povrchová náhrada byla navržena jako alternativa k totální náhradě kyčelního kloubu. Je určena pro mladší a aktivní pacienty. Procedura nahrazení zahrnuje nahrazení hlavy femuru kovovou tenkostěnnou komponentou a acetabula kovovou jamkou. Cílem práce bylo vykonat deforormačně-napěťovou analýzu kyčelníhou kloubu s aplikovanou povrchovou náhradou pro různé kombinace materiálů jamka/femorální komponenta. Prostorový konečnoprvkový model obsahoval: pánevní, křížovou a stehenní kost, svaly, povrchovou náhradu. Geometrický model byl vytvořen z CT řezů. Uvažujeme stoj na jedné dolní končetině.
English abstract
Hip resurfacing surgery has been proposed as an alternative to THR for younger more active patients. The metal-on-metal hip resurfacing procedure involves fitting the femoral head with a metal surface and lining the acetabulum with a metal cup to form a pair of metal bearings. Short-term clinical results persuade us to deal with FE analyses because it is important for development of the surface replacement prosthesis. The objective of this contribution is to perform finite-element analyses of computational model of the total surface replacement with different materials of bearing couples (acetabular cup/femoral head) and physiological hip joint. All results will be compared one another and then confronted with results of the physiological hip joint. The three-dimensional computational model consists of these components: sacral, pelvic and femoral bone, muscles, artificial socket, and surface hip replacement. The geometrical models of bones are generated by means of computed tomography (CT) images. The geometry of the surface replacement was proposed. The FE model of bone reflects two types of the bone tissues (trabecular and cortical bone) and muscles that are important when standing on one leg. The model was loaded by force, corresponding to load during slow walking and by standing on one leg.
Keywords in English
Biomechanics, Finite element analysis, Resurfacing prosthesis, Hip joint
RIV year
2006
Released
27.08.2006
Publisher
Springer-Verlag Berlin Heidelberg
Location
Seoul
ISBN
3-540-36839-6
Book
World Congress on Medical Physics and Biomedical Engineering
Journal
Nezařazené články
Edition number
1
Pages from–to
2822–2825
Pages count
4
BIBTEX
@inproceedings{BUT20180,
author="Tomáš {Návrat} and Vladimír {Fuis} and Pavel {Hlavoň} and Přemysl {Janíček},
title="Strain – Stress Analysis of Artificial Hip Joint, Influence of Bearing Material on Contact Pressure",
journal="Nezařazené články",
booktitle="World Congress on Medical Physics and Biomedical Engineering",
year="2006",
month="August",
pages="2822--2825",
publisher="Springer-Verlag Berlin Heidelberg",
address="Seoul",
isbn="3-540-36839-6"
}