Effect of cup inclination on predicted contact stress-induced volumetric wear in total hip replace

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21220%2F15%3A00220749" target="_blank" >RIV/68407700:21220/15:00220749 - isvavai.cz</a>

Result on the web

<a href="http://www.tandfonline.com/doi/abs/10.1080/10255842.2014.916700?url_ver=Z39.88-2003&rfr_id=ori:rid:crossref.org&rfr_dat=cr_pub%3dpubmed&#.VDvLSpvWW00" target="_blank" >http://www.tandfonline.com/doi/abs/10.1080/10255842.2014.916700?url_ver=Z39.88-2003&rfr_id=ori:rid:crossref.org&rfr_dat=cr_pub%3dpubmed&#.VDvLSpvWW00</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1080/10255842.2014.916700" target="_blank" >10.1080/10255842.2014.916700</a>

Result language

angličtina

Original language name

Effect of cup inclination on predicted contact stress-induced volumetric wear in total hip replace

Original language description

In order to increase the lifetime of the total hip endoprosthesis, it is necessary to understand mechanisms leading to its failure. In this work, we address volumetric wear of the artificial cup, in particular the effect of its inclination with respect to the vertical. Volumetric wear was calculated by using mathematical models for resultant hip force, contact stress and penetration of the prosthesis head into the cup. Relevance of the dependence of volumetric wear on inclination of the cup (its abduction angle ϑA) was assessed by the results of 95 hips with implanted endoprosthesis. Geometrical parameters obtained from standard antero-posterior radiographs were taken as input data. Volumetric wear decreases with increasing cup abduction angle ϑA. The correlation within the population of 95 hips was statistically significant (P = 0.006). Large cup abduction angle minimises predicted volumetric wear but may increase the risk for dislocation of the artificial head from the cup in the one-legged stance. Cup abduction angle and direction of the resultant hip force may compensate each other to achieve optimal position of the cup with respect to wear and dislocation in the one-legged stance for a particular patient.

Czech name

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Czech description

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Type

J_x - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)

CEP classification

FI - Traumatology and orthopaedics

OECD FORD branch

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Project

<a href="/en/project/TA01010185" target="_blank" >TA01010185: New materials and coatings for joint replacement bionical design</a><br>

Continuities

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year

2015

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

Computer Methods in Biomechanics and Biomedical Engineering

ISSN

1025-5842

e-ISSN

—

Volume of the periodical

18

Issue of the periodical within the volume

13

Country of publishing house

GB - UNITED KINGDOM

Number of pages

6

Pages from-to

1468-1473

UT code for WoS article

000347157000010

EID of the result in the Scopus database

2-s2.0-84920618278