Patient-specific hip geometry has greater effect on THA wear than femoral head size

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11110%2F16%3A10332045" target="_blank" >RIV/00216208:11110/16:10332045 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/68407700:21220/16:00310265

Výsledek na webu

<a href="http://dx.doi.org/10.1016/j.jbiomech.2016.10.030" target="_blank" >http://dx.doi.org/10.1016/j.jbiomech.2016.10.030</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.jbiomech.2016.10.030" target="_blank" >10.1016/j.jbiomech.2016.10.030</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Patient-specific hip geometry has greater effect on THA wear than femoral head size

Popis výsledku v původním jazyce

In vivo linear penetration in total hip arthroplasty (THA) exhibits similar values for 28 mm and 32 mm femoral head diameter with considerable variations between and within the studies. It indicates factors other than femoral head diameter influence polyethylene wear. This study is intended to test the effect of patient's individual geometry of musculoskeletal system, acetabular cup orientation, and radius of femoral head on wear. Variation in patient's musculoskeletal geometry and acetabular cup placement is evaluated in two groups of patients implanted with 28 mm and 32 mm THA heads. Linear wear rate estimated by mathematical model is 0.165-0.185 mm/year and 0.157-0.205 mm/year for 28 and 32 mm THA heads, respectively. Simulations show little influence femoral head size has on the estimated annual wear rate. Predicted annual linear wear depends mostly on the abduction angle of the acetabular cup and individual geometry of the musculoskeletal system of the hip, with the latter having the greatest affect on variation in linear wear rate.

Název v anglickém jazyce

Patient-specific hip geometry has greater effect on THA wear than femoral head size

Popis výsledku anglicky

In vivo linear penetration in total hip arthroplasty (THA) exhibits similar values for 28 mm and 32 mm femoral head diameter with considerable variations between and within the studies. It indicates factors other than femoral head diameter influence polyethylene wear. This study is intended to test the effect of patient's individual geometry of musculoskeletal system, acetabular cup orientation, and radius of femoral head on wear. Variation in patient's musculoskeletal geometry and acetabular cup placement is evaluated in two groups of patients implanted with 28 mm and 32 mm THA heads. Linear wear rate estimated by mathematical model is 0.165-0.185 mm/year and 0.157-0.205 mm/year for 28 and 32 mm THA heads, respectively. Simulations show little influence femoral head size has on the estimated annual wear rate. Predicted annual linear wear depends mostly on the abduction angle of the acetabular cup and individual geometry of the musculoskeletal system of the hip, with the latter having the greatest affect on variation in linear wear rate.

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

FI - Traumatologie a ortopedie

OECD FORD obor

—

Projekt

<a href="/cs/project/NV15-31269A" target="_blank" >NV15-31269A: Studium nových materiálů pro artikulační povrchy kloubních náhrad</a><br>

Návaznosti

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

Rok uplatnění

2016

Kód důvěrnosti údajů

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

Název periodika

Journal of Biomechanics

ISSN

0021-9290

e-ISSN

—

Svazek periodika

49

Číslo periodika v rámci svazku

16

Stát vydavatele periodika

GB - Spojené království Velké Británie a Severního Irska

Počet stran výsledku

6

Strana od-do

3996-4001

Kód UT WoS článku

000390971300034

EID výsledku v databázi Scopus

2-s2.0-85006115831