Determination of hip joint contact pressure from CT or MR images

Kód výsledku v IS VaVaI

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Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Determination of hip joint contact pressure from CT or MR images

Popis výsledku v původním jazyce

The peak hip contact stress measured experimentally is usually higher than the peak hip contact stress estimated from mathematical models, presumably due to negligence of local variations in the mechanical properties of the cartilage in mathematical models. In this study, a mathematical model (previously verified in clinical studies), has been adapted to describe the influence of the specific local geometry of the hip on the contact stress distribution. CT data from Visible Human Project have been usedto create a 3D model of the hip joint and simulated antero-posterior radiogram. It is shown that including more accurate geometry from the CT images considerably increases peak contact stress in comparison with the simplified model based on radiogram analysis. However, the local variations in joint surface geometry estimated from CT do not considerably affect the overall stress distribution.

Název v anglickém jazyce

Determination of hip joint contact pressure from CT or MR images

Popis výsledku anglicky

The peak hip contact stress measured experimentally is usually higher than the peak hip contact stress estimated from mathematical models, presumably due to negligence of local variations in the mechanical properties of the cartilage in mathematical models. In this study, a mathematical model (previously verified in clinical studies), has been adapted to describe the influence of the specific local geometry of the hip on the contact stress distribution. CT data from Visible Human Project have been usedto create a 3D model of the hip joint and simulated antero-posterior radiogram. It is shown that including more accurate geometry from the CT images considerably increases peak contact stress in comparison with the simplified model based on radiogram analysis. However, the local variations in joint surface geometry estimated from CT do not considerably affect the overall stress distribution.

Druh

D - Stať ve sborníku

CEP obor

BO - Biofyzika

OECD FORD obor

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Projekt

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Návaznosti

Z - Vyzkumny zamer (s odkazem do CEZ)

Rok uplatnění

2010

Kód důvěrnosti údajů

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

Název statě ve sborníku

Human Biomechanics 2010

ISBN

978-80-7372-648-5

ISSN

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e-ISSN

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Počet stran výsledku

6

Strana od-do

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Název nakladatele

Technical University of Liberec

Místo vydání

Liberec

Místo konání akce

Sychrov

Datum konání akce

4. 10. 2010

Typ akce podle státní příslušnosti

EUR - Evropská akce

Kód UT WoS článku

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