Effect of patient-specific model scaling on hip joint reaction force in one-legged stance – study of 356 hips

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21220%2F17%3A00312028" target="_blank" >RIV/68407700:21220/17:00312028 - isvavai.cz</a>

Result on the web

<a href="http://dx.doi.org/10.5277/ABB-00839-2017-02" target="_blank" >http://dx.doi.org/10.5277/ABB-00839-2017-02</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.5277/ABB-00839-2017-02" target="_blank" >10.5277/ABB-00839-2017-02</a>

Result language

angličtina

Original language name

Effect of patient-specific model scaling on hip joint reaction force in one-legged stance – study of 356 hips

Original language description

Purpose Estimation of hip joint loading is fundamental for understanding joint function, injury and disease. To predict patient-specific hip loading, a musculoskeletal model must be adapted to the patient’s unique geometry. By far the most common and cost effective clinical images are whole pelvis plain radiographs. This study compared the accuracy of anisotropic and isotropic scaling of musculoskeletal model to hip joint force prediction by taking patient-specific bone geometry from standard anteroposterior radiograms. Methods 356 hips from 250 radiograms of adult human pelvis were analyzed. A musculoskeletal model was constructed from sequential images of the Visible Human Male. The common body position of one-legged stance was substituted for the midstance phase of walking. Three scaling methods were applied; A) anisotropic scaling by interhip separation, ilium height, ilium width, and lateral and inferior position of the greater trochanter, B) isotropic scaling by pelvic width and C) isotropic scaling by interhip separation. Hip joint force in one-legged stance was estimated by inverse static model. Results Isotropic scaling affects all proportions equally that results in small difference in hip joint reaction force among patients. Anisotropic hip scaling increases variation in hip joint force among patients considerably. The difference in hip joint force estimated by isotropic and anisotropic scaling may surpass patient’s body weight. Conclusions Hip joint force estimated by isotropic scaling depends mostly on reference musculoskeletal geometry. Individual’s hip joint reaction force estimation could be improved by including additional bone geometrical parameters in the scaling method.

Czech name

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Czech description

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Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

—

OECD FORD branch

20302 - Applied mechanics

Project

<a href="/en/project/NV15-31269A" target="_blank" >NV15-31269A: The study of new materials used as articulation surface of joint replacement</a><br>

Continuities

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

Publication year

2017

Confidentiality

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

Name of the periodical

Acta of Bioengineering and Biomechanics

ISSN

1509-409X

e-ISSN

—

Volume of the periodical

19

Issue of the periodical within the volume

4

Country of publishing house

PL - POLAND

Number of pages

6

Pages from-to

103-108

UT code for WoS article

000427745600011

EID of the result in the Scopus database

2-s2.0-85041502347