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

Kód výsledku v 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>

Výsledek na webu

<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>

Jazyk výsledku

angličtina

Název v původním jazyce

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

Popis výsledku v původním jazyce

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.

Název v anglickém jazyce

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

Popis výsledku anglicky

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.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

20302 - Applied mechanics

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

2017

Kód důvěrnosti údajů

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

Název periodika

Acta of Bioengineering and Biomechanics

ISSN

1509-409X

e-ISSN

—

Svazek periodika

19

Číslo periodika v rámci svazku

4

Stát vydavatele periodika

PL - Polská republika

Počet stran výsledku

6

Strana od-do

103-108

Kód UT WoS článku

000427745600011

EID výsledku v databázi Scopus

2-s2.0-85041502347