Subject-specific geometry affects acetabular contact pressure during gait more than subject-specific loading patterns |
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Authors: | Mariska Wesseling Sam Van Rossom Ilse Jonkers |
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Affiliation: | Department of Movement Sciences, Human Movement Biomechanics Research Group, KU Leuven, Leuven, Belgium |
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Abstract: | AbstractFinite element modeling (FEM) can predict hip cartilage contact mechanics. This study investigated how subject-specific boundary conditions and joint geometry affect acetabular cartilage contact mechanics using a multi-scale workflow. For two healthy subjects, musculoskeletal models calculated subject-specific hip kinematics and loading, which were used as boundary conditions for FEM. Cartilage contact mechanics were predicted using either generic or subject-specific FEM and boundary conditions. A subject-specific mesh resulted in a more lateral contact. Effects of subject-specific boundary conditions varied between both subjects. Results highlight the complex interplay between loading and kinematics and their effect on cartilage contact mechanics. |
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Keywords: | Multi-scale modeling hip contact mechanics musculoskeletal modeling finite element modeling |
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