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  • Title: Subject-specific geometry affects acetabular contact pressure during gait more than subject-specific loading patterns.
    Author: Wesseling M, Van Rossom S, Jonkers I, Henak CR.
    Journal: Comput Methods Biomech Biomed Engin; 2019 Dec; 22(16):1323-1333. PubMed ID: 31497996.
    Abstract:
    Finite 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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