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Subject-specific geometry affects acetabular contact pressure during gait more than subject-specific loading patterns

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  • Mariska Wesseling
  • Sam Van Rossom
  • Ilse Jonkers
  • Corinne R. Henak

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.

Suggested Citation

  • Mariska Wesseling & Sam Van Rossom & Ilse Jonkers & Corinne R. Henak, 2019. "Subject-specific geometry affects acetabular contact pressure during gait more than subject-specific loading patterns," Computer Methods in Biomechanics and Biomedical Engineering, Taylor & Francis Journals, vol. 22(16), pages 1323-1333, December.
    • Handle: RePEc:taf:gcmbxx:v:22:y:2019:i:16:p:1323-1333
    DOI: 10.1080/10255842.2019.1661393
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