Effects of Bone Deformation on Hip Chondrolabral Mechanics
This study evaluated how different bone material representations influence patient-specific finite element predictions of hip chondrolabral mechanics during physiological activities. Subject-specific models with rigid, homogeneous deformable, and CT-derived heterogeneous bone properties were compared to determine their effects on cartilage and labral contact mechanics, including contact pressure, strain, and contact area. The findings demonstrated that simplified rigid bone assumptions produced similar mechanics during walking but diverged under higher flexion activities, where deformable bone representations altered local stress and strain distributions. Additionally, the study assessed the tradeoff between computational efficiency and biomechanical fidelity when selecting bone material formulations for large-scale subject-specific hip modeling studies.
Owner: lukethudson
Luke T. Hudson, Brooklyn L. Vargas, Andrew E. Anderson, & Jeffrey A. Weiss (2026). Effects of bone deformation on patient-specific finite element predictions of hip chondrolabral mechanics. Journal of the Mechanical Behavior of Biomedical Materials, 179(), 107445. DOI: 10.1016/j.jmbbm.2026.107445
hip
cartilage
labrum
chondrolabral
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Subject 1/Level Walking/c03_Inhomo_gait.feb
The subject-specific, inhomogeneous bone properties model for Subject 1, simulated over a single cycle of level walking.
Subject 1/Level Walking/c03_OneMat_gait.feb
The one-material deformable bone properties model for Subject 1, simulated over a single cycle of level walking.
Subject 1/Level Walking/c03_rigid_gait.feb
The rigid bone properties model for Subject 1, simulated over a single cycle of level walking.
Subject 1/Level Walking/c03_TwoMat_gait.feb
The two-material deformable bone properties model for Subject 1, simulated over a single cycle of level walking.
Subject 1/Squat/c03_Inhomo_squat.feb
The subject-specific, inhomogeneous bone properties model for Subject 1, simulated over a single cycle of squat.
Subject 1/Squat/c03_OneMat_squat.feb
The one-material deformable bone properties model for Subject 1, simulated over a single cycle of squat.
Subject 1/Squat/c03_rigid_squat.feb
The rigid bone properties model for Subject 1, simulated over a single cycle of squat.
Subject 1/Squat/c03_TwoMat_squat.feb
The two-material deformable bone properties model for Subject 1, simulated over a single cycle of squat.
Subject 2/Level Walking/c04_Inhomo_gait.feb
The subject-specific, inhomogeneous bone properties model for Subject 2, simulated over a single cycle of level walking.
Subject 2/Level Walking/c04_OneMat_gait.feb
The one-material deformable bone properties model for Subject 2, simulated over a single cycle of level walking.
Subject 2/Level Walking/c04_rigid_gait.feb
The rigid bone properties model for Subject 2, simulated over a single cycle of level walking.
Subject 2/Level Walking/c04_TwoMat_gait.feb
The two-material deformable bone properties model for Subject 2, simulated over a single cycle of level walking.
Subject 2/Squat/c04_Inhomo_squat.feb
The subject-specific, inhomogeneous bone properties model for Subject 2, simulated over a single cycle of squat.
Subject 2/Squat/c04_OneMat_squat.feb
The one-material deformable bone properties model for Subject 2, simulated over a single cycle of squat.
Subject 2/Squat/c04_rigid_squat.feb
The rigid bone properties model for Subject 2, simulated over a single cycle of squat.
Subject 2/Squat/c04_TwoMat_squat.feb
The two-material deformable bone properties model for Subject 2, simulated over a single cycle of squat.
Subject 3/Level Walking/n04_Inhomo_gait.feb
The subject-specific, inhomogeneous bone properties model for Subject 3, simulated over a single cycle of level walking.
Subject 3/Level Walking/n04_OneMat_gait.feb
The one-material deformable bone properties model for Subject 3, simulated over a single cycle of level walking.
Subject 3/Level Walking/n04_rigid_gait.feb
The rigid bone properties model for Subject 3, simulated over a single cycle of level walking.
Subject 3/Level Walking/n04_TwoMat_gait.feb
The two-material deformable bone properties model for Subject 3, simulated over a single cycle of level walking.
Subject 3/Squat/n04_Inhomo_squat.feb
The subject-specific, inhomogeneous bone properties model for Subject 3, simulated over a single cycle of squat.
Subject 3/Squat/n04_OneMat_squat.feb
The one-material deformable bone properties model for Subject 3, simulated over a single cycle of squat.
Subject 3/Squat/n04_rigid_squat.feb
The rigid bone properties model for Subject 3, simulated over a single cycle of squat.
Subject 3/Squat/n04_TwoMat_squat.feb
The two-material deformable bone properties model for Subject 3, simulated over a single cycle of squat.
Subject 4/Level Walking/n10_Inhomo_gait.feb
The subject-specific, inhomogeneous bone properties model for Subject 4, simulated over a single cycle of level walking.
Subject 4/Level Walking/n10_OneMat_gait.feb
The one-material deformable bone properties model for Subject 4, simulated over a single cycle of level walking.
Subject 4/Level Walking/n10_rigid_gait.feb
The rigid bone properties model for Subject 4, simulated over a single cycle of level walking.
Subject 4/Level Walking/n10_TwoMat_gait.feb
The two-material deformable bone properties model for Subject 4, simulated over a single cycle of level walking.
Subject 4/Squat/n10_Inhomo_squat.feb
The subject-specific, inhomogeneous bone properties model for Subject 4, simulated over a single cycle of squat.
Subject 4/Squat/n10_OneMat_squat.feb
The one-material deformable bone properties model for Subject 4, simulated over a single cycle of squat.
Subject 4/Squat/n10_rigid_squat.feb
The rigid bone properties model for Subject 4, simulated over a single cycle of squat.
Subject 4/Squat/n10_TwoMat_squat.feb
The two-material deformable bone properties model for Subject 4, simulated over a single cycle of squat.
FEBio Studio Model Repository