Sensitivity of the stress field of the proximal femur predicted by CT-based FE analysis to modeling uncertainties.

ABSTRACT: Proximal femur anatomy and bone mineral density vary widely among individuals, precluding the use of one predefined finite element (FE) model to determine the stress field for all proximal femurs. This variability poses a challenge in current prosthetic hip design approach. Given the numerous options for generating computed tomography (CT)-based FE models, selecting the best methods for defining the mechanical behavior of the proximal femur is difficult. In this study, a combination of computational and experimental approaches was used to explore the susceptibility of the predicted stress field of the proximal femur to different combinations of density-elasticity relationships, element type, element size, and calibration error. Our results suggest that FE models with first-order voxelized

SUBMITTER: Youssefian S 

PROVIDER: S-EPMC8716646 | biostudies-literature | 2022 May

REPOSITORIES: biostudies-literature