Stochastic lattice-based porous implant design for improving the stress transfer in unicompartmental knee arthroplasty.

ABSTRACT:

Background

Unicompartmental knee arthroplasty (UKA) has been proved to be a successful treatment for osteoarthritis patients. However, the stress shielding caused by mismatch in mechanical properties between human bones and artificial implants remains as a challenging issue. This study aimed to properly design a bionic porous tibial implant and evaluate its biomechanical effect in reconstructing stress transfer pathway after UKA surgery.

Methods

Voronoi structures with different strut sizes and porosities were designed and manufactured with Ti6Al4V through additive manufacturing and subjected to quasi-static compression tests. The Gibson-Ashby model was used to relate mechanical properties with design parameters. Subsequently, finite element models were developed for porous

SUBMITTER: Deng T 

PROVIDER: S-EPMC11340161 | biostudies-literature | 2024 Aug

REPOSITORIES: biostudies-literature