Modeling of the Generation of UHMWPE Particles With Microfabricated Surface Textures

Microfabricated surface textures have been utilized to generate narrowly distributed UHMWPE wear particles with different sizes and shapes. The ultimate purpose of the research is to study bioactivity effects induced by UHMWPE particles that lead to the failure of total joint implants. Previously we developed a method of surface-texture design to control the particle size and shape [1]. The objective of the present paper is to model the generation UHMWPE particles with surface textures containing wedge-shaped cutting edges.