Project overview
Evaluated polyethylene liner wear in total hip arthroplasty using finite element analysis. The study compared cemented and uncemented liners while assessing the influence of fixation type, liner thickness, femoral-head material and acetabular-component positioning.
Approach
Developed finite element models to compare wear risk under different implant configurations. The analysis varied fixation method, liner thickness, femoral-head material, acetabular positioning and femoral-stem offset to assess their potential impact on implant durability
Outcome
Cemented liners showed a lower wear risk than uncemented liners, particularly when positioned anatomically with a minimum thickness of 5 mm. Ceramic femoral heads performed better than metallic heads, while high-offset stems reduced wear more effectively than standard-offset stems.