Output details

Influence of acetabular cup rim design on the contact stress during edge loading in ceramic-on-ceramic hip prostheses

The paper highlights for the first time the need for implant designers to consider acetabular cup rim geometry to reduce stress levels and corresponding accelerated wear in hip arthroplasty during edge loading / micro-separation. Micro-separation was defined at Leeds as contact between the spherical femoral head and the sharp edge of the acetabular cup. The work contributed to the successful £6.6M refunding of the Leeds Musculoskeletal Biomedical Research Unit (lmbru.ac.uk) by the NIHR. Computational models developed are currently being applied in collaborative research with DePuy/Johnson and Johnson (Graham Isaac, gisaac@dpygb.jnj.com) to support a new global product development programme [088908/Z/09/Z Wellcome/EPSRC].