REPLACEMENT OF BEARING SURFACES FOR HIP PROSTHESIS

摘要

A hip replacement prosthesis comprises a stem (4), a femoral head (5) and an acetabular shell (1) having a polyethylene liner (3), the liner (3) having become worn or damaged. The replacement method comprises removing the liner (3) and replacing it with a hard surface liner (6), securing it to the acetabular shell (1), the hard surface liner (6) being shaped to fit the femoral head (5). The method is carried out without disrupting the fixing of the stem (4) and/or the acetabular shell (1).