Partial Hip Arthroplasty

Partial hip arthroplasty consists of the prosthetic replacement of the upper part of the femur and involves the placement of a stem and a metal head that articulates with the native hip socket (acetabular cavity). Only part of the joint is replaced, which is why it is also called a hip hemi-arthroplasty. The femoral milling and preparation takes place with the placement of a new prosthetic femoral head in the native, unmilled (rhymed) acetabulum. It is used almost exclusively in the context of femoral neck fractures in patients with low functional demand.