A periacetabular osteotomy is a surgical treatment for acetabular dysplasia that preserves and enhances your own hip joint rather than replacing it with an artificial part.
The hip bone consists of two distinct parts: the socket and the ball. The labrum lines the socket, or acetabulum, and acts like a gasket, holding the joint in place. Stress on the labrum caused by a shallow hip socket is referred to as acetabular dysplasia.
A periacetabular osteotomy is intended to decrease the pain from acetabular dysplasia and delays long-term damage to the hip joint. Through a series of three carefully controlled cuts, the hip socket is separated from the pelvis and positioned where it will more completely cover the femoral head.