Conventional hip resurfacing is carried out through an extensive posterior approach used by a majority of surgeons whilst a few use an antro-lateral approach. The conventional posterior approach involves quite extensive release of the gluteus maximus insertion to femur. It also involves extensive soft tissue release to allow anterior and superior displacement of the head to facilitate accurate reaming of the acetabulum. This allows precise implantation of the definitive acetublar component in its true anteverted position.

Minimally invasive hip resurfacing MIHR® involves a small, cosmetically pleasing incision which is typically 5.5– 9 cms in length compared to the incision for the conventional posterior approach which is typically 25 – 30cms in length.

Mr G Chana has seen a significant number of patients with hypertropic bone formation in relation to this released gluteus maximus insertion to the femur when a conventional open approach is used. The new minimally invasive approach avoids this problem as it does not require release of the gluteus maximus insertion to the femur.

Instrumentation has been designed to implant the MIHR® Hip Resurfacing which has been specifically designed for minimally invasive surgical techniques.