failure

Tuberosity avulsions

Fracture which extends between the trochanters of the proximal femur

- lower limit is inferior border of lesser tuberosity

Extra capsular / well vascularized

The key to stability is the posteromedial cortex

Femur

- removal of femoral head cartilage

- resurfacing with metal

- cemented / uncemented

Acetabulum

- standard technique

Bearing surface

- metal on metal

Relatively young man (40 - 50)