valgus

Resurfacing

Femur

- removal of femoral head cartilage

- resurfacing with metal

- cemented / uncemented

Acetabulum

- standard technique

Bearing surface

- metal on metal

Relatively young man (40 - 50)

Acceptable reduction

- varus / valgus < 5^o

- anterior / posterior < 5^o

- rotation 5^o

- shortening 10 mm

Poor remodelling potential

- valgus

- apex posterior angulation / recurvatum

- rotational alignment does not remodel

- shortening / in 2-10 year old average overgrowth is only 5mm