dislocation

Concept

Femur

- removal of femoral head cartilage

- resurfacing with metal

- cemented / uncemented

Acetabulum

- standard technique

Bearing surface

- metal on metal

Indications

Relatively young man (40 - 50)

OA

Incidence

2-3% of cases 

- doubles with infrequent operator

- second most common reason for revision after loosening

Australian Joint Registry

- dislocation accounts for 14.8% of revisions

Positions

Posterior dislocation

- hip flexed, adducted, IR