Classification of traumatic hip dislocation.

The commonly used classification systems of hip dislocation are based on the direction of the dislocation and the presence of associated lesions. However, no rating system can reliably predict the patient's outcome and prognosis based on the initial presentation and classification. In general, patients with anterior dislocations have the best prognosis. Other factors affecting the prognosis are the associated injuries and more importantly the delay between dislocation and reduction.