Table 1.

Preoperative diagnoses

Diagnoses	Number of hips	%
Primary coxarthrosis	127	37%
Osteonecrosis	97	28%
Coxofemoral dysplasia	53	15%
Revision surgery	28	8%
Trauma	17	5%
Other	13	4%
Inflammatory disease	11	3%
Posttraumatic coxarthrosis	7	2%