Table 1.

Demographic and radiological features.

Patients	61 patients (50 male, 11 female) (72% bilateral, 28% unilateral)
The average patient age at surgery	41.3 ± 10.2
	Cemented (22 hips – 21%)		Non-cemented (83 hips – 79%)
Acetabular protrusion	7		11
Bone ankylosis	11		26
Heterotopic ossification (HO)	5		9
Aseptic implant loosening	Femoral	Acetabular	Femoral	Acetabular
	2	2	4	3