Table 2

Characteristics of the 11 patients who underwent BHR revision

Patient	Age, yr^*	Cup/head size, mm	Cup inclination^†	Time to revision, mo	Reason for revision
Male
1	53	62/54	33.2°	160	Pseudotumour at 12 yr
2	66	64/58	43.7°	56	Acetabular cup loosening
3	60	64/58	41.1°	105	Femoral avascular necrosis with implant subsidence
4	62	56/50	43.1°	124	Anterior acetabular impingement
5	57	58/52	44.2°	48	Acetabular cup loosening
Female
1	54	54/48	35.6°	110	ALVAL/pseudotumour at 2 yr
2	67	52/46	37.5°	62	Elevated whole-blood metal-ions at 4 yr
3	38	48/42	45.9°	78	Periprosthetic fracture
4	59	50/44	34.8°	108	Aseptic femoral loosening
5	41	48/42	37.1°	102	Aseptic femoral loosening
6	33	54/46	53.8°	97	Ongoing symptomatology

ALVAL = aseptic lymphocyte-dominated vasculitis-associated lesion; BHR = Birmingham hip resurfacing.
↵* Age of the patient at the time of the index surgery.
↵† Measurement of the abduction angle on standard anteroposterior radiographs, as described previously by De Haan et al.22