Table 1.

Overview about the average age, weight and time in vivo until failure of the titanium alloy neck adapter in 68 patients and distribution of neck adapter and combined head geometry

age	Ø 57.2 years (36 - 75 years)
weight	Ø 102.3 kg (75 to 130 kg)
time in vivo	Ø 24 months (8 to 48 months)
neck adapter (CCD-angle)	130°/0°	130° ± 7.5°	135°/0°	135° ± 7.5°	140°/0°	140° ± 7.5°
	29	16	18	5	-	-
head length	S	M	L	XL	XXL	unknown
	4	22	26	7	6	3
head diameter	28 mm		32 mm		36 mm
	11		50		7
head material	CoCrMo		Biolox forte		Biolox delta
	13		53		2