Comparison of Conventional Polyethylene Wear and Signs of Cup Failure in Two Similar Total Hip Designs

Table 4

Clinical results for hip scores and pain for both groups material pairings used in this study.

	Group 1	Group 2
	(CoCr heads)	(CoCr heads)	(Al2O3 heads)
Total	31	15	31
Preoperation HHS; Average (range)	67; (58–87)	68; (58–87)	67; (58–81)
Last clinical HHS; Average (range)	99.1; (95–100)	98.9; (93–100)	99.5; (95–100)
Thigh pain	2	1	0
Groin pain	1	0	2