Table 3.

Comparison of middle to long-term followups of cementless polyethylene-bearing THAs

Study	Year	Number of hips	Number of patients	Mean age (years)	Mean followup (years)	Mean Harris hip score (points)	Thigh pain (%)	Aseptic femoral loosening (%)	Survivorship
Kim et al. [35]	2003	118	80	46.8 (21–49)	9.8 (8–11)	92	10	0	99 at 10 years
Reigstad [48]	2008	75	70	52 (24–68)	16 (15–18)	89 (54-100)	—	1.3	88 at 18 years
Schramm et al. [52]	2000	89	80	51 (20–77)	10	98	17	0	—
Zenz et al. [56]	1995	56	56	56	10	91	47	0.7	97.96 at 10 years
Duffy et al. [20]	2004	84	73	38 (16–50)	10	88 (48–100)	—	6	87.9 at 10 years
Capello et al. [11]	2003	123	106	39 (18–49)	> 10	91.5	0.8	0.9	94.6 at 10 years
McLaughlin and Lee [42]	2000	108	91	37 (20–50)	10.2 (8-13)	92 (62–100)	2	7	98 at 12.5 years
McAuley et al. [41]	2004	561	488	40 (16–50)	6.92 (0–19)	—	—	—	89% at 10-year 60% at 15-year
Current study	2009	233	212	42.6 (20–50)	10 (5–16)	97 (50–100)	0	0.8	96.7 at 10 years 87% at 15 years