Table 2.

Metal-on-metal total hip arthroplasty results

Reference	Hips	Age	Followup (years)	Osteolysis	Dislocation	Revisions	Survivorship
Delaunay [7]	100	60	6	2%	5%	5%	97% at 8 years
Korovessis et al. [15]	217	55	6.4	3.7%	0.9%	6.5%	98% cup and 93% stem at 9 years
Milosev et al. [20]	640	57	7.1	2.5%	0.3%	5.3%	91% at 10 years
Migaud et al. [18]	39	40	5.7	None	None	None	100% at 5 years
Long et al. [16]	161	55	6.5	None	2.5%	3.7%	Not reported
Park et al. [21]	169	55	2.3	5.9%	Not reported	1.2%	Not reported
Dorr et al. [8]	70	70	5.2	None	4%	4.2%	94% at 7 years
Engh Jr et al. [current study]	131	53	5.6	2%	0.7%	1.5%	98% at 5 years