Acetabular Debonding: An Investigation of Porous Coating Delamination in Hip Resurfacing Arthroplasty

Table 3

Acetabular failures by category.

Type	Corin	Biomet	P-value
# Cases	371	728	--
(1) Late Loosening	15 (4.0%)	2 (0.3%)	<0.0001
Debonding	13 (3.5%)	0 (0.0%)	<0.0001
Intact Coating	0 (0.0%)	2 (0.3%)	0.3125
Unknown	1 (0.3%)	0 (0.0%)	0.1615
(2) Early Loosening	2 (0.5%)	8 (1.1%)	0.3576
(3) AWRF	4 (1.1%)	4 (0.5%)	0.3271

indicates significance.