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

Figure 2

Kaplan-Meier implant survivorship for two study cohorts. Kaplan-Meier implant survivorship analysis using late acetabular failure as an endpoint. All cases in both groups have a minimum of 10 years’ follow-up. At 10 years, survivorship is 97.2% for Biomet and 96.0% for Corin (p=0.0008). Late acetabular failure is defined as failure of acetabular component >2 years. Results of the log-rank test (p value <0.0001) and Wilcoxon test (p value <0.0001) show significant difference in the occurrence of late acetabular failures between the two implant groups.