Table 3 Summary of survival rate

Hips converting to THA

6(12%)

13(12.4%)

Hips converting to femoral head-acetabularplasty

0

2(1.9%)

Time converting to THA (years; mean)

11.2

4.1

Time without converting to THA (years; mean)

13.1

10

Survival rate at 5 years

100%

91.2%

0.032

Survival rate at 10 years

91.7%

88.3%

0.35

Survival rate at 15 years

84.1%

86%

0.355