Table 4.

Implant survival rate for hip resurfacing arthroplasty (HRA) group and 95% confidence interval at 5, 10 and 15 years (N = 21)

Variable	5-Year survival, % (95% CI)	10-Year survival, % (95% CI)	15-Year survival, % (95% CI)
Overall survival	100 (84, 100)	100 (83, 100)	92 (64, 99)
Gender
Male	100 (74, 100)	100 (74, 100)	100 (66, 100)
Female	100 (66, 100)	100 (63, 100)	75 (19, 99)
Bearing surface
Resurfacing	100 (84, 100)	100 (83, 100)	92 (64, 99)
Diagnosis
Ankylosing spondylitis	100 (48, 100)	100 (48, 100)	100 (40, 100)
Juvenile chronic arthritis	100 (54, 100)	100 (54, 100)	100 (30, 100)
Idiopathic osteonecrosis	100 (16, 100)	100 (16, 100)	–
Secondary postperthes	100 (30, 100)	100 (30, 100)	100 (16, 100)
Steroid induced osteonecrosis	100 (30, 100)	100 (30, 100)	–
Idiopathic chondrolysis	100 (3, 100)	100 (3, 100)	0 (0, 97)
Enteropathicspondlyoarthropathy	100 (3, 100)	100 (3, 100)	100 (3, 100)

– Insufficient data