Table 4.
Comparison of total hip arthroplasty revision rates to selected national joint registries
| Report or registry | Total number of primary total hip arthroplasties | Six-year survivorship for osteonecrosis | Six-year survivorship for all diagnoses | Eight-year survivorship for all diagnoses | Six-year survivorship for osteoarthritis | Eight-year survivorship for osteoarthritis | Years of index arthroplasty |
|---|---|---|---|---|---|---|---|
| Post-1990 studies in our report (all osteonecrosis) | 458 | 97%a | 1990–2007 | ||||
| Swedish Hip Registryb | 184,020 | 97% | 95% | 98%c | 97%c | 1992–2007 | |
| Danish Hip Registry | 77,408 | 95% | 94% | NR | NR | 1995–2007 | |
| New Zealand Hip Registry | 49,374 | 97% | 96% | NR | NR | 1999–2007 | |
| Australian Hip Registry | 125,004 | NR | NR | 97% | NR | 1999–2007 |
a Survival at a mean follow-up of six years
b Only results for hips operated between 1992 and 2007 were included
c Includes revision for aseptic loosening only
NR not reported