Table 2.
Evidence for bipolar hemiarthroplasty in osteonecrosis of the femoral head
| Study | Prosthesis | Hips (n) | Mean follow-up (years) | Survivorship | Causes of failure |
|---|---|---|---|---|---|
| Cabanela39 | Bateman | 23 | 9.2 | 78% | Groin pain 36% |
| Chan and Shih46 | Omifit (osteonic) | 28 | 6.4 | 96% | Proximal migration 10.7% Groin pain 10.7% Femoral osteolysis 3.6% |
| Meijerink et al47 | Omifit (osteonic) Hydroxyapatite/nonhydroxyapatite |
30 | 10.4 | 73% | Proximal migration 60% Subsidence 37% Groin pain 53% Femoral osteolysis 63% |
| Ito et al48 | Omifit (osteonic) | 48 | 11 | 70% at 15 years | Groin pain 42% Proximal migration 42% |
| Lee et al45 | Spongiosa 1 | 40 | 8 | NA | Groin pain 20% Proximal migration 23% Dislocation 5% |
| Murzic and McCollum49 | Bateman | 32 | 6 | 81% | Proximal migration 6% Groin pain 18% |
| Nagai et al44 | Bateman | 12 | 16.6 | 75% | Groin pain 33% Osteolysis 17% Migration of stem 8% |
| Takaoka41 | Various | 83 | 5.7 | NA | Groin pain 17% Proximal migration 8.4% Loosening 17% |
Abbreviation: NA, not available.