Table 2.
Revision rates stratified by associated risk factors and/or diagnoses, and comparison to revision rate in all studies
| Population parameters | Total hips | Revised | Revision percentage | p-value | |
|---|---|---|---|---|---|
| Total study population (all hips with osteonecrosis from all 67 reviewed studies) | 3,258 | 413 | 13 | ||
| Number of hips with sufficient detail provided to establish failure based on risk factor | 1,301 | 223 | 17 | ||
| All corticosteroids | 697 | 120 | 17 | 0.997 | |
| Corticosteroids (excl. organ failure/transplant or SLE) | 238 | 40 | 17 | 0.952 | |
| Renal failure and/or transplant | 354 | 77 | 22 | 0.003* | |
| Heart Transplant | 24 | 0 | 0 | 0.023* | |
| Systemic lupus erythematosus | 81 | 3 | 4 | 0.002* | |
| Excessive alcohol consumption | 102 | 18 | 18 | 0.997 | |
| Post-traumatic | 128 | 15 | 12 | 0.146 | |
| Idiopathic | 232 | 21 | 9 | <0.001* | |
| Sickle cell disease | 90 | 29 | 32 | 0.001* | |
| Gaucher disease | 30 | 10 | 33 | 0.022* | |
Twenty-two hips, of which ten failed, had associated risk factors and/or diagnoses other than those specific above. They were included in the total stratified population
* Values considered significant