Table 5.
Number of hips progressed to collapse and the mean time to collapse
| Follow-up period (months)
|
Mean time to collapse (months) | |||||||
|---|---|---|---|---|---|---|---|---|
| 3 | 6 | 12 | 18 | 24 | 30 | 36 | ||
| Combination treatment | 0 | 0 | 0 | 0 | 1 | 1 | 1 | 30 |
| Controls | 0 | 0 | 0 | 1 | 1 | 1 | 2 | 28.8 |
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