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Occurrences of secondary procedures
| Variable, % (n/N) | Open (59 hips) | Arthroscopic (19 hips) | Exact significance (2-sided) chi-square |
|---|---|---|---|
| Secondary procedures | 30.5 (18/59) | 0 (0/19) | p = 0.004 |
| Secondary open reduction | 24 (14/59) | 0 (0/19) | p = 0.017 |
| Secondary concomitant osteotomy | 20 (12/59) | 0 (0/19) | p = 0.032 |
| Secondary open reduction with concomitant osteotomy | 13.5 (8/59)* | 0 (0/19) | |
| Sole concomitant osteotomy | 7 (4/59) | 0 (0/19) |
