| Index surgery | Lengthening surgery | P for trend | |||
---|---|---|---|---|---|---|
1st–3rd | 4th–6th | 7th–9th | ≥ 10th | |||
No. of surgeries | 58 | 173 | 154 | 99 | 60 | - |
No. of IFs (%) | 4 (6.9) | 11 (6.4) | 7 (4.5) | 2 (2.0) | 0 (0) | 0.01* |
No. of anchor loosenings/dislocations (%) | 4 (6.9) | 5 (2.9) | 4 (2.6) | 2 (2.0) | 0 (0) | 0.23 |
No. of rod breakages (%) | 0 (0) | 5 (2.9) | 3 (1.9) | 0 (0) | 0 (0) | 0.04* |
No. of connector breakages (%) | 0 (0) | 1 (0.6) | 0 (0) | 0 (0) | 0 (0) | 0.28 |