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Surgery-related data
| All (n = 20) | OR group (n = 14) | PLR group (n = 6) | p value | |
|---|---|---|---|---|
| Number of pedicle screws | 8.8 (8–12) | 8.9 (8–12) | 8.3 (8–10) | 0.28 |
| % Screw misplacement | 10.3 ± 14.4 | 9.2 ± 13.4 | 12.5 ± 17.7 | 0.78 |
| Cement augmentation | ||||
| Yes | 9 | 8 | 1 | |
| No | 11 | 6 | 5 | |
| Cement extravasation | ||||
| Yes | 6 | 5 | 1 | |
| No | 3 | 3 | 0 | |
| Loosening of pedicle screws | ||||
| Yes | 2 | 2 | 0 | |
| No | 18 | 12 | 6 | |
| Impaired wound healing | ||||
| Yes | 3 | 3 | 0 | |
| No | 17 | 11 | 6 |
