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Surgical postoperative complications, n (%)
| Complication | Group 1 (n=24) | Group 2 (n=29) |
|---|---|---|
| Surgery site infection | — | 2 (6.9) |
| Intermuscular hematoma | — | 1 (3.45) |
| Damage to the dura mater | — | — |
| Venous thromboembolic complications | 1 (4.15) | 1 (3.45) |
| Adjacent segment disorder | — | 1 (3.45) |
| Pseudoarthrosis | 1 (4.15) | — |
| Instability of the fixing device | — | 1 (3.45) |
