Table 3. Perioperative and postoperative complications.
| Complications | Numbers |
|---|---|
| Pneumonia | 4 |
| Pneumonedema | 1 |
| Pleural effusion | 6 |
| Atelectasis | 2 |
| Surgical site infection | 1 |
| Transient lower extremity weakness | 5 |
| Leakage of cerebrospinal fluid | 1 |
| Rod fracture | 2 |
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