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| Postoperative Complications | In total | Group A1 | Group A2 | Group B1 |
|---|---|---|---|---|
| Cerebrospinal Fluid Leakage | 2 | 1 | 1 | 0 |
| Drug-induced liver Dysfunction | 4 | 2 | 0 | 2 |
| Drug-induced Kidney Dysfunction | 7 | 4 | 1 | 2 |
| Postoperative Infection | 7 | 3 | 2 | 2 |
| Sinus Formation | 3 | 1 | 1 | 1 |
| Bacterial Meningitis | 2 | 1 | 1 | 0 |
| Intervertebral Infection | 1 | 0 | 0 | 1 |
| Tuberculous Meningitis | 1 | 1 | 0 | 0 |
| In total | 20 | 10 | 4 | 6 |
