[Table/Fig-3]:
Pathology and surgical procedures
| Variables | Group D(n=30) | Group P(n=30) | Group M(n=30) |
| Craniotomy | |||
| Hematoma | 6 | 8 | 9 |
| Contusion | 4 | 4 | 5 |
| Tumor | 7 | 4 | 3 |
| Spine Surgery | |||
| (A) Cervical | |||
| Atlantoaxial dislocation | 2 | 1 | 2 |
| Anterior plate fusion | 8 | 9 | 7 |
| (B) Thoracic | |||
| Tumor decompression | 1 | 1 | 0 |
| Decompression and fusion | 2 | 3 | 4 |