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Incidence and grade of pedicle breach
| Pedicle breach | Thoracic (n=242) | Cervical (n=98) | |
|---|---|---|---|
| Superior pedicle wall | Grade-1 | 1 | 1 |
| Grade-2 | 0 | 0 | |
| Grade-3 | 0 | 0 | |
| Inferior pedicle wall | Grade-1 | 2 | 0 |
| Grade-2 | 1 | 0 | |
| Grade-3 | 0 | 0 | |
| Medial pedicle wall | Grade-1 | 1 | 2 |
| Grade-2 | 1 | 1 | |
| Grade-3 | 0 | 0 | |
| Lateral pedicle wall | Grade-1 | 4 | 4 |
| Grade-2 | 4 | 1 | |
| Grade-3 | 7 (planned-in out in technique) | 0 | |
| Anterolateral vertebral body wall | Grade-1 | 2 | 1 |
| Grade-2 | 2 | 0 | |
| Grade-3 | 1 | 0 |
