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Methods used for placement of 602 pedicle screws verified by intraoperative 3D imaging
| No. of cases | |
|---|---|
| 2-Dimensional fluoroscopy (C-arm or O-arm) | 37 |
| Computer navigation (O-arm image guidance) | 23 |
| Anatomic landmarks | 9 |
| Previous screw tracks | 14 |
| Total | 76 (7 cases used >1 method) |
