From: Cortical screw placement with a spinous process clamp guide: a cadaver study accessing accuracy
Deviation | Planning screws (n = 3) | Inserted screws (n = 7) |
---|---|---|
Cranial pedicle n (%) | 0 | 0 |
Caudal pedicle n (%) | 0 | 0 |
Cephalad endplate n (%) | 0 | 1 |
Medial pedicle n (%) | 1 | 2 |
Lateral pedicle n (%) | 2 | 4 |
Vertebral cortex n (%) | 0 | 0 |