Intraoperative imaging adequacy and its impact on unplanned return-to-theatre rates in pedicle screw instrumentation

Figure 1 Case 1. A: Intraoperative image of midline cortical screws lateral only and poor quality; B and C: Post operative computed tomography scan shows left L5 medial breach.

Figure 2 Case 2. A: Intraoperative anteroposterior image of left L4 pedicle screw medial breach; B: Intraoperative lateral image; C: Post operative computed tomography scan shows left L4 medial breach.