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Figure 6: EA mode of pedicle screw trajectory planning in a patient with high grade L5-S1 spondylolisthesis. (a) Correction of vertebra rotation. (b) Marking of fiducials. (c) Desired trajectory for selected entry point and angle. (d) Marking of the entry and target fiducials for desired iliac wing screw. (e) Ideal trajectory of iliac wing screw and panel displaying the angle of screw trajectory using entry-target mode

Figure 6: EA mode of pedicle screw trajectory planning in a patient with high grade L5-S1 spondylolisthesis. (a) Correction of vertebra rotation. (b) Marking of fiducials. (c) Desired trajectory for selected entry point and angle. (d) Marking of the entry and target fiducials for desired iliac wing screw. (e) Ideal trajectory of iliac wing screw and panel displaying the angle of screw trajectory using entry-target mode