Figure 5.

The sagittal midline 2D-CT study obtained 6 months postoperatively following iliac autograft and dynamic ABC plate placement documented an adequate fusion. Observe the lack of lucency and the presence of bony trabeculation at the graft/vertebral body interfaces superiorly and inferiorly. A further fusion criterion is the lack of lucency surrounding the vertebral screws. Also note the 3-4 mm of cephalad and caudad screw migration within the plate minimizing stress shielding and allowing for graft settling/fusion.