Dr. Hockman noted minimal back pain, persistent right leg pain since the 2002 surgery, and “some” left leg pain. Upon review of an MRI, Dr. Hockman felt the fusion was solid but was concerned that one of the pedicle screws on the right side might be partly in the neural foramen and impinging the nerve root on that side. He ordered a CT/myelogram to determine placement of the pedicle screws. A January 15, 2004 lumbar CT myelogram found all pedicle screws well-seated, but found a small broad based disc protrusion at L5-S1, causing a mild mass effect on the left S1 and probably to a lesser degree the right S1 nerve root.