Fig. 4From: Clinical, Radiographic and Fusion Comparison of Oblique Lumbar Interbody Fusion (OLIF) stand-alone and OLIF with posterior pedicle screw fixation in patients with degenerative spondylolisthesis A 71-year-old woman in the SA group underwent OLIF stand-alone. Preoperative x-rays showed no osteophyte formation in the intervertebral space or vertebral edge (A). The yellow arrow on the postoperative X-ray and computed tomography scans showed that osteophyte formats at the edge of vertebral body (B-D). The yellow arrow on computed tomography scans three-dimensional imaging showed osteophyte formation on the left and right sides of the anterior edge of the vertebral body (E-F).Back to article page