Fig. 2From: 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 54-year-old woman in the PPS group was diagnosed with L4-5 lumbar spondylolisthesis. Preoperative x-rays and computed tomography scans showed Grade I spondylolisthesis (A-C). Preoperative magnetic resonance imaging images showed spinal stenosis (D-E). The patient underwent L4-5 OLIF with pedicle screw placement (F-G). Sagittal computed tomography images at 12 months postoperatively showed that the interbody fusion was achieved in the central region of the vertebral body (H)Back to article page