Effect of Single-Segment versus Two-Segment Pedicle Screw Fixation on Postoperative Sagittal Balance and Cranial Adjacent Segment Disease in L4-L5 Spondylolisthesis.
AIM To evaluate the effects of single-segment versus two-segment pedicle screw fixation on adjacent segment disease (ASDis) and lumbar sagittal balance in patients with L4-L5 spondylolisthesis. MATERIALS AND METHODS This retrospective study included 35 patients who underwent lumbar fusion for L4-L5 spondylolisthesis...