Impact of Concomitant Grade I Degenerative Spondylolisthesis on Clinical and Radiographic Outcomes Following Biportal Endoscopic versus Microscopic Laminectomy for Lumbar Spinal Stenosis: A Post Hoc Analysis of a Multicenter Randomized Clinical Trial
Study Design Post hoc analysis. Objective To determine whether Meyerding grade I degenerative spondylolisthesis (DS1) modifies 12-month clinical or radiographic outcomes after biportal endoscopic laminectomy (BE-L) versus microscopic laminectomy (M-L) for lumbar spinal stenosis, and to compare the two techniques among...