Efficacy and Safety of Unilateral Biportal Endoscopy Compared With Transforaminal Route Percutaneous Endoscopic Lumbar Decompression in the Treatment of Lumbar Spinal stenosis: Minimum 1-year Follow-up.

Objective: This study compared the efficacy and safety of unilateral biportal endoscopic (UBE) decompression and transforaminal route percutaneous endoscopic lumbar decompression (PELD) for lumbar spinal stenosis (LSS), assessing 1-year clinical outcomes.

Methods: A total of 120 patients (64 UBE, 56 PELD) diagnosed with LSS in 2021 were evaluated. Perioperative outcomes included overall operation time, extracanal operative time, intracanal decompression time, incision length, fluoroscopy time, estimated blood loss, preoperative and postoperative day 3 hb levels, length of post-operative hospital stays, total expenses, postoperative complications.