Percutaneous endoscopic unilateral laminotomy and bilateral decompression improves gait quality and stance balance in patients with lumbar spinal stenosis: a retrospective cohort study

This study was a single-center retrospective cohort study, approved by the Ethics Committee of the First Affiliated Hospital of Anhui Medical University (Ethical Application Reference: PJ2023-07-13 Anhui, China) and was registered at the Chinese Clinical Trial Registry at 20/06/2023 (ChiCTR2300072649). The research was conducted in accordance with the Declaration of Helsinki and clinical practice guidelines.