Abstract: Objective To compare the short-term efficacy of percutaneous foraminal endoscopy and traditional posterior decompression,bone grafting,fusion and internal fixation in the treatment of senile degenerative lumbar spinal stenosis.Methods 100 elderly patients with degenerative lumbar spinal stenosis admitted to Hainan Qionghai People’s Hospital from January 2018 to January 2021 were selected as the study subjects.They were divided into the observation group(50 case) and the control group(50 case) according to different surgical methods.The observation group used percutaneous foraminal endoscopy technology,and the control group used traditional posterior approach decompression and bone graft fusion internal fixation.Compare the clinical efficacy,perioperative related indicators,lumbar function,pain level,bone metabolism indicators,and complications between two groups.Results The observation group had shorter surgery,postoperative bed rest,and hospital stay compared to the control group,with less intraoperative blood loss compared to the control group(P＜0.05).The incidence of complications in the observation group was lower than that in the control group,and the total clinical effective rate was higher than that in the control group(P＜0.05);One week and three months after surgery,the levels of bone specific alkaline phosphatase(BALP),osteocalcin(BGP),and bone morphogenetic protein-2(BMP-2) in the observation group were higher than those in the control group(P＜0.05);At 1 week and 3 months after surgery,the Oswestry Dysfunction Index(ODI) and Japanese Orthopedic Society Low Back Pain Assessment Scale(JOA) scores in the observation group were higher than those in the control group,while the visual analog scale(VAS) score was lower than that in the control group(P＜0.05).Conclusion The treatment of degenerative lumbar spinal stenosis with percutaneous transforaminal endoscopy is less traumatic,beneficial for recovery,safer,and has a good therapeutic effect.

Key words: percutaneous intervertebral foramen technique; internal fixation with decompression and bone grafting through posterior approach; lumbar spinal stenosis