Abstract: Objective To explore the clinical efficacy of percutaneous endoscopy and oblique lateral lumbar interbody fusion(olif) in the treatment of traumatic grade Ⅰ and Ⅱ lumbar spondylolisthesis(meyerding). Methods 155 patients with traumatic grade Ⅰ and Ⅱ lumbar spondylolisthesis treated in our hospital from March 2018 to January 2020 were selected.According to different surgical methods,they were divided into two groups.Group A(76 cases) underwent percutaneous endoscopic assisted lumbar interbody fusion,and group B(79 cases) underwent oblique lateral lumbar interbody fusion.The operation conditions of the two groups,preoperative,3 months and 12 months after operationintervertebral disc height,intervertebral foramen and width,lumbar lordosis,visual analog pain scale(VAS),Oswestry disability index(ODI),36 concise health survey scale(SF-36) and complications were observed. Results The operation time and blood loss in group A were (155.32±10.21)min and (35.10±8.65)ml,respectively;The operation time and blood loss in group B were (160.43±19.87)min and (80.10± 13.91 )ml,respectively(P<0.05).Compared with group B,group A had smaller intervertebral foramen and larger intervertebral foramen width 3 months and 12 months after operation(P<0.05).There was no statistical significance in the comparison of lumbar lordosis angle between the two groups(P>0.05).Compared with group B,the scores of 36 items of concise health survey scale in group a increased(P<0.05).There was no statistical significance between the two groups in VAS,ODI at three months after surgery and SF-36 scores at 12 months after operation(P>0.05).There was no statistically significant difference in complications between the two groups at 3 months and 12 months after surgery(P>0.05).Conclusion Compared with oblique lateral lumbar interbody fusion,percutaneous endoscopic assisted lumbar interbody fusion is safer and more effective in the treatment of traumatic grade Ⅰ and Ⅱ lumbar spondylolisthesis.

Key words: percutaneous endoscopy, lumbar interbody fusion, oblique lumbar interbody fusion, low-grade lumbar spondylolisthesis, pain, quality of life