Clinical Efficacy Of Percutaneous Endoscopic Interlaminar Discectomy And Minimally Invasive Tubular Microdiscectomy In Treatment Of Lumbar Spinal Stenosis

Objective:To investigate the clinical efficacy of percutaneous endoscopic interlaminar discectomy(PEID)and minimally invasive tubular microdiscectomy(MITM)for patients with lumbar spinal stenosis.Methods:The clinical data of 70 patients with lumbar spinal stenosis admitted to Department of Neurosurgery,the First Hospital of Shanxi Medical University from October 1,2019 to October 31,2021 were analyzed retrospectively.Among 70 patients,36 patients were treated with PEID and 34 were treated with MITM.The surgical time,the length of hospital stay after operation,total hospitalization cost,postoperative complications,visual analog scale(VAS)and oswestry disability index(ODI)were compared and statistically analyzed.Results:The hospital stay after operation was shorter in the PEID group than the MITM group [(2.6±1.3)d/(4.5±2.5)d](P<0.05).There was no significant difference between the two groups in terms of the total operative time and the total hospitalization cost(P>0.05).VAS scores and ODI scores of the two groups were decreased at all time points after operation compared with those before operation(P<0.01).There was no significant difference in VAS score and ODI score between the two groups at all time points after operation(P>0.05).There was one case of postoperative recurrence in the PEID group,and two cases of poor incision healing in MITM group.There were 2 cases in the PEID group and 1 case in the MITM group.The patients complained that their walking ability did not improve as expected.Conclusion:In the treatment of lumbar spinal stenosis,the PEID and MITM both have the advantages of minimal-invasion,low complications,low cost and similar clinical efficacy.PEID results in a shorter postoperative hospital stay.