A Comparative Study On The Efficacy Of Unilateral Biportal Endoscopy Technique And Percutaneous Endoscopic Interlaminar Discectomy For Lumbar Disc Herniation(L5-S1)

Objective:A retrospective study of the clinical outcomes and preoperative and postoperative radiological findings of unilateral dual-channel endoscopic technique(UBE)and percutaneous endoscopic interlaminar discectomy(PEID)for the treatment of lumbar disc herniation for surgical Choose to provide a more useful theoretical basis.Methods:Endoscopic lumbar discectomy using unilateral biportal endoscopy technique or percutaneous endoscopic interlaminar discectomy for the treatment of lumbar disc herniation between March 2020 and December 2020.The patients were divided into UBE group(66 cases)and PEID group(68 cases)according to the surgical methods they received.The lumbar disc cross section area,spinal canal cross section area and dural sac cross-sectional area before and after operation were measured by MR image.The resection rate of lumbar disc protrusion and the degree of dural dilatation after operation were compared.The visual analog scale(VAS)score for leg and back pain,Oswestry Disability Index(ODI),operation time,intraoperative blood loss,incision length and complications were assessed.Clinical and radiological parameters were compared among the two groups.Results:The operation time,intraoperative blood loss and incision length of the PEID group were significantly better than those of the UBE group,and the differences were statistically significant(p<0.05).Compared with the UBE group,the PEID group had a more complete excision of the lumbar disc herniation(L5-S1),and the difference was statistically significant(P<0.01).The dural dilatation was obvious in the unilateral biportal endoscopy technique group and the percutaneous endoscopic interlaminar discectomy,and the area of dural dilatation was similar after operation,and there was no significant difference between the two channels endoscopic group and the percutaneous endoscopic lumbar disc resection group(P>0.05).One week after operation,the VAS score for back pain,VAS score for leg pain,or ODI in the PEID group were significantly lower than those in the UBE group,and the differences were statistically significant(p<0.05).However,there were no significant differences in the VAS score for back pain,VAS score for leg pain,or ODI at the final follow-up among the two groups(p>0.05).According to the modified MacNab criteria,the excellent and good rate was 100.00%in the PEID group and 89.40%in the UBE group,and the difference between the two groups was statistically significant(p<0.05).Conclusion:Compared with unilateral biportal endoscopy technique,percutaneous endoscopic interlaminar discectomy has advantages in average operation time,intraoperative blood loss,surgical incision and imaging results,and has higher therapeutic value.