A Clinical Study On The Application Of Posterior Lumbar Interbody Fusion Using A Full Endoscopic Channel System In The Treatment Of Single-Segment Lumbar Spinal Stenosis

Objective: To investigate the safety and clinical efficacy of posterior lumbar interbody fusion using a full endoscopic channel system in the treatment of single segment lumbar spinal stenosis.Method: Patients with single segment lumbar spinal stenosis with lower lumbar instability were selected in the spinal surgery department of Chifeng Municipal Hospital from September 2020 to March 2022,randomly divided into the experimental group(Group A)and the control group(Group B),in which the experimental group was used full endoscopic channel system posterior lumbar interbody fusion(FE-PLIF),the control group used the conventional open posterior lumbar interbody fusion(PLIF).Of the 62 patients,31(50%)are males,31(50%)are females,Age in group A was 52.03 ± 7.90 years,The Group B age was 54.18 ± 6.78 years,course from1-15 years,There were 9case about L3/L4,36 case about L4/L5,and 17 case about L5/S1.Record intraoperative blood loss,operation duration,surgical incision length,postoperative bed time,hospital stay,VAS score,ODI score,JOA score,Mac Nab score and Brantigan fusion grade,lumbar lordosis angle(LLA),segment lordosis angle(SLA),disc height(DH),cross-sectional area of the spinal canal(CSAC)and etc.Comparanalysis of the surgical effect and long-term rehabilitation level,and evaluate the surgical efficacy of FE-PLIF technique.Result:All the selected subjects completed surgical treatment and received complete follow-up data.The results of this project show that,the VAS score,ODI score and JOA score from the FE-PLIF technique treated patients with single-level lumbar degeneration were not significantly different from the patients in the control group;There was no significant difference in Mac Nab score and fusion grade at six months after surgery;Intraoperative blood loss in group A 175.00(158.75,212.50)ml was significantly less than group B 421.25±89.49 ml,Duration of surgery A225.44±20.51 min was significantly longer than group B 127.43±8.42 min,Incision length group A 7.50(7.50,7.80)cm was significantly shorter than group B 9.41±0.84 cm,Postoperative bed rest time in Group A 1.00(1.00,2.00)d was significantly shorter than3.00(2.00,3.00)d in Group B,Postoperative hospitalization days in Group A of 4.00(4.00,5.00)d were significantly shorter than that of 7.00(7.00,8.00)d in Group B;There was no statistical difference in the changes of LLA,SLA,DH,and CSAC before and six months after surgery.Conclusion: FE-PLIF and traditional open PLIF for the treatment of single level lumbar spinal stenosis can achieve equally excellent nerve decompression and vertebral fusion,improve the patients’ quality of life.