Efficacy And Radiographic Analysis Of Oblique Lumbar Interbody Fusion For Degenerative Lumbar Spondylolisthesis

Background: To compare the clinical efficacy and radiographic analysis of oblique lumbar interbody fusion(OLIF)and traditional posterior lumbar interbody fusion(PLIF)in treating degenerative lumbar spondylolisthesis(DLS).Methods: Grade I DLS patients admitted to the Third Hospital of Hebei Medical University were retrospectively reviewed.In sum,78 patients that underwent OLIF(n=31)and PLIF(n=47)treatment of DLS were recruited.Clinical data including clinical and radiological evaluations were collected preoperatively and at each follow-up.Japanese Orthopaedic Association(JOA)scores,Oswestry Disability Index(ODI),lumbar lordosis(LL),disc height(DH),and fusion rates were compared between the OLIF and PLIF groups,and the amount of intraoperative and post-operative complications.Results: The operation time for both groups was 131.3±14.6 min in the OLIF group and 156.9±37.4min in the PLIF group,data are statistically different(P<0.001).The intraoperative blood loss was 163.6±63.9ml in the OLIF group and 496.8±122.6ml in the PLIF group,data are statistically different(P<0.001).The length of the surgical incision was 4.63±0.57 cm in the OLIF group and 11.83±1.37 cm in the PLIF group,data are statistically different(P<0.001).The number of intraoperative and postoperative complications for both groups was 10 in the OLIF group and 20 in the PLIF group.After statistical analysis,there was no significant difference in the preoperative JOA scores and Oswestry Disability Index(ODI)between the two groups.Significant clinical improvement was observed in JOA scores and ODI when comparing preoperative evaluation and final follow-up,data are statistically different(P<0.05).There was no significant difference when comparing preoperative LL and DH for either group.Postoperative reexamination was improved as compared to preoperative exams..Conclusion: For DLS patients,both OLIF and PLIF can achieve good results.Furthermore,OLIF displays marked advantages including smaller surgical incisions,shorter anesthesia times,decreased intraoperative blood loss,and postoperative pain better relieved.