Effect comparison between misTLIF with Quadrant passage by single incision and modified PLIF therapy in treating lumbar spinal stenosis

Objective To compare the efficacy of misTLIF with Quadrant passage by single incision and modified PLIF surgery in treatment of patients with lumbar spinal stenosis.Methods A total of 85 patients with lumbar spinal stenosis were divided into group A and group B.Group A was treated with misTLIF with Quadrant passage by single incision and bilateral pedicle screw fixation,while group B was treated with the modified PLIF.The postoperative VAS score,JOA score and ODI score were compared.Results The surgical blood loss of group A was significantly lower than group B (P ＜ 0.05).The JOA score improvement rate after treatment was similar between two groups.Two years later,the ODI score and VAS score in group A were significantly better than group B (P ＜0.05).Conclusion The misTLIF with Quadrant passage by single incision and bilateral pedicle screw fixation is effective in treatment of patients with lumbar spinal stenosis.