Abstract:

Objective To investigate the effect of microscope⁃assisted minimally invasive surgery transfo⁃ raminal lumbar interbody fusion（MIS⁃TLIF）versus open transforaminal lumbar interbody fusion（open⁃TLIF）for the treatment of two⁃segment degenerative lumbar stenosis. The short⁃ and medium⁃term outcomes of minimally inva⁃ sive surgery transforaminal lumbar interbody fusion（MIS ⁃TLIF）and open transforaminal lumbar interbody fusion （open⁃TLIF）in the treatment of two⁃segment degenerative lumbar spinal stenosis. Methods A total of 106 patients who underwent surgical treatment for lumbar spinal stenosis at L4⁃S1 segment in our hospital from September 2019 to September 2020 were selected. Fifty⁃one patients treated with microscope⁃assisted MIS⁃TLIF were categorized as the MIS⁃TLIF group，and 55 patients treated with open TLIF were categorized as the open group. The perioperative indexes，functional scores，complications and prognosis，and clinical efficacy of the two groups were compared. Results Intraoperative bleeding，postoperative drainage，time to the floor and hospital stay were significantly better in the microscope⁃assisted MIS⁃TLIF group than in the TLIF group（P < 0.05），and the MIS⁃TLIF group had more operative time and radiation exposure than the TLIF group（P < 0.05），and postoperative VAS scores and ODI scores were significantly lower in both groups compared with preoperative scores（P < 0.05），VAS scores. The MIS⁃ TLIF group was better than the TLIF group at 1 day and 1 month postoperatively（P < 0.05），and the differences between the two groups at 3 months and the final follow⁃up were not statistically significant（P > 0.05），ODI scores： the MIS⁃TLIF group was better than the TLIF group at 1 month and 3 months postoperatively，and the differencesbetween the two ODI scores at the final follow⁃up were not statistically significant（P > 0.05），and the incidence of postoperative complications was not statistically significant（P > 0.05），and the modified There was no significant difference between the two evaluated by MacNab criteria（P > 0.05）. Conclusion The short⁃term clinical efficacy of microscope⁃assisted MIS⁃TLIF for bilateral lumbar spinal stenosis was significantly better than that of open TLIF.

Key words:

two ? segment Lumbar spinal stenosis, minimally invasive surgery transforaminal lumbar interbody fusion, open transforaminal lumbar interbody fusion