Abstract:

Objective This study aimed to preliminarily explore the application of three⁃dimensional visual virtual surgery system combined with self⁃made intervertebral foramen positioning puncture device in percutaneous endoscopic transforaminal decompression（PETD）of lumbar spinal stenosis（LSS）and to evaluate the accuracy， safety and surgical efficacy of this method. Methods A retrospective controlled study was conducted. From January 2021 to December 2021，64 patients（27 male and 37 female，aged（57.1 ± 6.45）years，（range 50 ~ 77 years old）with LSS were treated by PETD. A three⁃dimensional visual virtual surgery system combined with self⁃made intervertebral foramen positioning puncture device was used to establish cannula in 32 patients（visualization group， V group），and traditional conventional methods were used to establish cannula in another 32 patients（routine group，R group）. The hospitalization days，puncture times，puncture time，fluoroscopy times，operation time， visual analog score（VAS），Oswestry dysfunction index（ODI），and complications in the two groups were analyzed. Results The operation and follow ⁃ up were successfully completed in all patients without serious complications. There was no significant difference between two groups in terms of general information，hospitalization days and operation time（P > 0.05）. The V group was better than the R group in puncture time，puncture times and fluoros⁃ copy times，and the differences were statistically significant（P < 0.05）. The VAS score of the two groups after operation was better than that before operation，and the difference was statistically significant（P < 0.05）. The ODI of the two groups after operation was better than that before operation，and the difference was statistically signifi⁃cant（P < 0.05）. Conclusions Through comparative research，this study showed that the three⁃dimensional visual virtual surgery system combined with self⁃made intervertebral foramen positioning puncture device could significantly reduce the puncture times，fluoroscopy times，and puncture time in the treatment of lumbar spinal stenosis using percutaneous endoscopic transforaminal decompression，with high puncture accuracy，safety，and satisfactory surgical effects. Therefore，the proposed method was feasible.

Key words:

 , percutaneous endoscopic surgery； foraminoplasty； transforaminal decompression； lum? bar spinal stenosis； fluoroscopy