Efficiency Of A Newly Designed Body Surface-assisting Puncture Device In Transforaminal Percutaneous Endoscopic Lumbar Discectomy

Objectives:To elucidate the methodology and efficiency of newly designed trajectory-assisting puncture device in transforaminal percutaneous endoscopic lumbar discectomy by comparing the procedual duration,puncture times,radiation exposure,complications and prognosis with controlled groups.Methods:70 patients under-going PELD were included in this retrospective study,including34 males and 36 females.Patients undergoing PELD weredivided into two groups.Those receiving the self-made puncture-assisting puncture device were regarded as group A,while those undergoing conventional method was considered as group B.Procedual duration,puncture times,radiation exposure were recorded and compared.We also compared the ODI score system,VAS and modified Macnab system between the two groups after the surgery in 36 hours,3 month and 6 month.Results:The average puncture times was 1.89 ± 0.57 in group A and 4.34 ± 1.67 in group B(P<0.001).The average radiation exposure times was 5.49 ± 2.21 in group A and 10.6 ±3.67 in group B(P<0.001).The average procedual duration was 79.31 ± 17.96 min in group A and 91.09 ± 18.35 min in group B(P=0.008).There was no significant difference between the two groups concerning the VAS,ODI score system and the modified Macnab after the surgery in 36 hours,3 month and 6 month.Conclusions:Trajectory-assisting puncture device can significantly improve the puncture accuracy of PELD and reduce its fluoroscopy exposure as well as operation time,which indicates its great potential in the future clinical applications.There was no significant difference between the two groups concerning the VAS,ODI score system and the modified Macnab after the surgery in 36 hours,3 month and 6 month.