Application of navigation rod for puncture and positioning in percutaneous endoscopic lumbar discectomy

English Keywords:Navigation rod  Percutaneous endoscopic lumbar discectomy  Puncture and locate  Lumbar disc herniation

English Abstract:

  【Abstract】 Objectives: To discuss the effect of navigation rod in percutaneous endoscopic lumbar discectomy(PELD), and to analyze its feasibility and value. Methods: 60 consecutive patients with lumber disc herniation were divided into navigation group and tradition group, each group had 30 cases. Two groups received percutaneous endoscopic lumbar discectomy. Those who received self-made navigation rod to puncture were considered as navigation group, and those who received the traditional C-arm fluoroscopy for puncturing were considered as tradition group. The puncture times, fluoroscopic exposure times, puncture time and VAS after operation between 2 groups were compared. Results: All patients reached good pain relief, and Lasergue sign turn to negative. Compared with the two groups, the average of puncture times were 1.10±0.31 and 10.53±5.55 respectively in navigation group and tradition group(P<0.001). The fluoroscopic exposure times were 8.30±1.24 and 60±15.15 in navigation group and tradition group(P<0.001). The puncture time was 5.05±2.01min and 34.80±6.32min respectively in navigation group and tradition group(P<0.001). The postoperative(1 day, 3 months, 6 months) VAS score of navigation group was 2.6±0.8, 1.8±0.4, 1.4±0.3 respectively, while the VAS score of tradition group was 2.8±1.1, 2.1±0.2, 1.6±0.5 respectively, postoperative VAS scores of the two groups were lower than preoperative ones(P<0.05). There was no statistically difference between two groups with respect to the postoperative ones(P>0.05). Conclusions: It can solve the bottleneck problem of PELD, and improve the success rate of puncture, reduce puncture times, avoid injury and reduce puncture time, greatly reduce the X-ray exposure to surgeon and patient by using the navigation rod, which is worthy of clinical application.