The effectiveness and safety of a percutaneous controllable curved plasma radiofrequency ablation device of nucleus pulposus
10.12025/j.issn.1008-6358.2025.20241252
- VernacularTitle:新型经皮可控弯等离子髓核消融针的有效性和安全性离体分析
- Author:
Hao ZHOU
1
;
Qianyi ZHANG
2
;
Jiajie LU
2
;
Tao WU
2
;
Yituo CHEN
2
;
Qichen ZHANG
2
;
Xilei LI
2
;
Haikang CAI
1
;
Jie TANG
1
Author Information
1. Department of Orthopedic Surgery, Shanghai Xuhui Central Hospital, Shanghai 200231, China.
2. Department of Orthopedic Surgery, Zhongshan Hospital, Fudan University, Shanghai 200032, China.
- Publication Type:Techniqueandmethod
- Keywords:
plasma radiofrequency;
controllable curve;
nucleus pulposus ablation;
temperature
- From:
Chinese Journal of Clinical Medicine
2025;32(4):659-664
- CountryChina
- Language:Chinese
-
Abstract:
Objective To verify the safety and effectiveness of a new percutaneous controllable curved plasma radiofrequency instrument for nucleus pulposus ablation. Methods A new percutaneous controllable curved plasma radiofrequency instrument were designed (controllable curved group), and its ablation effect was compared with the currently used straight head non-bendable plasma ablation instrument (non-bendable group) on gross specimens. The ablation instrument was placed through the right intervertebral foramen, and continuous ablation on the same intervertebral disc was conducted for three times. The ablation range and trajectory were recorded, and the temperature changes in the front, back, left, and right of the ablation center during and 15 seconds after ablation were monitored by the inserted temperature probe. Results There were no difference in temperature changes in the front, back, right regions of the ablation center during and 15 seconds after ablation between the two groups. The temperature changes in the left region of the ablation center both during and 15 seconds after 3rd ablation were larger than those in the non-bendable group (P＜0.01). Compared with the non-bendable group, the controllable curved group achieved angle control and larger single ablation area (2.282 5 mm² vs 1.135 8 mm², P＜0.000 1). Conclusions This new percutaneous controllable curved plasma ablation instrument can achieve angle control and ablation on the side opposite to the puncture site, increase ablation volume, and is safe.
