Pain Management Clinic, Department of Anesthesiology, Shiga University of Medical Science Hospital, Otsu, Shiga, Japan.
Korean J Pain. 2012 Jul;25(3):155-60. doi: 10.3344/kjp.2012.25.3.155. Epub 2012 Jun 28.
We have developed an intradiscal pulsed radiofrequency (Disc PRF) technique, using Diskit II® needles (NeuroTherm, Wilmington, MA, USA), as a minimally invasive treatment option for chronic discogenic low back pain (LBP). The purpose of this study was to compare the representative outcomes of Disc PRF and Intradiscal Electrothermal Therapy (IDET) in terms of pain relief and reduction of disability.
Thirty-one patients with chronic discogenic LBP who underwent either Disc PRF (n = 15) or IDET (n = 16) were enrolled in the study. A Diskit II® needle (15-cm length, 20-gauge needle with a 20-mm active tip) was placed centrally in the disc. PRF was applied for 15 min at a setting of 5 × 50 ms/s and 60 V. The pain intensity score on a 0-10 numeric rating scale (NRS) and the Roland-Morris Disability Questionnaire (RMDQ) were assessed pretreatment and at 1, 3, and 6 months post-treatment.
The mean NRS was significantly improved from 7.2 ± 0.6 pretreatment to 2.5 ± 0.9 in the Disc PRF group, and from 7.5 ± 1.0 to 1.7 ± 1.5 in the IDET group, at the 6-month follow-up. The mean RMDQ also showed significant improvement in both the Disc PRF group and the IDET group at the 6-month follow-up. There were no significant differences in the pretreatment NRS and RMDQ scores between the groups.
Disc PRF appears to be an alternative to IDET as a safe, minimally invasive treatment option for patients with chronic discogenic LBP.
我们开发了一种椎间盘内脉冲射频（Disc PRF）技术，使用 Diskit II®针（NeuroTherm，威尔明顿，MA，美国），作为治疗慢性椎间盘源性腰痛（LBP）的一种微创选择。本研究的目的是比较 Disc PRF 和椎间盘内电热疗法（IDET）在缓解疼痛和减少残疾方面的代表性结果。
31 例慢性椎间盘源性腰痛患者行 Disc PRF（n=15）或 IDET（n=16）治疗。将 15-cm 长的 Diskit II®针（20 号针，带有 20-mm 活性尖端）置于椎间盘中央。PRF 在 5×50ms/s 和 60V 的设置下应用 15 分钟。在治疗前、治疗后 1、3 和 6 个月时，使用 0-10 数字评分量表（NRS）和 Roland-Morris 残疾问卷（RMDQ）评估疼痛强度评分。
Disc PRF 组治疗后 6 个月时 NRS 从治疗前的 7.2±0.6 显著改善至 2.5±0.9，IDET 组从 7.5±1.0 改善至 1.7±1.5。在治疗后 6 个月时，Disc PRF 组和 IDET 组的 RMDQ 评分也均显著改善。两组治疗前的 NRS 和 RMDQ 评分无显著差异。
对于慢性椎间盘源性腰痛患者，Disc PRF 似乎是 IDET 的一种替代治疗方法，是一种安全、微创的治疗选择。
