• Neuromodulation · Jan 2024

    Randomized Controlled Trial

    Efficacy of High-Voltage Pulsed Radiofrequency of the Dorsal Root Ganglion for Treatment of Chronic Lumbosacral Radicular Pain: A Randomized Clinical Trial.

    • Burak Erken and Ipek S Edipoglu.
    • Department of Anesthesiology, Division of Pain Medicine, Çam ve Sakura City Hospital, Istanbul, Turkey.
    • Neuromodulation. 2024 Jan 1; 27 (1): 135140135-140.

    BackgroundPulsed radiofrequency (PRF) is an efficacious treatment for patients with lumbosacral radicular pain, but the optimal radiofrequency parameters are inadequately described. We hypothesized that high-voltage radiofrequency therapy around the dorsal root ganglion can be more effective and enduring than the standard voltage PRF therapy.Materials And MethodsThis was a prospective and randomized study. Patients were divided into two groups. In group 1 (high-voltage group), PRF was applied at 60 V to the patients. Patients in group 2 (low-voltage group) received PRF treatment at 45 V. The patients were evaluated using a numeric rating scale (NRS) and the Oswestry Disability Index (ODI). Evaluation scales were repeated before the intervention and at the first and sixth months after the treatment.ResultsThe study included 41 analyzed patients. There was no statistically significant difference between the groups at the first-month NRS (p > 0.05). Sixth-month NRS scores were lower in the high-voltage group (p = 0.016). The groups showed no statistically significant differences in the one-month ODI scores (p > 0.05). When the NRS values were analyzed with linear regression, a positive correlation was found between the sixth-month NRS values and high-voltage PRF (odds ratio: 0.385; p = 0.013). Comparison of the treatment success in terms of time showed statistically significant results in both groups in the first and sixth months (p < 0.05).ConclusionsThe results of our study revealed that both low- and high-voltage PRF are effective. Because of the lower sixth-month NRS values in the high-voltage group and the similar complication rate, it was considered that high-voltage PRF can be a promising application.Copyright © 2022 International Neuromodulation Society. Published by Elsevier Inc. All rights reserved.

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