HIỆU QUẢ LÂM SÀNG CỦA SÓNG CAO TẦN XUNG CAN THIỆP HẠCH RỄ LƯNG TRONG ĐIỀU TRỊ ĐAU KIỂU RỄ THẦN KINH CỘT SỐNG

Abstract

Objective: To evaluate the clinical efficacy of pulsed radiofrequency (PRF) targeting the dorsal root ganglion (DRG) in the interventional treatment of spinal radicular pain.

Methods: A prospective, non-controlled interventional clinical study was conducted on 46 patients with chronic radicular pain in the cervical and lumbosacral spine at Thanh Nhan Hospital. Patients underwent PRF intervention targeting the DRG under fluoroscopic guidance. Pain intensity was assessed using the Visual Analog Scale (VAS), disability levels were evaluated using the Oswestry Disability Index (ODI) and Neck Disability Index (NDI), and patient satisfaction was measured with the Patient Global Impression of Change (PGIC). Assessments were conducted at baseline, 48 hours, 1 month, 3 months, and 6 months after intervention.

Results: The mean VAS score decreased significantly from 5.84 ± 1.17 before treatment to 1.00 ± 1.31 at 6 months (p<0.05). At 6 months, 52.2% of patients reported complete pain relief, 43.5% mild pain, and only 4.3% moderate pain (p<0.0001). The mean ODI score improved from 44.1 ± 12.5 to 14.5 ± 11.6, and the mean NDI score decreased from 40.7 ± 14.3 to 6.7 ± 7.0 (p<0.05). PGIC outcomes indicated that 82.6% of patients experienced moderate to substantial improvement in pain.

Conclusion: PRF targeting the DRG is an effective and safe interventional technique in reducing spinal radicular pain, improving disability, and enhancing patient satisfaction. It may be considered a valuable alternative for patients with chronic radicular pain who do not respond to conservative treatment and are not yet surgical candidates.