
Keywords: مقیاس درجه بندی درد عددی; Cost-effectiveness; Dorsal root ganglion; Low back pain; Lumbar; Prognostic; Pulse radiofrequency; Randomize; DRG; Dorsal root ganglion; DRG-PRF; Dorsal root ganglion pulsed radiofrequency; NPRS; Numeric pain rating scale; NSAID; Nonsteroidal anti-inflamm