Foot Therapy

Efficacy of Pulsed Radiofrequency Stimulation in Patients

Pulsed radiofrequency stimulation (PRF) is increasingly being applied to alleviate several types of pain including neuralgia, joint pain, and muscle pain (1-5). This technique works by delivering an electrical field and heat bursts to targeted nerves or tissues via a catheter needle tip without damaging these structures (6-8). Conventional radiofrequency (CRF) thermocoagulation exposes target nerves or tissues to continuous electrical stimulation and ablates the structures by increasing the temperature around the tip of the RF needle (9). In contrast to CRF, PRF applies a brief electrical stimulation, followed by a long resting phase; thus, PRF does not produce sufficient heat to cause structural damage (10). During the PRF procedure, the catheter needle tip is placed near the targeted nerves, and then advanced towards the nerves until patients report a tingling sensation and/or dysesthesia at a voltage less than 0.2 to 0.5 V. The tissue temperature is maintained at or below 42°C on average.

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