• Saecheol Oh, Sang Ji Kang, and Yoo Jung Park.
• Department of Anesthesiology and Pain Medicine, College of Medicine, St. Vincent's Hospital, The Catholic University of Korea, Suwon, Korea.
• Pain Pract. 2022 Jan 1; 22 (1): 123-126.

AbstractComplex regional pain syndrome is a painful and debilitating syndrome in which the patient presents with disabling pain, edema, and/or vasomotor or sudomotor abnormalities. The mechanism is complex and not well understood. There is no definitive treatment for the condition yet. Pulsed radiofrequency is a minimally invasive, minimal destructive, and safe intervention. It can be used for neuropathic pain. A 40-year-old man with complex regional pain syndrome complained of intractable pain of the lower limb secondary to injury to the saphenous nerve due to a third-degree burn. Conventional medications, epidural block, and sympathetic nerve block provided temporary relief. We performed pulsed radiofrequency of the saphenous nerve for the management of lower limb pain, and the symptoms remained under control at 3 months. To the best of our knowledge, this is the first application of ultrasound-guided pulsed radiofrequency of the saphenous nerve for the management of complex regional pain syndrome.© 2021 World Institute of Pain.

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