The management of chronic lumbar radicular and neuropathic pain is complex and the treatment success rates are low. Pulsed radiofrequency (PRF) has been described in these cases. In order to determine whether high-voltage PRF show better results than PRF a prospective, doble-blinded and randomized study is conducted in patients with chronic lumbar radicular and neuropathic pain.
Patients over 18 years of age.
Unilateral pain radiating to the lower extremity (with or without lumbar pain), which clinically corresponds to the path of the corresponding dermatomes.
Correlation between clinical symptoms and lesion observed by magnetic resonance imaging (MRI).
Radicular syndrome of three months or more of evolution.
Patients under 18 years of age.
Patients with non-radicular low back pain.
MRI not consistent with the patient's symptoms.
Patients with peripheral neuropathy of the lower extremities.