Some types of chronic pain can be treated with radiofrequency ablation by disabling the nerve fibers carrying pain signals through the spine to the brain. Approximately 70% of RFA procedures produce pain relief that lasts a year or more in the right patients. Those suffering from chronic arthritis or degenerative neck and back problems might benefit from the technique. Symptoms of chronic venous insufficiency include blood pooling in the legs, ankles, and feet, along with pain due to insufficient blood flow from diseased veins in the legs to the heart. Using radiofrequency ablation, the diseased vein is sealed off and blood flow is redirected to healthier veins. Some additional conditions radiofrequency ablation can be used to treat include cancer pain, facial pain as a result of trigeminal neuralgia, heart rhythm problems, tumors, and pain in the back, neck, and knee.