What is a Cervical Radiofrequency Nerve Ablation? Cervical radiofrequency nerve ablation, also known as cervical radiofrequency ablation (RFA), is a minimally invasive procedure used to treat chronic neck and upper back pain. It involves the use of radio waves to create heat and destroy a small amount of nerve tissue responsible for transmitting pain signals to the brain The procedure is typically performed on patients who have not found relief from other treatment approaches, such as medication