Radiofrequency (RF) thermocoagulation is a safe, proven means of interrupting pain signals. Radiofrequency current is used to heat up a small volume of nerve tissue, thereby interrupting pain signals from that particular area. Radiofrequency techniques have been available for treating various pain disorders since the early 1970s. Since the 1980s physicians specializing in chronic pain diagnosis and treatment have found an increasing number of applications for this established technology.
Some more common medical conditions which respond to radiofrequency techniques include chronic low back pain, thoracic spine pain, and sacroiliac joint dysfunction.
Traditional techniques to destroy painful nerves have used chemicals such as phenol or alcohol. Unfortunately, these techniques have significant side effects due to the limited ability to control the spread of these liquids. Radiofrequency needles, accurately placed with the aid of fluoroscopic X-ray machines, generate local heat at the tip when the electrical current is applied, which can be precisely controlled to thermocoagulation painful nerves with minimal tissue damage. The procedures can be performed with little trauma using local anesthesia and intravenous sedation.
What if the pain relief doesn't last?
Radiofrequency treatment of tissue usually blocks pain signals for a prolonged period of time. However, the human body may regenerate pain pathways over time. It is not unusual that the procedure may need to be repeated at some point in the future.
What is the typical procedure?
You will be asked to lie flat on your stomach. After the local anesthetic and IV medication for sedation are administered, the doctor will insert a small needle into the area where you experience pain.
Under the guidance of an X-ray, the doctor will guide the needle to the exact target area. A microelectrode then will be inserted through the needle to begin the stimulation process. During this process, the doctor will ask you if you feel a tingling sensation. The object of the stimulation process is to help the doctor determine if the electrode is in the optimal area for treatment to produce the most relief.
Once the needle electrode placement is verified, treatment can begin. A small radiofrequency (RF) current will travel through the electrode into the surrounding tissue, causing the tissue to heal and eliminate pain pathways. You should alert the doctor if at any time during the procedure you experience discomfort, especially in the extremities. Otherwise, you may experience a slight burning or pressure sensation at the site of the injection.
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What are the risks of radiofrequency thermocoagulation?
As with any procedure, there are some inherent risks, although most of these are minimal. Common risks include but are not limited to bruising, bleeding, headaches, irritation of a nerve or nerve injury, including paralysis, numbness, and weakness. Risks also include infection or reactions to the medications which may cause breathing difficulties and cardiac difficulties which may lead to death. Serious risks and complications are extremely rare, however.
- Stop taking all aspirin, aspirin products, and all nonsteroidal - except Celebrex- 5 days before the procedure.
- If you have questions regarding these types of products or their discontinuation, you should discuss this with one of our staff
- If you take fish oil or Vitamin E supplementation, please stop these 5 days before the injection.
- Do not eat for 6 hours or drink 2 hours before the procedure. You may take routine a.m. medications with a small amount of water
- For your safety, you must have a responsible adult to drive you home. Failure to have a driver may result in the cancellation of your procedure. Taxis are not permitted.
How Radiofrequency Treatments can help you
Radiofrequency treatments are used to reduce pain. The nerve which is responsible for the pain signals is heated up by radio waves, which in turn decreases pain signals from that specific area.