Download Sacroiliac Joint Rhizotomy What is the SI joint? The SI joint is formed

Sacroiliac Joint Rhizotomy
What is the SI joint?
The SI joint is formed by the joint surfaces of the sacrum and iliac bones. The SI joints are major joints in the
body and bear the weight of the trunk and are thus subject to the development of strain and arthritis.
What are the indications for this procedure?
Radiofrequency lesioning of the SI joint is indicated for those patients who have received short-term relief of pain
following injection of the sacroiliac joint with local anesthetic/steroid and have failed treatment with more
conservative therapy.
What is a Rhizotomy?
A Rhizotomy (radio frequency lesioning) is a procedure that sends radio waves (heat) through a needle to
damage small sensory nerve endings of the joint and interrupt pain signals.
How is the SI joint Rhizotomy done?
The patient will lie face down on an x-ray table. The skin over the area to be treated is cleaned with an
antiseptic solution. Using fluoroscopic (x-ray) guidance, the affected sacroiliac joint is identified. The doctor will
then inject some anesthetic (numbing) medication into the affected area. This may sting for a few seconds. The
doctor will then with the assistance of a fluoroscope (live x-ray) will insert a special radio frequency needle to the
joint. The first radiofrequency lesion is created and then subsequent lesions will be made all along the SI joint.
The number of lesions made to the joint will depend on the size of the joint.
Will I be put to sleep?
You will not be put to sleep since it is extremely important for you to be awake enough to tell the doctor
what you are feeling. The doctor or nurse present during the procedure will administer intravenous sedation to
help you become comfortable or relaxed. For your safety and comfort, you will be connected to monitoring
equipment (EKG monitor, blood pressure cuff, and a blood-oxygen monitoring device). You may be given oxygen
if necessary during the procedure.
How long does it take?
The Rhizotomy takes 15-20 minutes, but the entire procedure usually takes 30-45 minutes.
Potential Risks and Complications:
As with all invasive medical procedures, there are potential risks and complications associated with this
procedure. However, in general the risk is low, and complications are rare. The major complication of lesioning of
the sacroiliac joint is post-procedure pain. The other complications include: infection and trauma to the sciatic
nerve.
What are the discharge instructions?
You are advised to avoid doing any strenuous activities, unless instructed by your physician. You should not drive
the day of the injection. You may notice a slight increase in pain lasting for several days as the numbing
medication wears off. You can apply an ice or cold pack to the injected area to help provide pain relief if
necessary. Continue to take your regular medications as directed. Please call the office for any unusual
symptoms or side effects.