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Can Sacroiliac Joint Injections Help With Pain Relief?

Sacroiliac joint (SI joint) pain arises from degenerative changes within the SI joint. These changes may cause inflammation. The mainstay of treatment is anti-inflammatory medication, physical therapy, chiropractic care and activity modification. If these treatments fail to provide adequate pain relief, injections may be considered.

SI joint injections may also be used as a diagnostic evaluation. If the pain decreases significantly after the injection, this helps to verify the joint as a source of pain. Injections may provide temporary pain relief or the pain may remain reduced for a long period of time.


What is a Sacroiliac Joint?

The sacroiliac joint is the joint located between the sacrum (which supports the spine) and the ilium bones (which support the sacrum) of the pelvis.

What is the purpose of the Sacrioliac Joint?

Being the link between the ilium bones and the sacrum, this joint is responsible for tranferring the weight of the upper body to the lower extremities. Not hard to see why there may be some pain experienced there from time to time.

pelvic pain
Sacroiliac Joint Pain


Once you have decided to have the injection, the following events take place:

  • Do not eat or drink anything after midnight prior to your joint injection.
  • Discontinue all medications after midnight before your joint injection. If you are on routine medications for heart, blood pressure or diabetes, you can take your medication as usual the morning of your injection with a sip of water.
  • You will be lying on a table in a procedure room.
  • The skin in the area where the joint injection will be made will be cleaned.
  • A local anesthetic will be used to numb the area of the injection.
  • Fluoroscopy, a method used to make images, will be used as the physician passes the needle into the SI joint.
  • A mixture of anesthetic and a steroid (similar to cortisone) is injected into the SI joint(s).
  • The joint injection procedure will take about 30 minutes.
  • You will be in a recovery room for about 30 minutes.
  • It is important that you have someone to drive you home.
  • It is common to experience an increase in pain once the numbing medicine wears off.
  • The steroid does not become effective for 24-36 hours.
  • Activity should be restricted for the first 4-5 days after the joint injection.