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Sacroiliac (SI) Joint Injections

The Sacroiliac (SI) Joint is part of the pelvis. The pelvis is comprised of many bones, muscles, and tissue. The major bones are the ilium (the largest bone of the pelvis that looks like two kidney shaped bones on either side), and the sacrum (the triangular shaped bone at the base of the spine).

The SI joint is where the ilium and sacrum meet on both sides and are joined by strong ligaments. It doesn’t have much motion, and is prone to dysfunction simply by design: The SI joint acts as a shock absorber, and transmits forces of the upper body to the pelvis and legs. As many other joints in the body do, the SI joint can become inflamed, causing great pain or discomfort leading to SI Joint Dysfunction.

We use live x-ray guidance to insert a needle into the SI joint. We will inject an anti-inflammatory steroid that will help relieve the pain by relieving the inflammation.

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