Health Topics

Sacroiliac Injection (SI)

A sacroiliac joint injection is an injection in the joint attaching the lower portion of the spine (sacrum) to the pelvis (iliac bone).

It is a large, but narrow joint that can become irritated and inflamed for many reasons.

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Purpose of Sacroiliac Injections

Sacroiliac Injections Procedure

Possible Complications With Sacroiliac Injections

After Sacroiliac Injections

Call Your Child's Doctor If:


More Information

  • Irritation or inflammation of the sacroiliac joint can cause pain. It may also limit daily functions such as walking, turning in bed, playing sports or other activities.

Last Updated: 12/2013