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SI Joint Pain/Dysfunction

The sacroiliac (SI) joint is the area where the lowest part of the spine (sacrum) fuses with the pelvis. Like other joints in the body, the sacroiliac joint can become inflamed and cause pain and dysfunction. The sacroiliac joint is also surrounded by numerous ligaments that can be inflamed and cause similar pain.


Inflamed sacroiliac joints typically cause low-back or buttock pain. It can present on one side or both. It may spread across the back and buttock, and may radiate to the back of the legs. Pain is worse with the outward turning of your leg while it is bent.

Possible Causes

Sacroiliac joint pain is caused by continuous trauma and stress to the joint.  Risks factors include obesity, pregnancy, prior spine surgery, leg length discrepancies, gait abnormalities, and scoliosis.


At the Center for Pain Management, we will work with you to design the best treatment plan for your unique case. To achieve an accurate diagnosis, our initial evaluation will include a thorough review of your history, a comprehensive examination, and review or acquisition of appropriate imaging.

Conservative treatment of sacroiliac joint dysfunction includes anti-inflammatory medications, physical therapy, and gait assessment. Minimally invasive procedures such as steroid injections into the sacroiliac joint may provide relief. If these joints are confirmed to be the culprit, the transmission of pain signals from this joint can be blocked by radiofrequency denervation.