Learn About Sacroiliac (SI) Joint Fusion

Sacroiliac (SI) joint fusion immobilizes the large bones and bone fragments of the pelvis. This is completed through a minimally invasive approach.


This approach may be used sacroiliac joint fusion for conditions including degenerative sacroiliitis and sacroiliac joint disruptions.

Symptoms may mimic lower back pain and it may be felt while sitting or lying down. This pain may be intensified by climbing hills or stairs. This is a unilateral dull ache below L5 and can include radiating pain in the groin, thigh, or buttocks. An exam, SI joint provocation tests, and SI joint injections should be used to determine if the SI joint is the primary pain generator.



Depending on the pathology, a SI joint fusion may be an option when non-surgical techniques do not relieve symptoms. The primary goals are to provide relief of symptoms by stabilizing the sacroiliac joint.

Speak with your doctor if you are experiencing symptoms or for more information.

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