What is a sacroiliac joint injection?
Sacroiliac joint injection is an injection into the large, bilateral joint in the low back towards the buttocks. The joint serves as a fusion between the iliac bone and the sacral bone. It is a common source of low back pain where the lumbar back is not involved. This is easily diagnosed, mostly by clinical exams, radiological studies, and MRIs. Injections to this area are guided by an x-ray machine with a needle guided into the joint which provides cortisone and local anesthetic. A series of one to three injections will usually be very beneficial to diagnose and treat this pain.