Sacroiliac Joint Injection

A sacroiliac injection places local numbing medication in the sacroiliac joint (the lower region of your back and buttocks), where your pelvis joins the spine. Once those joints become irritated, they may cause pain in the lower back, buttocks, abdomen, groin, or legs. Cortisone (a steroid) will help to reduce the inflammation that may exist within the joint , thus offering relief from pain.