Description of Sacroiliac Joint Pain

The sacroiliac joint (SI joint) is the joint bridging the lowest segment of the spinal column (sacrum) to the bones of the pelvis. These joints support the upper body when we are standing. After time, the SI joint can develop arthritis and become painful, particularly when walking and climbing stairs. This is called sacroiliac joint pain. The location of pain is generally in the lower back, buttocks and thighs.

Screening and Diagnosis of Sacroiliac Joint Pain

A complete medical history and physical examination are performed to diagnose sacroiliac joint pain. Imaging such as x-rays, MRI or CT may be ordered, but are often unrevealing for sacroiliac joint pain and are typically obtained to rule out other lesions. In addition, one of the most accurate ways to diagnose sacroiliac joint pain is to inject the area with an anesthetic. If the pain goes away, it is likely that the SI joint was causing the pain.

Treatments for Sacroiliac Joint Pain

Non-surgical treatment options are most appropriate to relieve sacroiliac joint pain. The first treatment options usually include chiropractic care, physical therapy and/or medication. If pain persists, injections may be done. Rhizotomy, a procedure done to deaden nerves around the SI joint, may be done to control pain. Rarely is surgery, other than rhizotomy, done to treat sacroiliac joint pain. It is important to discuss treatment options with your doctor in deciding which treatment, if any, may be best for you.