The Sacroiliac (SI) joint and Low Back Pain (LBP)
As with other joints in the body, the sacroiliac (SI) joint can become damaged, can suffer from wear and tear, or the ligaments supporting the joint may be stretched or injured. This may result in altered function of the SI joint (SI joint dysfunction) which may result in pain in the buttocks, lower back, groin and even leg pain. SI joint dysfunction and associated pain can be caused by a specific traumatic event (disruption) or can develop over time (degeneration).
Trauma (common events that may cause SI joint disruption)
Degeneration (common causes of SI joint degeneration)
Pain in the lower back and buttocks may be caused by the SI joint, hip, spine, or a combination of these structures. It is important that your doctor thoroughly evaluate ALL potential pain sources during a lower back pain exam. Carefully review the typical symptoms of SI joint pain.