what causes si joint dysfunction
Introduction. A painful sacroiliac joint is one of the more common causes of mechanical low back pain. Sacroiliac (SI) joint dysfunction is a term that is used to describe the condition-because it is still unclear why this joint becomes painful and leads to low back pain.Sacroiliac joint dysfunction can be a nuisance but it is seldom dangerous and rarely leads to the need for surgery.njury to the SI joint is thought to be a common cause of pain. Injury can occur during an automobile accident. One common pattern of injury occurs when the driver of a vehicle places one foot on the brake before a collision.