Sacroiliac pain can be aggravated by sitting or standing for a long time, standing on one leg, climbing stairs, going from one sitting position to another, and running. Possible causes of sacroiliac pain include arthritis, traumatic injuries, pregnancy and postpartum, systemic inflammatory conditions, and infections. Sacroiliitis can be difficult to diagnose. It can be confused with other causes of low back pain.
It has been linked to a group of diseases that cause inflammatory arthritis of the spine. Treatment may include physical therapy and medications. Arthritis can cause this problem. A type that affects the spine, called ankylosing spondylitis, can damage the sacroiliac joint.
It will also hurt when the cartilage above the sacroiliac joint slowly wears out as you age. If sacroiliac joint pain is due to inflammatory back pain, such as that caused by ankylosing spondylitis, there are other distinctive features, such as pain that lasts longer than three months, feels better with movement and worsens with rest and often wakes you up in the middle of the night. The doctor can use a needle to permanently damage the nerve that sends pain signals from the sacroiliac joint to the brain. If your lower back or buttocks hurt when you get out of a chair or climb stairs, the sacroiliac joint (SI) may be to blame.
The body releases hormones that cause joints to relax and move more, causing changes in the way joints move. In fact, research suggests that the sacroiliac joint is the source of pain in 15 to 30 percent of people with chronic low back pain. Together, these joints support the weight of your upper body when you're standing or walking, helping to absorb impact and reduce pressure on your spine. Your doctor may also inject a solution of natural ingredients, such as saline, and anesthetics into your joint.
Physical therapy also facilitates the movement of the sacroiliac joints in their full range of motion. Radiofrequency ablation is only considered if temporary pain relief is achieved after injection into the sacroiliac joint. These two joints meet where the sacrum (the last triangular section of the spine) meets the ilium (a part of the pelvis). If you get up from the chair and feel pain in your lower back, it could be that the sacroiliac joint is acting poorly.
These two joints are formed by the bone structure above the coccyx, known as the sacrum, and the upper part of the pelvis, known as the ilium. In some cases, doctors inject steroids into the sacroiliac joints to help reduce inflammation and pain. Sometimes it starts to hurt when the ligaments that hold the sacroiliac joint together are damaged, which can cause the joint to move abnormally. You'll most likely feel pain in the sacroiliac joint in the lower back and buttocks, but it can spread to the hips and descend to the thighs, groin, and even the feet.