The sacroiliac (SI) joint connects the triangular bone at the bottom of the spine (sacrum) to a part of the pelvis known as the iliac bone. Though the SI joint isn’t flexible, it is strong and stable, transferring the forces of the upper body to the pelvis and legs.
Because of its importance in the skeletal system and its shock-absorbing nature, the SI joint can be prone to wear and tear. Symptoms that present when there is an issue with the SI joint may include pain that begins in the thigh and/or buttock, then radiates down the leg.
The cause of SI joint pain is typically due to SI joint dysfunction. SI joint dysfunction can be the result of too much movement (hypermobility) or too little movement (hypomobility) of the joint. Generally, it is more common in young and middle-aged women.
In some cases, the pain may be due to sacroiliitis, a term used to describe any type of inflammation in the SI joint. This pain can be observed after trauma, pregnancy (with expansion of the pelvis) or after spinal fusion surgery.
Sacroiliitis is often an aspect of an inflammatory condition affecting the spinal column. Conditions include:
SI joint fusion may be recommended if patients have persistent symptoms and all other treatment modalities have failed, such as physical therapy, injections or medications. Patients may also be offered SI joint fusion after having positive relief from one to two SI joint injections from an interventional pain physician.
In most cases, SI joint fusion surgery is minimally invasive and performed through a small incision. This approach usually allows patients to have a shorter hospital stay (patients generally go home the same day as the surgery), shorter recovery time and a reduced risk of complications.
Different methods include:
At IGEA Brain & Spine, our surgeons specialize in only the most advanced techniques for SI joint fusion. In doing so, we are able to improve quality of life for patients living with these and other painful conditions of the spine, as well as the brain and neuroendovascular system.
For more information on SI joint fusion or to schedule an appointment with one of our specialists, contact us today.