The EP Group

Accredited Exercise Physiologists

What is Sacroiliac Joint Dysfunction and how does it cause pain?

The Sacroiliac Joint (SIJ) is the link between your spine and your pelvis. This joint is very rigid and tough, generally allowing only a few degrees of movement. The cartilage at the SIJ acts as a shock absorber between the bones at this joint. If the cartilage is worn the bones begin to rub on each other and SIJ osteoarthritis occurs. This is the most common cause of SIJ dysfunction. Other forms of arthritis including Rheumatoid, Psoriatric, Gout and Ankylosing Spondylitis can cause SIJ dysfunction. SIJ dysfunction can also present as a result of mechanical, strength or movement deficiencies acquired over one’s life. In this case, there are two main causes of sacroiliac joint dysfunction, which inherently leads to sacroiliac joint pain. They are instability or hypermobility and stiffness or hypomobility. Hypermobility is the more common source of SIJ dysfunction from this perspective.. The best method of combatting this type of SIJ pain is with corrective exercise. Please contact us if you need more information on ridding yourself of SIJ pain.


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