The sacroiliac joint is at the back of the pelvis where the sacrum at the base of the spine.
meets the left and right iliac bones. It is an extremely strong joint and allows very little movement, never the less it can become painful and cause problems.
The cause of sacroiliac joint problems is often unclear. These may arise due to excessive movement of the joint leading to straining of the ligaments. Sometimes SI joint problems arise because of an inflammatory condition, with some forms of arthritis.
Deep pain is felt low in the back and around the top of the buttocks. It may be one sided or both sides, and can radiate into the groin or the sides of the thighs.
If you think you have this injury it is well worth getting it checked out by Mr Willis-Owen. In the mean time you should avoid any aggravating activities with may prolong the problem.
Treatment involves first confirming the diagnosis, then establishing the underlying cause. Options may include activity modification, physiotherapy, orthotics and anti inflammatories. Rarely an injection is needed. If properly treated there should not be any significant long term effects.
Mr Willis-Owen suffered with Sacroiliac joint pain when rowing a lot, it settled with some technique modifications and physio.