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John Williams registered Osteopath and Sports Injury Therapist explains Sacroiliac joint pain or SI joint pain, symptoms, assessment and treatment options including mobilization and sports massage.
Pain which is felt at the very bottom of the lower back and sometimes described as a band of pain across the whole width of the back is often caused by sacroiliac joint dysfunction. This means the joints are not functioning effectively and are either hypermobile (move too much) or hypomobile (don't move enough).
Read on for a full list of symptoms, what causes this pain and how it is treated!
Causes of Sacroiliac joint pain can be split into four categories:
Traumatic injuries to the SIJ are caused when there is a sudden impact which 'jolts' the joint. A common example is landing on the buttocks. This kind of injury usually causes damage to the ligaments which support the joint.
Pain due to biomechanical injuries will usually come on over a period of time and often with increased activity or a change in occupation/sport etc. The most common biomechanical problems include:
Hormonal changes, most notably during pregnancy can cause sacroiliac pain. In preparation for giving birth, the ligaments of the pelvis especially increase in laxity. Combining this with an increase in weight putting extra strain on the spine, may lead to mechanical changes which can result in pain.
Spondyloarthropathies are inflammatory conditions which affect the spine. These include Ankylosing Spondylitis which is the most common inflammatory condition to cause SI joint pain.