What Are Sacroiliac Joints?

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Introduction
The sacroiliac joints are formed by the two innominate bones, specifically the ilium, and the fused vertebrae that make up the sacrum. 1 They are “part synovial and part syndesmosis” 2(p.649) and one of only three joints in the human body in which movement is not directly controlled by muscles. 3(p.16) Despite this, thirty-five muscles do attach directly to the sacrum and the innominate bones, 4(p.228) thus they “directly or indirectly influence the biomechanics of [the] joints above and below” 5(p.229) even without having muscles acting upon the joint. Movement at the sacroiliac joints are mainly rotational, but the joint acts “primarily as a shock absorber”, 3(p.16) though it can also help weight transfer between the lower limbs …show more content…

7 It can also present in many different manifestations, including acute, dull and referred. 7 When pain is caused by the sacroiliac joints it can be difficult to predict the referral patterns, though they are commonly described as following the sciatic nerve distribution, namely the buttock, posterior thigh and posterior lower leg, or upper and lower lumbar, abdomen, buttock and groin, though the buttock seems to be most common. 6(p.19) Sacroiliac joint pain is reportedly more common in women than in men, which may be attributed to the differences in sacral width. …show more content…

She also had stiffness in her upper back and neck due to two motor vehicle accidents in 2010 and 2012, though the pain in the buttocks and legs was the pain she wished to have focused on. The patient had previously had Bell’s palsy in 1989 and 1994, as well as two c-sections in October 2000 and February 2002. Her activity level as described as moderate to low. She had also broken 3 fingers, one during the treatment term, and a broken toe. The only supplement or medication the patient reported taking was vitamin d. The patient did not see a doctor in regards to the pain in her gluteal region, nor had she had any formal treatments done to help alleviate the pain, though she had had her husband massage the

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