The sacroiliac joint or SI joint is the joint between the sacrum, at the base of the spine and the ilium of the pelvis, which are joined by ligaments. It is a strong, weightbearing synovial joint with irregular elevations and depressions that produce interlocking of the two bones. The human body has two sacroiliac joints: a left and a right joint that often match individually but are highly variable from person to person.
Pain may be caused by sacroiliitis, or an inflammation of the sacroiliac joint(s) or SI joint, a potential cause of low back pain. With sacroiliitis, the individual may experience pain in the low back, buttocks and thighs, and may also have other symptoms of a rheumatic condition such as inflammation in the eyes or psoriasis. Another related condition of the sacroiliac joint is called sacroiliac joint dysfunction (also termed SI joint dysfunction). While SI joint dysfunction may cause low back and sometimes leg pain from inflammation of the sacroiliac joint, some believe that sacroiliac joint dysfunction (also called syndrome) differs from sacroiliitis. The origin of the dysfunction is thought to be a problem with the normal movement of the sacroiliac joints (too much or too little movement in the joint) while sacroilitis (literally inflammation of the sacroiliac joint or SI joint) is usually caused by one of the connective tissue diseases (e.g. ankylosing spondylitis, psoriasis).
Lower Back Pain, Neck Pain, Headaches, Migraines, Scoliosis, Sciatica, Slipped Disc, Herniated Disc, Pinched Nerve, Whiplash, Rib Pain, Elbow Pain, Wrist & Hand Pain, Shoulder Pain, TMJ Pain, SI Joint Pain, IlioTibial Band Pain, Vancouver Chiropractic
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