Magnetic resonance images of sacroiliac joints. Shown are T1-weighted semi-coronal magnetic resonance images through the sacroiliac joints (a) before and (b) after intravenous contrast injection. Enhancement is seen at the right sacroiliac joint (arrow, left<unk> de of image), indicating active<unk> . This patient had psoriatic arthritis.Sacroiliitis is a condition caused by inflammation within the sacroiliac joint. This joint is located where the base of the spine, known as the sacrum, and the pelvis, known as the ilium, intersect. "Itis" is a Latin term denoting inflammation.<unk> nce<unk>  can describe any type of inflammation found within the sacroiliac joint, there can be a number of issues that cause it. These include: * Degenerative arthritis, or osteoarthritis of the spine, can cause degeneration within the sacroiliac joints and lead to inflammation and joint pain. * Any form of spondyloarthropathies, which includes ankylosing spondylitis, psoriatic arthritis, reactive arthritis or arthritis related to inflammatory bowel diseases, including ulcerative colitis or Crohn's disease. * Pregnancy can cause inflammation as a result of the widening and stretching of the sacroiliac joints to prepare for childbirth. Additionally, the added weight carried during childbearing can put an extra amount of stress on the<unk>  joints, leading to abnormal wear. * Traumatic injury such as a fall or car crash that affects the lower back, hips, buttocks or legs. * * Though rare, infection within the sacroiliac joints or another part of the body, such as a urinary tract infection, can cause inflammation.
Sacroiliitis
Knee arthritis
Shoulder arthritis
Epicondylitis
Sprain
Femoral hernia
Osteochondritis
Back strain