sacroiliac joints

sacroiliac joints

The firm ligamentous junctions between the sides of the SACRUM and the two outer bones of the pelvis (iliac bones). Normally the sacro-iliac joints are semi-rigid, but in late pregnancy they relax a little to allow easier childbirth. See also RELAXIN.
References in periodicals archive ?
B) Image shows patchy areas of hyperintense signal change involving both sacroiliac joints on coronal STIR image suggests changes of bilateral sacroilitis.
SACROILIAC JOINTS The sacroiliac joints are on either side of your tail bone or sacrum, joining it, on each side, to the ilium bone, the largest bones that form the outer walls of the pelvis.
Anteroposterior plain radiograph of the pelvis revealed irregular contour and erosions of the bones comprising both sacroiliac joints (bilateral stage 3 sacroiliitis) (Figure-1).
He had typical advanced radiological changes with ankylosis of his spine and sacroiliac joints (Figure 1).
The diagnostic techniques included a detailed patient questionnaire about inflammatory back pain; physical examination and patient history; blood tests to assess C-reactive protein levels and the presence of HLA-B27 (a gene that has been linked to spondyloarthritis); and conventional and MRI images of sacroiliac joints.
Ankylosing spondylitis (AS) is a rheumatic disease that causes arthritis of the spine and sacroiliac joints and can cause inflammation of the eyes, lungs, and heart valves.
2,3] They are distributed inferiorly along the iliac crests, over and around the sacroiliac joints, and at the edges of the sacrospinalis muscle (Figure 3).
The pubic symphysis, bilateral sacroiliac joints and ligaments, bilateral hip joints, bilateral sacrotuberous ligaments, and bilateral sacrospinous ligaments were intact.
The earliest, most consistent and most characteristic findings are seen in the sacroiliac joints.
An X-ray of the pelvis showed degenerative changes (Figure 1), and because of the patient's ongoing lower back pain and peripheral joint swelling, magnetic resonance imaging (MRI) of the sacroiliac joints was performed, which showed periarticular edema of the sacrum in the anterior segment along with a slight increase in sclerosis of the right sacroiliac joint in the anterior superior segment.
2) It is often confused with diastasis pubis (a separated symphysis pubis of more than 10 mm, or symphysiolysis), pelvic rupture (rupture of the symphysis pubis and sacroiliac joints simultaneously, which is extremely rare), and even osteitis pubis (partial or complete rupture of the symphysis pubis and requires aggressive treatment).
About 350,000 people in the United States have been diagnosed with AS, a chronic, inflammatory rheumatologic disease primarily affecting the sacroiliac joints and axial skeleton.