title: Clinical sacroiliac tests in ankylosing spondylitis and other causes of low back pain--2 studies.
abstract: Independent assessment by 2 observers of 4 tests for sacroiliac (SI) pain in patients with either mechanical/degenerative low back pain (M/D LBP) or ankylosing spondylitis (AS) showed all 4 to be reproducible, but only 2 of them, namely, pressure over the anterior superior iliac spines and pressure over the lower half of the sacrum, gave worthwhile discrimination. Positive results in these 2 tests were significantly associated with definite AS but also with the combination of low back pain, the HLA B27 antigen, and normal or near normal radiographs, a condition we have called presumptive ankylosing spondylitis.
mesh_terms: D000293:Adolescent; D000328:Adult; D001416:Back Pain / Q000175:diagnosis*; D005260:Female; D006680:HLA Antigens / Q000032:analysis; D015796:HLA-B27 Antigen; D006801:Humans; D008297:Male; D008875:Middle Aged; D010808:Physical Examination / Q000379:methods; D011247:Pregnancy; D011312:Pressure; D011446:Prospective Studies; D012446:Sacroiliac Joint; D013167:Spondylitis, Ankylosing / Q000175:diagnosis*
chemical_list: D006680:HLA Antigens; D015796:HLA-B27 Antigen