Lumbar apophyseal joint arthrography.
Lumbar apophyseal (facet) joint arthropathy is an important cause of low back pain and sciatica. Apophyseal joint arthrography sometimes shows "leakage" of contrast medium from the joint capsule. A histological explanation for this "leakage" at the lumbo-sacral apophyseal joint is suggested.
D000328:Adult; D000368:Aged; D001175:Arthrography; D006801:Humans; D007596:Joints / Q000033:anatomy & histology; D008161:Lumbosacral Region / Q000000981:diagnostic imaging*; D008875:Middle Aged