title: Lumbar apophyseal joint arthrography.
abstract: 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.
mesh_terms: D000328:Adult; D000368:Aged; D001175:Arthrography; D006801:Humans; D007596:Joints / Q000033:anatomy & histology; D008161:Lumbosacral Region / Q000000981:diagnostic imaging*; D008875:Middle Aged