title: Lumbar nerve root compression by synovial cysts of the ligamentum flavum. Report of four cases.
abstract: Synovial cysts of the ligamentum flavum, measuring 1 cm in diameter, caused compression of the lumbar nerve roots in four patients. The authors discuss the association of these cysts with advanced focal spondylosis, and speculate on their etiology.
mesh_terms: D000328:Adult; D005260:Female; D006801:Humans; D008023:Ligaments, Articular / Q000473:pathology; D008161:Lumbosacral Region; D008297:Male; D008875:Middle Aged; D009408:Nerve Compression Syndromes / Q000209:etiology* / Q000473:pathology; D013126:Spinal Nerve Roots / Q000473:pathology; D013128:Spinal Osteophytosis / Q000150:complications / Q000473:pathology; D013581:Synovial Cyst / Q000150:complications* / Q000473:pathology