title: [Painful sciatic rubbing caused by benign synovioma of the spinal joints. Apropos of 4 cases].
abstract: Synovioma, a benign neoplasm arising from pigmented villonodular synovium or synovitis, is uncommon. It involves the tendons and joints of the finger, ankle and foot. In this study four cases of villonodular synovioma of spinal joints are reported. The authors studied 555 cases of patients operated for sciatica due to herniated disk. Histopathology showed that in four out of 555 cases sciatica was found to be due to synoviomas of the spinal joints. The patients, three women and one man, were between 54 and 70 years of age and each had had a long history of low back pain with episodes of sciatica. Clinical evaluation at the time of surgery showed moderate severity of signs and symptoms. Roentgenographic studies of all four cases revealed osteoarthritic changes of vertebral apophyses, with two cases of spondylolisthesis. The pathogenesis of synovioma remains controversial and its histopathological characterization -hyperplasia VS/true tumours- has not yet been determined. It is possible that the number of recorded cases of sciatica due to synoviomas is small because surgical and pathological studies in patients with sciatica associated with osteoarthritic changes have not been adequately performed. Surgery consists of a large resection of the capsule and ligament including resection of intraspinal extension. Because this study involves only four cases, the first of which occurred in 1977, the possibility of recurrence cannot be evaluated.
mesh_terms: D000368:Aged; D001416:Back Pain / Q000209:etiology* / Q000601:surgery; D005260:Female; D005500:Follow-Up Studies; D006801:Humans; D007596:Joints / Q000473:pathology; D008297:Male; D008875:Middle Aged; D013584:Sarcoma, Synovial / Q000150:complications* / Q000473:pathology; D012585:Sciatica / Q000209:etiology* / Q000601:surgery; D013125:Spinal Neoplasms / Q000150:complications* / Q000473:pathology; D013717:Tenosynovitis / Q000209:etiology
vernacular_title: Conflits mécaniques sciatalgiques par synovialome bénin des articulations rachidiennes. A propos de quatre cas.