title: [Pigmented villonodular synovitis of the knee joint--long-term follow-up and therapeutic concept].
abstract: Because of pigmented villonodular synovitis (PVS) 17 of 14,500 knee operations were accomplished at our institute between 1975 and 1993. Diffuse PVS (DPVS) was observed in 7 patients, local PVS (LPVS) in 9 patients; in 1 case LPVS was diagnosed on both joints. 15 knees could be examined 4.8 years after first surgery. 3 recurrences (42.9%) were found in the group of DPVS. In the group of LPVS no recurrent tumor growing was observed. It is demonstrated that partial arthroscopic synovectomy is a sufficient therapy in LPVS. The recurrence rate of DPVS ranges from 8 to 50%, the mean recurrence rate described in literature is 31.3%. Neither arthroscopic nor open synovectomy lead to a complete healing of DPVS. Recurrent arthroscopic synovectomy and regular clinical examination using sonography and particular MRI are the best therapeutical concepts in DPVS.
authors.affiliation: Orthopädische Universitätsklinik, König-Ludwig-Haus, Würzburg.
authors.forename: C P
authors.initials: CP
authors.lastname: Rader
authors.forename: T
authors.initials: T
authors.lastname: Barthel
authors.forename: C
authors.initials: C
authors.lastname: Hendrich
authors.forename: J
authors.initials: J
authors.lastname: Eulert
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D001182:Arthroscopy; D005260:Female; D005500:Follow-Up Studies; D006801:Humans; D007719:Knee Joint / Q000473:pathology / Q000601:surgery*; D008297:Male; D008875:Middle Aged; D011183:Postoperative Complications / Q000473:pathology / Q000601:surgery*; D012008:Recurrence; D012086:Reoperation; D000074402:Synovectomy; D013583:Synovial Membrane / Q000473:pathology; D013586:Synovitis, Pigmented Villonodular / Q000473:pathology / Q000601:surgery*
vernacular_title: Die pigmentierte villonoduläre Synovialitis am Kniegelenk--Langzeitergebnisse und Therapiekonzept.