title: Long-term results of knee synovectomy in pigmented villonodular synovitis.
abstract: 1. Pigmented villonodular synovitis (PVS) commonly affects the knee as a monoarticular proliferative process. The etiology is not understood. 2. Partial synovectomy for localized PVS and wide synovectomy for diffuse PVS institute a favorable result, despite a rather high rate of recurrence at long-term follow-up. 3. Cases that involve bony erosion have a low incidence of recurrence but present an unsatisfactory prognosis even after curettage and wide synovectomy (postoperative progress of osteoarthritic changes).
authors.forename: T
authors.initials: T
authors.lastname: Matsubara
authors.forename: Y
authors.initials: Y
authors.lastname: Toyoda
authors.forename: K
authors.initials: K
authors.lastname: Hirohata
mesh_terms: D000328:Adult; D005260:Female; D005500:Follow-Up Studies; D006801:Humans; D007719:Knee Joint / Q000000981:diagnostic imaging / Q000473:pathology / Q000503:physiopathology; D008297:Male; D011300:Preoperative Care; D011859:Radiography; D012008:Recurrence; D000074402:Synovectomy; D013583:Synovial Membrane / Q000473:pathology / Q000648:ultrastructure; D013586:Synovitis, Pigmented Villonodular / Q000503:physiopathology / Q000601:surgery*