title: [Surgical treatment for pigmented villonodular synovitis].
abstract: OBJECTIVE
  Pigmented villonodular synovitis(PVS) is a synovial proliferative disorder that remains a diagnostic difficulty. In this retrospective study we evaluated the diagnostic procedures, clinical symptoms and surgical treatment of PVS.
  
  
  METHODS
  Six surgically treated cases of PVS were evaluated: five of the lesions were located in the knee joint and one in the hip joint. Diagnosis of PVS was confirmed by histological examination. Operation showed characteristic findings of a joint effusion, and synovial proliferation.
  
  
  RESULTS
  Five cases were treated with complete open total synovectomy, and one case received arthoplasty. The followed-up period averaged 3 years and six months (rangeing from 6 months to 6 years). Excellent and good function was seen in all and there was no recurrence.
  
  
  CONCLUSIONS
  PVS diagnosis is frequently delayed due to nonspecific symptoms. Proper treatment includes surgery: extension synovectomy for the diffuse form, and arthoplasty and total joint replacement for the severe bone involvement.
authors.affiliation: Department of Orthopedics, Third Xiangya Hospital, Central South University, Changsha 410013, China.
authors.forename: Di-hua
authors.initials: DH
authors.lastname: Zhang
authors.forename: Rui-sen
authors.initials: RS
authors.lastname: Zhan
authors.forename: Zhao-yue
authors.initials: ZY
authors.lastname: Zhang
authors.forename: Xiang-yu
authors.initials: XY
authors.lastname: Lei
mesh_terms: D000328:Adult; D000368:Aged; D005260:Female; D005500:Follow-Up Studies; D006801:Humans; D008297:Male; D008875:Middle Aged; D012189:Retrospective Studies; D000074402:Synovectomy; D013586:Synovitis, Pigmented Villonodular / Q000601:surgery*