title: GCT: What happened after 10 years of curettage and cement? Retrospective study of 46 cases.
abstract: OBJECTIVE
  To compare the functional outcome of patients with and without arthrosis, and to determine whether the development of arthrosis is related to the distance of the tumor from the subchondral bone.
  
  
  METHODS
  Forty six patients treated for Giant-cell tumor (GCT) between 1975 and 1999 met inclusion criteria. GCT was diagnosed by percutaneous biopsy and confirmed after resection, in all cases. Campanacci's and Kellgren's classification, the distance of the cement to the articular surface and MSTS score were obtained throughout the sample.
  
  
  RESULTS
  The distance of the cement to the subchondral bone was associated with greater risk of developing arthrosis, but there was no difference in MSTS scores between patients with or without arthrosis.
  
  
  CONCLUSIONS
  We found that the distance from the cement to the subchondral bone has a prognostic value regarding future arthrosis, but it does not impact on the functional outcome. Level of Evidence IV, Therapeutic Study.
authors.affiliation: Universidade de São Paulo, Faculdade de Medicina, Hospital das Clínicas, São Paulo, SP, Brasil, Institute of Orthopedics and Traumatology of Hospital das Clínicas da Faculdade de Medicina da Universidade de São Paulo. São Paulo, SP, Brasil.
authors.forename: André Mathias
authors.initials: AM
authors.lastname: Baptista
authors.affiliation: Universidade de São Paulo, Faculdade de Medicina, Hospital das Clínicas, São Paulo, SP, Brasil, Institute of Orthopedics and Traumatology of Hospital das Clínicas da Faculdade de Medicina da Universidade de São Paulo. São Paulo, SP, Brasil.
authors.forename: André Ferrari de França
authors.initials: AF
authors.lastname: Camargo
authors.affiliation: Universidade de São Paulo, Faculdade de Medicina, Hospital das Clínicas, São Paulo, SP, Brasil, Institute of Orthopedics and Traumatology of Hospital das Clínicas da Faculdade de Medicina da Universidade de São Paulo. São Paulo, SP, Brasil.
authors.forename: Marcelo Tadeu
authors.initials: MT
authors.lastname: Caiero
authors.affiliation: Universidade de São Paulo, Faculdade de Medicina, Hospital das Clínicas, São Paulo, SP, Brasil, Institute of Orthopedics and Traumatology of Hospital das Clínicas da Faculdade de Medicina da Universidade de São Paulo. São Paulo, SP, Brasil.
authors.forename: Daniel César Seguel
authors.initials: DC
authors.lastname: Rebolledo
authors.affiliation: Universidade de São Paulo, Faculdade de Medicina, Hospital das Clínicas, São Paulo, SP, Brasil, Institute of Orthopedics and Traumatology of Hospital das Clínicas da Faculdade de Medicina da Universidade de São Paulo. São Paulo, SP, Brasil.
authors.forename: Luiz Filipe Marques
authors.initials: LF
authors.lastname: Correia
authors.affiliation: Universidade de São Paulo, Faculdade de Medicina, Hospital das Clínicas, São Paulo, SP, Brasil, Institute of Orthopedics and Traumatology of Hospital das Clínicas da Faculdade de Medicina da Universidade de São Paulo. São Paulo, SP, Brasil.
authors.forename: Olavo Pires
authors.initials: OP
authors.lastname: de Camargo
keywords: Bone neoplasms; Curettage; Giant cell tumors; Outcome assessment (health care); Process assessment (health care)