title: CIRCUMFERENTIAL PROXIMAL FEMORAL ALLOGRAFTS IN TOTAL HIP ARTHROPLASTY REVISION SURGERY.
abstract: OBJECTIVE
  To evaluate the clinical and radiographic results from patients who underwent femoral reconstruction secondary to loosening of total hip arthroplasty, using circumferential proximal femoral allografts and cemented implants.
  
  
  METHODS
  A retrospective study was conducted on 32 patients (33 hips) who underwent femoral reconstruction secondary to loosening of total hip arthroplasty, using circumferential proximal femoral allografts and cemented implants. Among these patients, 28 (29 hips) fulfilled all the requirements for this study. The mean follow-up was five years and two months. The clinical evaluation was done in accordance with the Harris Hip Score. Radiographically, the patients were assessed regarding reabsorption and consolidation of the allograft, migration of the greater trochanter, stability of the femoral component and heterotypic calcification.
  
  
  RESULTS
  The average preoperative Harris Hip Score was 32 points. At the last postoperative follow-up, the average score was 82 points. Allograft resorption of some degree was seen in nine hips (31%). Regarding consolidation, 24 cases (82.8%) showed full consolidation, three (10.3%) showed partial consolidation and two (6.9%) showed pseudarthrosis. All femoral components were stable. According to the criteria established, 27 cases (93.1%) were considered to be successful reconstructions after a mean follow-up of five years and two months.
  
  
  CONCLUSIONS
  From the results obtained, it was concluded that use of circumferential proximal femoral allografts in selected cases of femoral reconstruction secondary to loosening of arthroplasty presented a high survival rate from the reconstruction over an average follow-up of five years and two months.
authors.affiliation: Preceptor of the Medical Residency Program in Orthopedics and Traumatology, Hospital Ortopédico de Passo Fundo (HOPF); Member, HOPF Hip Surgery and Reconstruction Group, Passo Fundo, RS, Brazil.
authors.forename: Bruno Dutra
authors.initials: BD
authors.lastname: Roos
authors.affiliation: Head, HOPF Medical Residency Program in Orthopedics and Traumatology; Member, HOPF Hip Surgery and Reconstruction Group, Passo Fundo, RS, Brazil.
authors.forename: Milton Valdomiro
authors.initials: MV
authors.lastname: Roos
authors.affiliation: Preceptor of the Medical Residency Program in Orthopedics and Traumatology, Hospital Ortopédico de Passo Fundo (HOPF); Member, HOPF Hip Surgery and Reconstruction Group, Passo Fundo, RS, Brazil.
authors.forename: Antero Camisa
authors.initials: AC
authors.lastname: Júnior
authors.affiliation: Third-Year Resident, HOPF Orthopedics and Traumatology Training Program, Passo Fundo, RS, Brazil.
authors.forename: Henrique Bonotto
authors.initials: HB
authors.lastname: Lampert
authors.affiliation: Third-Year Resident, HOPF Orthopedics and Traumatology Training Program, Passo Fundo, RS, Brazil.
authors.forename: Matheus Luis
authors.initials: ML
authors.lastname: da Silva
keywords: Arthroplasty, Replacement, Hip/methods; Femur/surgery; Homologous Transplant/adverse effects; Prosthesis Failure