title: Profile of hip arthroplasty patients in a teaching hospital.
abstract: OBJECTIVE
  to characterize the epidemiological profile of patients undergoing hip replacement, primary or revisional.
  
  
  METHODS
  we conducted a retrospective, descriptive study, including hip arthroplasties performed from January 2009 to June 2012 in a Belo Horizonte teaching hospital, Minas Gerais State - MG, Brazil. Data were analyzed using descriptive statistics.
  
  
  RESULTS
  orthopedic procedures represented 45% of the operations at the hospital in the period, 1.4% hip arthroplasties. There were 125 hip replacements, 85 total, 27 partial and 13 reviews. Among the patients, 40% were male and 60% were female. Age ranged between 20 and 102 years, mean and median of 73 and 76 years, respectively. The most frequent diagnosis (82%) was femoral neck fracture by low-energy trauma caused by falling form standing position. In 13 revision operations, 12 required removal of the prosthesis. The infectious complication led to revision in 54% of the time, followed by dislocation (15%), peri-prosthetic fracture (15%) and aseptic loosening (15%). The infection etiologic agent was identified in 43% of occasions. The average length of the prosthesis to a revision operation was eight months.
  
  
  CONCLUSIONS
  patients undergoing hip arthroplasty are elderly, with femoral neck fracture caused by falling form standing position, affecting more women. The incidence of hip prosthesis loosening was 10%. The main cause of the infection was loosening. The incidence of revisional hip arthroplasty was 10% and the incidence of hospital mortality in patients undergoing hip arthroplasty was 7.2%.
authors.affiliation: Nursing School, Universidade Federal de Minas Gerais, Belo Horizonte, Minas Gerais, Brasil.
authors.forename: Vania Regina
authors.initials: VR
authors.lastname: Goveia
authors.affiliation: Nursing School, Universidade Federal de Minas Gerais, Belo Horizonte, Minas Gerais, Brasil.
authors.forename: Isabel Yovana Quispe
authors.initials: IY
authors.lastname: Mendoza
authors.affiliation: Institute of Engineering and Technology, Centro Universitário de Belo Horizonte, Belo Horizonte, Minas Gerais, Brasil.
authors.forename: Bráulio Roberto Gonçalves Marinho
authors.initials: BR
authors.lastname: Couto
authors.affiliation: Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais, Belo Horizonte, Minas Gerais, Brasil.
authors.forename: Jose Antonio Guimarães
authors.initials: JA
authors.lastname: Ferreira
authors.affiliation: Hospital Risoleta Tolentino Neves, Universidade Federal de Minas Gerais, Belo Horizonte, Minas Gerais, Brasil.
authors.forename: Edson Barreto
authors.initials: EB
authors.lastname: Paiva
authors.affiliation: Nursing School, Universidade Federal de Minas Gerais, Belo Horizonte, Minas Gerais, Brasil.
authors.forename: Gilberto Lima
authors.initials: GL
authors.lastname: Guimarães
authors.affiliation: Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais, Belo Horizonte, Minas Gerais, Brasil.
authors.forename: Maria Aparecida Resende
authors.initials: MA
authors.lastname: Stoianoff
mesh_terms: D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D001178:Arthroplasty / Q000706:statistics & numerical data*; D019644:Arthroplasty, Replacement, Hip / Q000706:statistics & numerical data; D005260:Female; D006621:Hip Joint / Q000601:surgery*; D006784:Hospitals, Teaching; D006801:Humans; D007592:Joint Diseases / Q000601:surgery*; D008297:Male; D008875:Middle Aged; D012189:Retrospective Studies