title: Evaluation of the fixation of the trabecular metal wedge in patients undergoing revision of total hip arthroplasty.
abstract: OBJECTIVE
  this study aimed to evaluate the fixation of the trabecular metal wedge in patients undergoing revision of total hip arthroplasty.
  
  
  METHODS
  twenty-three cases with minimum grading of Paprosky II-B that were operated between July 2008 and February 2013 were evaluated. These cases were evaluated based on radiographs before the operation, immediately after the operation and later on after the operation. Loss of fixation was defined as a change in the abduction angle of the component greater than 10° or any mobilization greater than 6 mm.
  
  
  RESULTS
  it was found that there was 100% fixation of the acetabula after a mean of 29.5 months. One case underwent removal of the implanted components due to infection.
  
  
  CONCLUSIONS
  there is still no consensus regarding the best option for reconstructing hips with bone loss. However, revision using a trabecular metal wedge has presented excellent short- and medium-term results. This qualifies it as an important tool for achieving a fixed and stable acetabular component.
authors.affiliation: Instituto Nacional de Traumatologia e Ortopedia (Into), Rio de Janeiro, RJ, Brazil.
authors.forename: Victor Magalhães
authors.initials: VM
authors.lastname: Callado
authors.affiliation: Instituto Nacional de Traumatologia e Ortopedia (Into), Rio de Janeiro, RJ, Brazil.
authors.forename: Osamu
authors.initials: O
authors.lastname: de Sandes Kimura
authors.affiliation: Instituto Nacional de Traumatologia e Ortopedia (Into), Rio de Janeiro, RJ, Brazil.
authors.forename: Diogo
authors.initials: D
authors.lastname: de Carvalho Leal
authors.affiliation: Instituto Nacional de Traumatologia e Ortopedia (Into), Rio de Janeiro, RJ, Brazil.
authors.forename: Pedro Guilme
authors.initials: PG
authors.lastname: Teixeira de Sousa Filho
authors.affiliation: Instituto Nacional de Traumatologia e Ortopedia (Into), Rio de Janeiro, RJ, Brazil.
authors.forename: Marco Bernardo
authors.initials: MB
authors.lastname: Cury Fernandes
authors.affiliation: Instituto Nacional de Traumatologia e Ortopedia (Into), Rio de Janeiro, RJ, Brazil.
authors.forename: Emílio Henrique
authors.initials: EH
authors.lastname: Carvalho de Almendra Freitas
keywords: Acetabular bone defects; Hip arthroplasty; Prostheses and implants; Trabecular metal augment