title: Dual mobility cups in revision total hip arthroplasty.
abstract: The purpose of our study was to evaluate the dislocation and aseptic loosening rates of a dual mobility construct in revision total hip arthroplasty (THA).
  
  
  
  Three hundred thirty-four revision THAs performed between 2006 and 2011, using a dual mobility cup, were included in this retrospective study. The indications for revision were aseptic loosening (70%), infection (21%) and recurrent instability (9%). The minimum follow-up was five years (mean 7 ± 2 years, maximum 10 years).
  
  
  
  At the latest follow-up, 11 episodes of dislocation occurred, seven of which were recurrent (1.3% for aseptic loosening, 2.8% for infection and 3.4% for recurrent dislocation). Ten cases of aseptic loosening occurred; in seven of them, a cemented cup into a reinforcement ring had been used (OR = 14, p = 0.0001).
  
  
  
  This study provided evidence of the advantages of dual mobility cups in all revision THA indications.
authors.affiliation: Hospices Civils de Lyon, Centre Hospitalier Lyon Sud, Service de Chirurgie Orthopédique et Traumatologique, 165 Chemin Grand Revoyet, 69495, Pierre Bénite Cedex, France. anthony.viste@chu-lyon.fr.|IFSTTAR, UMRT_9406, Laboratoire de Biomécanique et Mécanique des Chocs, 69675, Bron, France. anthony.viste@chu-lyon.fr.|Université Claude Bernard Lyon 1, 69100, Villeurbanne, France. anthony.viste@chu-lyon.fr.|Université de Lyon, 69622, Lyon, France. anthony.viste@chu-lyon.fr.
authors.forename: Anthony
authors.initials: A
authors.lastname: Viste
authors.affiliation: Hospices Civils de Lyon, Centre Hospitalier Lyon Sud, Service de Chirurgie Orthopédique et Traumatologique, 165 Chemin Grand Revoyet, 69495, Pierre Bénite Cedex, France.|IFSTTAR, UMRT_9406, Laboratoire de Biomécanique et Mécanique des Chocs, 69675, Bron, France.|Université Claude Bernard Lyon 1, 69100, Villeurbanne, France.|Université de Lyon, 69622, Lyon, France.
authors.forename: Romain
authors.initials: R
authors.lastname: Desmarchelier
authors.affiliation: Hospices Civils de Lyon, Centre Hospitalier Lyon Sud, Service de Chirurgie Orthopédique et Traumatologique, 165 Chemin Grand Revoyet, 69495, Pierre Bénite Cedex, France.|IFSTTAR, UMRT_9406, Laboratoire de Biomécanique et Mécanique des Chocs, 69675, Bron, France.|Université Claude Bernard Lyon 1, 69100, Villeurbanne, France.|Université de Lyon, 69622, Lyon, France.
authors.forename: Michel-Henri
authors.initials: MH
authors.lastname: Fessy
mesh_terms: D000368:Aged; D019644:Arthroplasty, Replacement, Hip / Q000009:adverse effects*; D005260:Female; D005500:Follow-Up Studies; D006617:Hip Dislocation / Q000601:surgery*; D006622:Hip Prosthesis / Q000009:adverse effects*; D006801:Humans; D008297:Male; D008875:Middle Aged; D011474:Prosthesis Design / Q000009:adverse effects; D011475:Prosthesis Failure; D012086:Reoperation / Q000009:adverse effects* / Q000379:methods; D012189:Retrospective Studies; D013997:Time Factors
keywords: Aseptic loosening; Dislocation; Dual mobility; Revision; Total hip arthroplasty