Anthony Viste1,2,3,4, Romain Desmarchelier5,6,7,8, Michel-Henri Fessy5,6,7,8. 1. 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. 2. IFSTTAR, UMRT_9406, Laboratoire de Biomécanique et Mécanique des Chocs, 69675, Bron, France. anthony.viste@chu-lyon.fr. 3. Université Claude Bernard Lyon 1, 69100, Villeurbanne, France. anthony.viste@chu-lyon.fr. 4. Université de Lyon, 69622, Lyon, France. anthony.viste@chu-lyon.fr. 5. Hospices Civils de Lyon, Centre Hospitalier Lyon Sud, Service de Chirurgie Orthopédique et Traumatologique, 165 Chemin Grand Revoyet, 69495, Pierre Bénite Cedex, France. 6. IFSTTAR, UMRT_9406, Laboratoire de Biomécanique et Mécanique des Chocs, 69675, Bron, France. 7. Université Claude Bernard Lyon 1, 69100, Villeurbanne, France. 8. Université de Lyon, 69622, Lyon, France.
Abstract
AIM: 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). METHODS: 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). RESULTS: 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). CONCLUSION: This study provided evidence of the advantages of dual mobility cups in all revision THA indications.
AIM: 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). METHODS: 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). RESULTS: 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). CONCLUSION: This study provided evidence of the advantages of dual mobility cups in all revision THA indications.
Entities:
Keywords:
Aseptic loosening; Dislocation; Dual mobility; Revision; Total hip arthroplasty
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