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Early aseptic loosening of cementless monoblock acetabular components.

Authors
  • Miettinen, Simo S A1
  • Mäkinen, Tatu J2
  • Laaksonen, Inari3
  • Mäkelä, Keijo3
  • Huhtala, Heini4
  • Kettunen, Jukka1
  • Remes, Ville5, 6
  • 1 Department of Orthopaedics, Traumatology and Hand Surgery, Kuopio University Hospital, Kuopio, Finland. , (Finland)
  • 2 Department of Orthopaedics and Traumatology, Helsinki University Hospital and University of Helsinki, Sairaalakatu 1, 01400, Vantaa, Finland. [email protected] , (Finland)
  • 3 Department of Orthopaedics and Traumatology, Turku University Central Hospital, Turku, Finland. , (Finland)
  • 4 School of Health Sciences, University of Tampere, Tampere, Finland. , (Finland)
  • 5 Department of Orthopaedics and Traumatology, Helsinki University Hospital and University of Helsinki, Sairaalakatu 1, 01400, Vantaa, Finland. , (Finland)
  • 6 Pihlajalinna Oy, Helsinki, Finland. , (Finland)
Type
Published Article
Journal
International Orthopaedics
Publisher
Springer-Verlag
Publication Date
Apr 01, 2017
Volume
41
Issue
4
Pages
715–722
Identifiers
DOI: 10.1007/s00264-016-3254-8
PMID: 27506571
Source
Medline
Keywords
License
Unknown

Abstract

Acetabular morphology (Dorr type A and C) and component positioning vertically and less anteverted were more common in patients with early aseptic loosening of cementless acetabular components. Suboptimal cup position most likely reflects challenges to obtain sufficient stability during surgery. We hypothesize that errors in surgical technique are the main reason for early loosening of monoblock acetabular components.

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