Irish Journal of Medical Science (1971 -)

, Volume 188, Issue 3, pp 873–877 | Cite as

Primary total hip arthroplasty: registry data for fixation methods and bearing options at a minimum of 10 years

  • Gerard A. Sheridan
  • Raymond M. Kelly
  • Suzanne M. McDonnell
  • Fionnuala Walsh
  • John M. O’Byrne
  • Patrick J. Kenny
Original Article



Registry data for total hip arthroplasty (THA) has allowed optimal fixation methods, bearing surfaces and many other factors to be assessed. We describe 10-year THA outcomes from an Irish perspective using regional THA registry data for the first time.


We assess the main predictors of revision in primary total hip arthroplasty (THA) using regional registry data.


This was a prospective study of registry data from a National Orthopaedic Hospital for all THAs with 10-year follow-up data. All metal-on-metal THAs and resurfacings were excluded from the analysis. All-cause revision was the primary outcome. Univariate and multivariate analyses controlling for confounding variables were performed to assess predictor impact on primary and secondary outcomes.


A total of 1697 THAs were performed in 1553 patients. The three significant predictors for all-cause revision were fixation type (p < 0.01), surface bearing type (p < 0.01) and femoral head size (p < 0.05). The lowest 10-year all-cause revision rates were seen in cemented THRs at 1.2%. Ceramic-on-poly bearings had the lowest revision rate at 0.9%. The 22.225-mm head sizes had a significantly lower revision rate than other head sizes (p < 0.05). The causes for revision in order of decreasing frequency were infection (0.7%), dislocation (0.4%), periprosthetic fracture (0.2%) and aseptic loosening (0.1%). There were two re-revisions at 10 years in total.


Based on this registry and other emerging registry data, the shift towards uncemented THAs may not be fully supported. We also acknowledge that ceramic-on-polyethylene bearings afford the lowest revision rates in this registry.


Arthroplasty Cemented Ceramic Hip Revision 


Compliance with ethical standards

Conflict of interest

The authors declare that they have no conflict of interest.

Ethical approval

Full ethical approval was granted by the local research ethics committee.

For this type of study formal consent is not required.

This article does not contain any studies with animals performed by any of the authors.


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Copyright information

© Royal Academy of Medicine in Ireland 2018

Authors and Affiliations

  • Gerard A. Sheridan
    • 1
    • 2
  • Raymond M. Kelly
    • 1
  • Suzanne M. McDonnell
    • 1
  • Fionnuala Walsh
    • 1
  • John M. O’Byrne
    • 1
  • Patrick J. Kenny
    • 1
  1. 1.Cappagh National Orthopaedic HospitalFinglasIreland
  2. 2.LobinstownIreland

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