The Journal of Arthroplasty
Volume 25, Issue 2 , Pages 186-190, February 2010

Successful Performance of the Bi-Metric Uncemented Femoral Stem at a Minimum Follow-Up of 13 Years in Young Patients

  • Howard Davies, MRCS

      Affiliations

    • Department of Trauma and Orthopaedic Surgery, Ipswich Hospital, Ipswich, Suffolk, UK
    • Corresponding Author InformationReprint requests: Howard Davies, MRCS, Department of Trauma and Orthopaedic Surgery, Ipswich Hospital, Heath Road, Ipswich, IP4 5PD Suffolk, UK.
    • ,
  • Ben Ollivere, MRCS

      Affiliations

    • Department of Trauma and Orthopaedic Surgery, Ipswich Hospital, Ipswich, Suffolk, UK
    • ,
  • Joseph Motha, FRCS

      Affiliations

    • Department of Trauma and Orthopaedic Surgery, West Suffolk Hospital, Bury St Edmunds, Suffolk, UK
    • ,
  • Matthew Porteous, FRCS

      Affiliations

    • Department of Trauma and Orthopaedic Surgery, West Suffolk Hospital, Bury St Edmunds, Suffolk, UK
    • ,
  • Adrian August, FRCS

      Affiliations

    • Department of Trauma and Orthopaedic Surgery, West Suffolk Hospital, Bury St Edmunds, Suffolk, UK

Received 8 December 2007; accepted 26 November 2008. published online 05 February 2009.

Abstract 

We report the mean 15.2 year follow-up results for a porous coated version of the Bi-Metric (Biomet UK Ltd, Bridgend, UK) uncemented femoral stem in young patients. Sixty-four hips were implanted into 54 patients (mean age, 54.3 years) and followed up using the Hospital for Special Surgery score and regular radiographs. The first 13 patients had a TTAP-ST acetabulum (Biomet UK), the remainder receiving a Universal cup (Biomet UK). At 15.2 years, there were no stem failures or femoral revisions. The mean Hospital for Special Surgery score was 34.7 (20-40), and there was no evidence of stem loosening radiologically. There were 3 acetabular revisions and 3 liner changes at 10 years, with a further 5 cup revisions and 9 liner changes at final follow-up.

Keywords: uncemented, Bi-Metric, porous coated, TTAP-ST, universal

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 No benefits or funds were received in support of the study.

PII: S0883-5403(09)00013-8

doi:10.1016/j.arth.2008.11.105

The Journal of Arthroplasty
Volume 25, Issue 2 , Pages 186-190, February 2010

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