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Journal of Bone and Joint Surgery - British Volume, Vol 91-B, Issue 6, 720-724.
doi: 10.1302/0301-620X.91B6.21417  
Copyright © 2009 by British Editorial Society of Bone and Joint Surgery
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The continued value of clinical and radiological surveillance

THE CHARNLEY ELITE PLUS HIP REPLACEMENT SYSTEM AT 12 YEARS

B. Ollivere, MRCS, Specialist Registrar1; C. Darrah, RGN, MSc, Nurse Research Manager1; R. C. Brankin, MRCS, Clinical Fellow1; S. T. Donnell, FRCS(Orth), MD, Consultant Orthopaedic Surgeon1; and N. P. Walton, FRCS(Orth), Consultant Orthopaedic Surgeon1

1 Institute of Orthopaedics Norfolk & Norwich University Hospital, Colney Lane, Colney, Norwich NR4 7UY, UK.

Correspondence should be sent to Dr B. Ollivere; e-mail: ben{at}ollivere.co.uk

We report the follow-up at 12 years of the use of the Elite Plus total hip replacement (THR). We have previously reported the results at a mean of 6.4 years. Of the 217 patients (234 THRs), 83 had died and nine had been lost to follow-up. The patients were reviewed radiologically and clinically using the Oxford hip score.

Of the 234 THRs, 19 (8.1%) had required a revision by the final follow-up in all but one for aseptic loosening. Survivorship analysis for revision showed a survival of 93.9% (95% confidence interval (CI) 89.2 to 96.5) at ten years, and of 88.0% (95% CI 81.8 to 92.3) at 12 years. At the final follow-up survival analysis showed that 37% (95% CI 37.3 to 44.7) of the prostheses had either failed radiologically or had been revised. Patients with a radiologically loose femoral component had a significantly poorer Oxford hip score than those with a well-fixed component (p = 0.03). Radiological loosening at 6.4 years was predictive of failure at 12 years.

Medium-term radiographs and clinical scores should be included in the surveillance of THR to give an early indication of the performance of specific implants.






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Hip, Knee, Trauma, Upper limb, Foot & Ankle, Paediatrics, Oncology, Spine, Arthroplasty, General