Journal of Bone and Joint Surgery - British Volume, Vol 88-B, Issue 4,
443-448.
doi: 10.1302/0301-620X.88B4.17355
Copyright © 2006 by British Editorial Society of Bone and Joint Surgery
The effect of the diameter of metal-on-metal bearings on systemic exposure to cobalt and chromium
J. Daniel, FRCS, MS(Orth), Arthroplasty Fellow1;
H. Ziaee, BSc(Hons), Research Assistant1;
A. Salama, FRCS, MSc(Trauma), Specialist Registrar1;
C. Pradhan, FRCS, MCh(Orth), Staff Orthopaedic Surgeon1; and
D. J. W. McMinn, FRCS, Consultant Orthopaedic Surgeon1
1 The McMinn Centre, 25 Highfield Road, Edgbaston, Birmingham B15 3DP, UK.
Correspondence should be sent to Mr J. Daniel; e-mail: josephdaniel{at}mcminncentre.co.uk
The recent resurgence in the use of metal-on-metal bearings has led to fresh concerns over metal wear and elevated systemic levels of metal ions.
In order to establish if bearing diameter influences the release of metal ions, we compared the whole blood levels of cobalt and chromium (at one year) and the urinary cobalt and chromium output (at one to three and four to six years) following either a 50 mm or 54 mm Birmingham hip resurfacing or a 28 mm Metasul total hip replacement. The whole blood concentrations and daily output of cobalt and chromium in these time periods for both bearings were in the same range and without significant difference.
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eLetters:
Read all eLetters
- Is component diameter a factor influencing metal ion level?
- Pascal A. Vendittoli, et al.
- J Bone Joint Surg Br Online, 16 Jun 2006
[Full text]
- Authors' reply
- Joseph Daniel FRCS, et al.
- J Bone Joint Surg Br Online, 14 Sep 2006
[Full text]
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