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Metal hip manufacturing issues

A recent article in the press highlighted concerns about the role of manufacturing issues in the failure of the Pinnacle metal on metal hip replacement. The work was done by David Langton and his colleagues in Newcastle. They looked at variability in the clearance of the bearing and found that this was lower than that specified by the manufacturer. Clearance affects the ability of the bearing to remain lubricated under load and when it moves. If the lubrication is insufficient, then the bearing becomes stiff and wear is increased. As we have seen with other metal bearings, this can cause adverse reactions within the joint.

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  • Hip Replacement

    Total Hip Replacement or THR is one of the most successful hip operations in orthopaedic surgery. Tens of thousands of hip replacements are performed each year…

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  • Hip Resurfacing

    Hip resurfacing was developed to treat painful arthritis in younger and active patients. It’s now an established technique, and the results are usually excellent in carefully selected patients…

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  • Revision Hip Surgery

    Hip replacement surgery can be life changing for those dealing with pain on a daily basis. Unfortunately, even a replacement hip can wear out…

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  • Hip Replacement

    Total Hip Replacement or THR is one of the most successful hip operations in orthopaedic surgery. Thousands of hip replacements are performed each year…

    Click here to find out more
  • Hip Resurfacing

    Hip resurfacing was developed to treat painful arthritis in younger and active patients. It’s a relatively new technique, but the results are usually excellent…

    Click here to find out more
  • Revision Hip Surgery

    Hip replacement surgery can be life changing for those dealing with pain on a daily basis. Unfortunately, even a replacement hip can wear out…

    Click here to find out more