The end for metalonmetal hip implants?

Posted 06/03/2012

Surgeons have called for an end to metal-on-metal hip replacements, suggesting there is no evidence that the potential benefits outweigh the risks associated with the implants. This opinion is supported by The British Hip Society despite assurances from regulators that the hip implants are safe.Reports of problems surrounding the use of large metal-on-metal hip replacements have been rife recently, in particular concerning the risk of metal debris entering the blood due to the friction caused by the two metal joints rubbing together. New guidance has been published and extra precautions are being made, however, the regulators insist the implants can still be used.Dr Susanne Ludgate, clinical director of the MHRA, has commented that the implants are justified in some instances, noting that the MHRA “recognise that there is emerging evidence of increased revision rates associated with large head metal-on-metal hip replacements. But the clinical evidence is mixed and this does not support their removal from the market. Metal-on-metal resurfacing hip implants enable young patients to lead pain-free, independent lives. The MHRA, in combination with our expert advisory group, is continuing to monitor closely all the latest evidence about these devices. We will take quick action if we need to and, if patients have any questions, they should speak to their orthopaedic surgeon or doctor.”Samantha Collins, medical injury solicitor at Ashtons Legal comments “The recent reports surrounding hip implants are extremely concerning. Latest figures published by the National Joint Registry for England and Wales suggest around 1,400 patients underwent large head metal-on-metal hip replacements in 2010, with a rough total of 49,000 patients in the UK having undergone this type of hip replacement in the past. Given the still very high numbers of people receiving these implants, surgeons’ concerns should be heard and investigations should be brought to establish the root of these issues and the damage that could be caused. However, despite the hip implants remaining in use, at least it seems as though the MHRA are on top of these issues, putting in place extra precautions to monitor patients with large head metal-on-metal hip replacements and appearing ready to “take quick action” if necessary.