The MHRA has received reports of revisions of MoM hip replacements involving soft tissue reactions. These reactions may be associated with unexplained hip pain.
The majority of patients implanted with MoM hip replacements have well functioning hips and are thought to be at a low risk of developing serious problems.
A small number of patients implanted with these hips may, however, develop progressive soft tissue reactions to the wear debris associated with MoM articulations. The debris can cause soft tissue necrosis and adversely affect the results of revision surgery. Early revision of poorly performing MoM hip replacements should give a better revision outcome.
Following extensive consultation with orthopaedic experts and using information from the National Joint Registry for England and Wales, the MHRA is issuing this interim advice to healthcare professionals involved in the management of patients implanted with MoM hip replacements.
The MHRA is continuing to monitor the situation in consultation with orthopaedic experts and may issue further advice.
