UK alert prompts new scrutiny of MOM hips

By Terry Stanton

In April, the United Kingdom’s Medicines and Healthcare Products Regulatory Agency (MHRA) issued a Medical Device Alert on metal-on-metal (MOM) hip devices. The alert does not impose any restrictions on MOM device use, but notes reports of revisions of MOM total hip replacement or resurfacing procedures involving soft-tissue reactions or pseudotumors.

Although patients “are thought to be at a low risk of developing serious problems,” the alert states that progressive reactions to wear debris of MOM articulations, which can cause soft-tissue necrosis and adversely affect the results of revision surgery, may develop in a small number.

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