FDA orders postmarket studies on MOM hip implants

By Jeanie Kennedy and Katherine Sale

On May 9, 2011, the U.S. Food and Drug Administration (FDA) issued orders for postmarket surveillance studies from several orthopaedic device manufacturers of metal-on-metal (MOM) total hip arthroplasty (THA) implant systems. The agency is seeking information on metal ion concentrations and their effects on long-term outcomes for THA patients.

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