Across the United States, including Tennessee, there are many recipients of a Stryker Rejuvenate or ABGII hip implant who have suffered serious health issues following implantation. These two Stryker models gained FDA approval in 2008 and 2009, yet shortly thereafter the FDA began receiving adverse reports from consumers. By April, 2012 enough problems had been reported that Stryker issued an urgent field safety citing the two hip implants were more likely to suffer fretting and corrosion which in turn could lead to metal toxicity or hip implant failure. Shortly thereafter the recall was issued. It is believed there were approximately 20,000 of the ABGII and Rejuvenate implants sold prior to the recall and that the majority of those were implanted into patients. Although the United States does not have a comprehensive database of medical devices, each doctor and hospital does keep records of which device was implanted into each individual patient.