It was reported patient underwent a left partial knee arthroplasty on (b)(6), 2014.Subsequently, a revision procedure was performed on (b)(6), 2014 due to malpositioning.The tibial bearing and tibial tray were removed and replaced.
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Current information is insufficient to permit a conclusion as to the cause of the event.Review of device history records show that lot released with no recorded anomaly.There are warnings in the package insert that state that this type of event can occur: under warnings, number 1 states, "improper selection, placement, positioning, alignment and fixation of the implant components may result in unusual stress conditions which may lead to subsequent reduction in the service life of the prosthetic components.".
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