This event has been recorded by zimmer biomet under (b)(4).This medwatch is being filed to relay additional information.The following sections have been updated: b4, d4, d8, d9, g3, g6, h2, h3, h4, h6, h8, h10.Review of the most recent repair record determined the control bar was not in the correct position, calibration was out at all readings, and the width plate had a gouge.The 4in width plate, control bar, and bearings were replaced and resolved the reported issue.Review of the device history record identified no deviations or anomalies during manufacturing.Device is used for treatment.Review of complaint history identified additional similar complaints for the reported item and no additional complaints for the reported part and lot combination.Complaints are monitored through monthly complaint review in order to identify potential adverse trends.A definitive root cause cannot be determined.No corrective actions, preventive actions, or field actions resulted after investigation of this event.The event cannot be confirmed.
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