(b)(4).Medical product: biomet splined knee stem, cat#: 141656 lot#: 645660.Vanguard ssk interlok femoral, cat#: 183326 lot#: 181120.Customer has indicated that the product will not be returned to zimmer biomet for investigation, as product location is unknown.The investigation is in process.Once the investigation has been completed, a follow-up mdr will be submitted.If any further information is found which would change or alter any conclusions or information, a supplemental will be filed accordingly.Zimmer biomet will continue to monitor for trends.Multiple mdr reports were filed for this event, please see associated reports: 0001825034-2017-08332, 0001825034-2017-08334, 0001825034-2017-08335.Product location unknown.
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