(b)(6).This report is for an unknown radial stem.Part and lot numbers are unknown; udi number is unknown.Date of implant reported only as (b)(6) 2016.Complainant part is not expected to be returned for manufacturer review/investigation.Concomitant device therapy date reported only as (b)(6) 2016.Without a lot number the device history records review could not be completed.The investigation could not be completed; no conclusion could be drawn, as no product was received.Device was used for treatment, not diagnosis.If information is obtained that was not available for the initial medwatch, a follow-up medwatch will be filed as appropriate.
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