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(b)(4).If information is obtained that was not available for the initial medwatch, a follow-up medwatch will be filed as appropriate.Investigation summary: the complaint device was received and inspected.The complaint can be confirmed.The device was received with the thumb screw which fixates the femoral guide to the guide frame broken off.It was reported that the thumb screw broke off when it was impacted with a mallet during the procedure.The thumb screw is not meant to be impacted with the mallet, therefore the root cause for the reported failure can be attributed to user mishandling.No lot numbers were supplied which precludes conducting a device history record (dhr) review.At this point, no corrective action is required and no further action is warranted.However, depuy synthes mitek will continue to track any related complaints within this device family as a means of monitoring the extent with which this complaint is observed in the field.Udi: (b)(4)-incomplete.The lot number is unknown.
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