Conclusion and justification status for mdr: the reported incident could not be confirmed as no products were received for investigation.However, multiple complaints have been received for stripped drivers, fractured hex drivers, and for the hex drivers cold welding to the screws.Originally, data was reviewed under the root cause investigation (b)(4).It was determined as a result of the investigation to conduct a preliminary risk assessment.(b)(4) was conducted in april 2015 and determined that there had been no increase in patient harm and that the severity and occurrence of the various failure modes resulted in broadly acceptable risks.Thus, no action was to be taken regarding cold-welding or stripping failures on codes 227449000, 227463000, 227447000, 227448000.Depuy considers the investigation closed at this time.Should additional information be received, the information will be reviewed and the investigation will be re-opened as necessary.
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