H3, h6: the reported device, used for treatment, was not returned to the designated complaint unit for independent evaluation, thus visual inspection and functional testing could not be performed.A relationship, if any, between the subject device and the reported event could not be determined.There was no part/serial/lot number provided for dhr review so it could not be concluded if the device met the manufacturing specifications.A complaint history review identified similar events.The root cause could not be determined for this issue.Factors that could have contributed to the reported event may most likely be related to wear and tear from repeated uses.The size c poly trials are the most commonly used as they fit into the size 5 and 6 tibial base plates.The 8mm thickness is the most common thickness as it leaves the most room for the surgeon to size up.Therefore, they are more likely to wear than any other types poly trials.
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