Updated fields: d4, d9, g3, g6, h2, h3, h4, h6, h10.The mayfield radiolucent skull pins (a2020) were returned for evaluation: device history record (dhr) - the dhr was reviewed and shows no abnormalities related to the reported failure.Failure analysis - three a2020 radiolucent skull pins were returned and the investigation show that two of the returned pins were undamaged, and one pin had the tip crushed and was broken.Inspection of the plastic pin base found no incident marks to suggest the pin was seated improperly.However, if the a2020 skull pins are dropped or mishandled, it can compromise the integrity of the pin.Root cause - the complaint is confirmed via inspection of the unit.Probable root cause is damage from mishandling or excessive force applied to the skull pin.No further investigation is required based on the acceptability of risk and no adverse trends identified.This will be monitored and trended going forward.At present, we consider this complaint to be closed.
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