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The associated complaint devices were not returned.A clinical evaluation was conducted and details regarding the patient¿s weight-bearing status, bone quality, and other additional clinical relevant information have not been provided.The root cause of the reported migrated screw cannot be definitively concluded.One undated x-ray was provided confirming that the compression screw moved from its implanted position and has cut through the top of the femoral head.There is reported that there will be a future revision.A review of complaint history on the listed parts revealed no prior complaints for the listed batches with the same failure mode.A review of the manufacturing records did not reveal a manufacturing abnormality that could have caused or contributed to the reported incident.Without the actual product involved and/or device information, our investigation cannot proceed.If the device or new information is received in the future, this complaint can be re-opened.No further actions are being taken at this time.We consider this investigation closed.
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