Info was received via published literature.Evaluation summary: the pt has previous history of revisions for aseptic loosening, instability, and pelvis disassociation.Surgical notes were not provided.X-rays were not provided; it is unk whether the components were implanted with the correct fit and orientation as per the surgical technique.Attempts have been made to obtain additional info however no info has been received to date.Pt factors that may affect the performance of the components such as bone quality, height/weight, type of activity (low impact vs high impact), and relevant medical history are unk.Adherence to rehabilitation protocol is unk.A definitive root cause cannot be determined with the info provided.Evaluation codes: review of the device history records was not possible as the product and/or lot numbers required for retrieval were unavailable.It is not suspected that the product failed to meet specifications.The investigation could not verify or identify any evidence of product contribution to the reported problem.Based on the available info, the need for corrective action is not indicated.Should additional substantive info be received, the complaint will be reopened.
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