An irish legal claim was received, stating that a patient was requesting revision surgery due to elevated ion levels.As of today, the implanted devices, all of which were used in treatment, and additional information have been requested for this complaint but have not become available.A review of the complaint history for the cup, head & sleeve was performed using batch numbers in search of similar recurring reports for the products during their lifetimes.No other similar complaints were identified.In the absence of the actual devices, the production records were reviewed for the known devices reportedly involved in this incident.Review of manufacturing records did not reveal any waivers, concessions, manufacturing or material abnormalities that could have contributed to this issue.Review of the product ifu found adequate warnings and precautions in relation to the alleged failure modes.A risk management review was performed.No additional risks were identified as a result of the reported event.The available medical documents were reviewed.The reported findings of elevated metal ion levels may be consistent with findings associated with metal debris.The root cause of the reported symptoms noted in this legal claim cannot be confirmed, as the x-ray reports revealed the implant remained in satisfactory position and alignment with no evidence of loosening, and the surgeon¿s statement that he would be very reluctant to offer him revision surgery on the basis of the current findings.It cannot be concluded that the reported reactions/events were associated with a malperformance of the implant.It is unknown to date whether a revision surgery has taken place.Without return of the actual devices or further information we cannot further investigate or confirm the details supplied in this complaint, and our investigation remains inconclusive.If the products or additional information become available in the future, this case will be re-opened.No preventative or corrective action has been initiated as a result of this investigation.
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