It was reported that left hip revision surgery was performed.During the revision, the acetabular cup, hemi head & modular sleeve were removed.The stem remained implanted.As of today, device return and additional information has been requested for this complaint but has not become available.In the absence of the actual devices, the production records were reviewed for the devices reportedly involved in this incident.All the released devices involved met manufacturing specifications at the time of production.The available medical documents were reviewed.The reported metallosis, pain, elevated cobalt and chromium levels, lysis, necrosis, and corrosion are consistent with findings associated with metal debris; however, the root cause of the reported clinical reactions cannot be confirmed.Further, it cannot be concluded that the reported clinical reactions were associated with a mal-performance of the implant.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 reopened.No preventative or corrective action has been initiated as a result of this investigation.Additional information: age or date of birth, brand name, concomitant medical products and device manufacture date.
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