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Reported event: an event regarding altr , fretting and abnormal ion levels involving a metal head was reported.The event was confirmed through clinician review of the provided medial records.Method & results: product evaluation and results: visual inspection, dimensional, functional inspection, and material analysis were not performed as the item was not returned.Clinician review: a review of the provided medical records by a clinical consultant indicated: revision surgery for fluid collection around left tha and pseudo tumor with mildly elevated co level of 1.9 (0-0.9), and a finding fretting.A revision surgery did occur for a "pseudo tumor".There was a report of a metal reaction and trunnionosis as well as a claim that the lfit head was recalled.That said, there was prior replacement of the head which could have caused changes on the trunnion, there was no metal staining of the tissues; and the co levels were relatively low.The patient had ongoing pain in the hip that was not clearly related to the "pseudo-tumor" and there were no abnormal soft tissue changes noted.The fluid collection was noted on a ct scan and no mars mri data was obtained preoperatively.The pathology results of the tissue nor the explants were not provided for review.The claim of a recalled device would need to be confirmed via the lot numbers.Device history review: indicated all devices were manufactured and accepted into final stock with no relevant reported discrepancies.Complaint history review: there has been no other event for the lot referenced.Conclusion: revision surgery for fluid collection around left tha and pseudo tumor with mildly elevated co level of 1.9 (0-0.9), and a finding fretting.A revision surgery did occur for a "pseudo tumor".There was a report of a metal reaction and trunnionosis as well as a claim that the lfit head was recalled.That said, there was prior replacement of the head which could have caused changes on the trunnion, there was no metal staining of the tissues; and the co levels were relatively low.The patient had ongoing pain in the hip that was not clearly related to the "pseudo-tumor" and there were no abnormal soft tissue changes noted.The fluid collection was noted on a ct scan and no mars mri data was obtained preoperatively.The pathology results of the tissue nor the explants were not provided for review.The claim of a recalled device would need to be confirmed via the lot numbers.If further information becomes available or the product is returned, this investigation will be re-opened.
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