This user facility is outside of the united states.The product identification necessary to review manufacturing history was not provided.Current information is insufficient to permit a conclusion as to the cause of the event.The following sections could not be completed with the limited information provided: device info - lot number and expiration date unknown; date implanted - date unknown; manufacture date ¿ unknown.Examination of returned device found no evidence of product non-conformance.During the evaluation, evidence of fretting was noted on the taper adapter.Evidence of wear and scratches were also found on the femoral head.However, dimensional evaluation could not be completed on the head and cup as biological residue covered the device obscuring the articulating surfaces.Therefore, a conclusive root cause could not be determined.There are warnings in the package insert that state that this type of event can occur: under possible adverse effects, number 11 states, "wear and/or deformation of articulating surfaces." this report is number 2 of 2 mdr's filed for the same patient (reference 3002806535-2013-00294 & 3002806535-2016-00024).
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