Medical product: liner standard 3.5 mm offset 40 mm i.D.For use with 58 mm o.D.Shell, catalog# : 00630505840; lot# : 62858013.Therapy date: (b)(6) 2019.The manufacturer received other source documents for review.The manufacturer did not receive the device for investigation.Where lot numbers were received for the devices, the device history records were reviewed and found to be conforming.A cause for this specific event cannot be ascertained from the information provided.As soon as supplemental information becomes available an updated report will be submitted.Zimmer biomet¿s reference number of this file is (b)(4).
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Event summary: it was reported that the patient underwent an initial hip arthroplasty on (b)(6) 2015.The patient complaint of a squeaky noise while walking.Subsequently, when the patient was revised, upon opening the joint, the liner was in pieces and the femoral head was black.The surgeon always withdrew fluid from the joint and that was also black.The shell remained implanted but the locking ring inside was replaced.Review of received data no further "due diligence" required as all required information to support the conclusion was already requested, but not received.A photograph of the explanted products has been received.The fractured taper liner is visible.Besides the taper liner fragments a biolox head is visible.A large amount of the head's surface is discolored black and some black discoloration can be seen on the taper surface.Devices analysis no product was returned to zimmer biomet for in-depth analysis, as both products were retained by the hospital.Review of product documentation: all involved devices are intended for treatment.The compatibility check was performed from www.Productcompatibility.Zimmer.Com and showed that the product combination was approved by zimmer biomet.Dhr review: the quality records show that all specified characteristics have met the specifications valid at the time of production.Conclusion summary : it was reported that the patient underwent an initial hip arthroplasty on (b)(6) 2015.The patient complaint of a squeaky noise while walking.Subsequently, when the patient was revised, upon opening the joint, the liner was in pieces and the femoral head was black.The surgeon always withdrew fluid from the joint and that was also black.The shell remained implanted but the locking ring inside was replaced.No product was returned or pictures provided, as the products were retained by the hospital; therefore visual and dimensional evaluation could not be performed.Review of the device history record identified no deviations or anomalies during manufacturing.Therefore, the investigation results did not identify a non-conformance or a complaint out of box (coob).The reported products were reviewed for compatibility with no issues noted.Medical records were not provided.It is possible that the black discoloration on the head is metallic material transfer from the contact of the head with the shell after the fracture of the liner.Nevertheless, based on the lack of medical records and due to the unavailability of the product no exact root cause could be identified.The need for corrective measures is not indicated and zimmer gmbh considers this case as closed.Zimmer biomet¿s reference number of this file is (b)(4).
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