(b)(4).Multiple mdr reports were filed for this event, please see associated reports: 1822565-2014-01184.(b)(4).Complaint sample was evaluated and the reported event was confirmed.Op notes provided for left knee revision.It was apparent the locking ring component was broken into two pieces and articular surface was loose, hence revision surgery carried out.During placement the tibial component was inserted carefully and impacted, excess cement was removed especially posteriorly.A trial spacer was inserted and knee placed ~ 30 degrees of flexion until hardened.12 mm polyethylene liner was inserted and impacted.Excellent stability was achieved mediolateral, equal flexion and extension gaps.There were no complications.X-ray assessment performed and it shows left knee x-rays dated (b)(6) 2014 demonstrate a miller galante medial unicompartmental knee arthroplasty with polyethylene liner wear versus disruption.Review of the complaint history determined that no further action is required as no trends were identified.Root cause was unable to be determined as the necessary information to adequately investigate the reported event was not provided.If any further information is found which would change or alter any conclusions or information, a supplemental will be filed accordingly.Zimmer biomet will continue to monitor for trends.
|