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(b)(4).D10 - medical product: femur cemented posterior stabilized (ps) catalog #: 42570606201, lot #: 64983078.Articular surface fixed bearing constrained posterior stabilized (cps) catalog #: 42512600510, lot #: 64982998.Unk cement catalog #: unk, lot #: unk.H3: customer has indicated that the product will not be returned because it remains implanted.The investigation is in process.Once the investigation has been completed, a follow-up mdr will be submitted.
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It was reported patient is experiencing pain, instability, and moderate difficulties with activity of daily living approximately two years post implantation.Attempts to obtain additional information have been made; however, no more is available.
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This follow-up report is being submitted to relay additional information.The following sections were updated: b4, b5, g3, g6, h1, h2, h3, h6, h11.Reported event was unable to be confirmed due to limited information received from the customer.Device was not returned.Device history record (dhr) was reviewed and no discrepancies relevant to the reported event were found.A definitive root cause cannot be determined.Medical records review noted on exam instability measuring in full extension little or less than 5mm and at 90 degrees moderate less than 5mm.2-10 degrees valgus, bilateral tka, rom 110, moderate knee pain, feels like knee with suddenly give way, moderate difficulties with adl¿s, no abnormalities noted on xray.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.
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