| Model Number |
1506-10-008 |
| Medical Device Problem Codes |
Loss of or Failure to Bond (1068); Migration (4003)
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| Health Effect - Clinical Codes |
Pain (1994); Loss of Range of Motion (2032); Synovitis (2094); Osteolysis (2377); Joint Laxity (4526); Swelling/ Edema (4577)
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| Date of Event |
02/25/2021
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Type of Reportable Event
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Serious Injury
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Additional Manufacturer Narrative
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Product complaint # (b)(4).Initial reporter occupation: lawyer.If information is obtained that was not available for the initial medwatch, a follow-up medwatch will be filed as appropriate.
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Event or Problem Description
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Patient received a right revision of an unknown unicompartmental knee to treat aseptic loosening.A primary attune knee was implanted.The patella was resurfaced and depuy cement x 2 was utilized.The procedure was completed without complications.Patient¿s right knee was revised to treat pain, instability, loss of function, and swelling secondary to suspected tibial tray loosening.Upon entering the joint, a large effusion was evacuated.The surgeon identified and excised extensive periarticular hypertrophic synovitis consistent with polyethylene wear.Upon inspection, the surgeon identified wear and a cold-flow deformation on the insert, with notable backside wear.The tibial tray was loosened and debonded at the cement to implant interface and revised.The surgeon notes the tibial tray had moved into varus due to an osteolytic lesion along the medial tibial plateau that the surgeon attributed to the poly debris generated by the wear from the insert.The femoral component was well fixed but revised to accommodate the revision knee devices.The patella was well-fixed with no signs of wear and retained.The patient was revised with an unknown revision knee system.The procedure was completed without complications.Doi: (b)(6) 2016, dor: (b)(6) 2021, right knee.
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Additional Manufacturer Narrative
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Product complaint # (b)(4).Investigation summary: no device associated with this report was received for examination.The information received will be retained for potential series investigations if triggered by trend analysis, post market surveillance, or other events within the quality system.Depuy considers the investigation closed.Should additional information be received, the information will be reviewed and the investigation will be re-opened as necessary.Device history lot: product code 150610008, work order 8298203 was manufactured on 13-may-2016.16 parts were manufactured per specification and all raw materials met specification.Scrap: 4 parts from this lot were scrapped.1 part was scrapped for reason code a021 (blast scrap) at machine component step.All parts were inspected as per tm-101254 rev 2 (attune tray blast inspection test method) with the 1 part failing being scrapped.3 parts were scrapped for reason code a739 (datum d flatness) at texture blast ¿ 60 grit step.All parts were inspected on cmm as per 103067905 rev 4 (test method attune rp trays cmm inspection trays value stream) with the 3 parts failing being scrapped.The remaining 16 parts passed the cmm inspection.Reprocessing: there was no material reprocessing reports (mrr) associated with this lot.Non-conformance: there were no non-conformances associated with this lot.
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Search Alerts/Recalls
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