STRYKER ORTHOPAEDICS-MAHWAH MODULAR DUAL MOBILITY INSERT; PROSTHESIS, HIP, SEMI-CONSTRAINED, METAL/CERAMIC/POLYMER, CEMENTED OR NON-POROUS
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Model Number 626-00-36C |
Device Problems
Corroded (1131); Adverse Event Without Identified Device or Use Problem (2993)
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Patient Problem
Pain (1994)
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Event Date 02/24/2021 |
Event Type
Injury
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Manufacturer Narrative
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Review of the device history records indicate devices were manufactured and accepted into final stock with no relevant reported discrepancies.There have been no other similar events for the lot referenced.Should additional information become available, it will be provided in a supplemental report upon completion of the investigation.
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Event Description
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Dr.Performed a revision surgery on (b)(6) 2021.He removed a cocr mdm liner from a trident ii cup that had been in 15 months.The pt.Complained of pain and effusion.Update 26/february/2021 wg: spoke to rep.Patient also had elevated ion levels.The mdm metal liner, adm/ mdm insert, and ceramic head were revised.Rep reported he may be able to confirm the operative side (as this patient has an identical, as-yet-not-revised construct in his other hip), and confirmed that no further information will be released by the hospital or surgeon.
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Event Description
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Dr.Performed a revision surgery on (b)(6) 2021.He removed a cocr mdm liner from a trident ii cup that had been in 15 months.The pt.Complained of pain and effusion.Update 26/february/2021 (b)(6): spoke to rep.Patient also had elevated ion levels.The mdm metal liner, adm/ mdm insert, and ceramic head were revised.Rep reported he may be able to confirm the operative side (as this patient has an identical, as-yet-not-revised construct in his other hip), and confirmed that no further information will be released by the hospital or surgeon.
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Manufacturer Narrative
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The following devices were also listed in this report: device: unknown trident ii clusterhole shell; cat#: unknown ; lot#: unknown.Reported event: an event regarding corrosion involving an mdm liner was reported.The event was confirmed based on product inspection.Method & results: -device evaluation and results: visual inspection: visual inspection was performed as part of the material evaluation and indicated the following comments: the liner base material and debris were analyzed using energy dispersive spectroscopy (eds).The eds analysis showed that the liner was consistent with the drawing (astm f1537) and that the debris was consistent with an oxide and corrosion product.Dimensional inspection: not performed as the dimensional aspects are not in question.Functional inspection: not performed as the functional aspects are not in question.Material analysis: the liner base material and debris were analyzed using energy dispersive spectroscopy (eds).The eds analysis showed that the liner was consistent with the drawing (astm f1537) and that the debris was consistent with an oxide and corrosion product.-clinician review: no medical records were received for review with a clinical consultant. -device history review: all devices were manufactured and accepted into final stock with no relevant reported discrepancies. -complaint history review: there have been no other similar events for the reported lot. conclusion: it was reported that the patient was revised due to corrosion.The event was confirmed based on product inspection.Visual inspection: visual inspection was performed as part of the material evaluation and indicated the following comments: the liner base material and debris were analyzed using energy dispersive spectroscopy (eds).The eds analysis showed that the liner was consistent with the drawing (astm f1537) and that the debris was consistent with an oxide and corrosion product.No further investigation is required at this time.If additional information becomes available to indicate further evaluation is warranted, this record will be reopened.
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