Model Number N/A |
Device Problems
Corroded (1131); Material Erosion (1214); Migration or Expulsion of Device (1395); Unstable (1667); Patient Device Interaction Problem (4001)
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Patient Problems
Necrosis (1971); Pain (1994); Metal Related Pathology (4530); Muscle/Tendon Damage (4532)
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Event Date 03/11/2021 |
Event Type
Injury
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Event Description
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It was reported that the patient was revised due to pain, metallosis, pseudotumor and elevated metal ions approximately 8 years post implantation.Intra-operative findings included cloudy fluid, a massive solid pseudotumor with necrosis, and grade two trunnion corrosion.Attempts have been made and additional information on the reported event is unavailable at this time.
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Manufacturer Narrative
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(b)(4).Catalog number:00801803604 lot number: 62178302 brand name: cocr heads.Catalog number:00620006022 lot number: 62086037 brand name: f/m acet shell 60mm.Unknown stem.Unknown bearing.Multiple reports were submitted along with this report: 0002648920-2022-00084.The investigation is in process.Once the investigation has been completed, a follow-up mdr will be submitted.
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Event Description
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No further event information available at the time of this report.
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Manufacturer Narrative
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This follow-up report is being submitted to relay additional information.The following sections were updated.H6:proposed component code: mechanical (g04)- stem.Visual examination of the provided pictures identified black debris on the surface of the head.Products are covered in bio-debris.No pictures were provided of the stem reported event was unable to be confirmed.Device history record (dhr) review was unable to be performed as the item and lot number of the device involved in the event is unknown.Root cause could not 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.
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Manufacturer Narrative
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This follow-up report is being submitted to relay additional information.Multiple reports were submitted along with this report 0001822565-2022-02036.
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Event Description
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It was reported that the patient was revised due to pain, multiple dislocations, metallosis, pseudotumor and elevated metal ions approximately 8 years post implantation.During the revision, mild wear was found to the trunnion was found, leading to chronic instability.Damage was noted in much of the abductor musculature, proximal portion the vastus lateralis, a portion of the short external rotator muscles, and necrotic tissue to the gluteus minimus.It was also noted that there was grey-tinged fluid in the hip joint, but patient was negative for infection.The stem was left intact, and all other components were replaced with a mixed manufacture combination.Attempts have been made and additional information on the reported event is unavailable at this time.
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Event Description
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No additional event information to report at this time.
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Manufacturer Narrative
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This follow-up report is being submitted to relay additional information.Visual examination of the additional provided pictures identified the explanted head, shell, liner, and screw, all covered in bio-debris.The head shows black debris and damage is noted to the liner from explant.No further evaluation can be made from the provided pictures, and pictures were not provided of the stem.Medical records were provided and reviewed by a health care professional.Review of the available records identified the following: a revision was performed as the patient was experiencing chronic instability with 3 dislocations, trunnionosis, and elevated metal ions.During the revision, extensive tissue damage was encountered with necrotic tissues from metallosis.Black debris was noted between the head and stem.The surgery was completed with zimmer and depuy products, and a drill bit broke deep within the bone but was not retrieved.The drill bit was likely a depuy product.Review of the device history records identified no deviations or anomalies during manufacturing related to the reported event for the liner and stem.Root cause unchanged.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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Search Alerts/Recalls
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