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It was reported that the patient underwent an initial hip arthroplasty.Subsequently, the patient was revised due to dislocation nearly two months post implantation.During removal, the bearing was pulled off the head.It was reported that no further information was available.
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This follow-up report is being submitted to relay additional information.The following sections were updated/corrected.Updated: b4, b5, d2, g1, g3, g6, h1, h2, h3, h6, h10.H6: proposed component code: mechanical (g04)- head.No product was returned or pictures provided; visual and dimensional evaluations could not be performed.Review of the device history record identified no deviations or anomalies during manufacturing.The reported products were reviewed for compatibility with no issues noted.Radiographs were provided and reviewed by a health care professional.Review of the available records identified the following: right total hip arthroplasty with superior and posterior dislocation and possible underlying polyethylene wear identified post reduction.This complaint was confirmed based on the provided x-rays.A definitive root cause cannot be determined.No corrective actions, preventive actions, or field actions resulted after investigation of this event.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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