(b)(4).Concomitant medical devices: unknown stem, unknown liner, unknown head.Foreign country: (b)(6).Reported event was unable to be confirmed due to limited information received from the customer.Device history record review was unable to be performed as the lot number of the device involved in the event is unknown.Root cause was unable to be determined as the necessary information to adequately investigate the reported event was not provided.The reported event was identified during review of a journal article.Shin, w.C., moon, n.H., jeon, s.B., & suh, k.T.(2020).Comparison of surgical outcomes between standard and elevated-rim highly cross-linked polyethylene acetabular liners in primary total hip arthroplasty with minimum 15-year follow-up: single-center, retrospective cohort study.The journal of arthroplasty, 35(5), 1290-1296.Doi:10.1016/j.Arth.2019.12.026.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.Multiple mdr reports were filed for this event, please see associated reports: 0001822565 - 2020 ¿ 02253, 0001822565 - 2020 - 03093, 0001822565 - 2020 - 03094.
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