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(b)(4).This follow-up report is being submitted to relay additional and/or corrected information.The following sections were updated: b5, d2, d4, d9, g3, g6, h1, h2, h3, h6, h10.Visual examination: the broken ncb plate was returned for investigation together with screws, cerclage cables and locking cups.The plate was broken into two parts.The fracture of the plate is located through a screw hole.On the fracture surfaces, beach lines are visible which point to a possible fatigue fracture failure.The fracture surfaces show also small polished areas and some scratches, most probably due to contact between the parts after the fracture.Some scratches are visible on the surface of the non-bone-facing side of the plate.The device manufacturing quality records indicate that the released components met all requirements to perform as intended.With the available data it is not possible to establish a definitive root cause for the reported event.If any further information is found which would change or alter any conclusions or information, a supplemental report will be filed accordingly.Zimmer biomet will continue to monitor for trends.
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