(b)(4).This follow-up report is being submitted to relay additional information.Reported event was confirmed by inspection of device.Device history record (dhr) was reviewed and no discrepancies were found.Root cause was unable to be determined.A g7 pps ltd acetabular shl 60g, part # 010000667 from lot 6578906, was returned and evaluated against the complaint.Visual inspection found blue and yellow debris within the porous coating, however, this is likely to be due to the return packaging material as they are visually consistent.The graticule check was performed.A 5x magnification was used.The porous coat area sits between the tolerance bands when lined up with the shell profile, as required.The brush test was performed and the result was found to be out of specification.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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