A comprehensive investigation was immediately initiated on receipt of the complaint.The product was returned for evaluation.A review was conducted of all applicable material records, manufacturing records, storage records, and distribution records according to the descriptions of the product used with the concomitant device.All records revealed all product lots were manufactured within specifications, maintained and distributed in accordance with all federal, state and operating procedures.Upon evaluation neither endplate elicit major damages, fractures, or signs of failure.The bearing surfaces of the superior and inferior endplates were clean with a polished appearance, and no damaged features.Bony deposits were observed on the bony apposition side of the superior endplate.Scratches were observed on the non bearing flange of both endplates consistent with surgical removal.The lateral view of the core showed loss of curvature of the superior bearing surface, biased towards the anterior aspect of the core.The superior aspect of the core showed mile circular deformation marks, as well as on the anterior inferior aspect of the core's bearing surface.Based on the current information available, it is not possible to determine the cause of the posterior expulsion of the secure c core.
|