It was reported that the cage started backing out post-operatively.Implant is still in the patient and experienced slight pain and slight tingling in finger.Per the communication with sales rep., x- ray image review which was taken (b)(6) 2019 revealed that cage( pin) had not backed out further.Currently, no revision surgery has been planned.
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It was reported that the cage started backing out post-operatively.Implant is still in the patient and experienced slight pain and slight tingling in finger.Per the communication with sales rep., x- ray image review which was taken (b)(6) 2019 revealed that cage( pin) had not backed out further.Currently, no revision surgery has been planned.
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Method: product history review, complaint history review, labelling review and risk assessment.Dimensional, functional and materials analysis could not be performed as the device remains implanted in patient.Results: the customer reported event of a cage anchor migration post-op was confirmed via x-ray images review.Manufacturing records were reviewed for the corresponding lot and no relevant issues were identified.No similar complaints for the reported lot number were identified.Conclusion: based on the x-ray image review, the migrated anchor was not fully locked; therefore, the root cause of the reported anchor migration is due to user's deviation of surgical technique.Per surgical technique "step - anchor channel and insertion:.Visually confirm and use lateral fluoroscopic images to verify that the anchors are flush with the jacket.If the anchor is not locked to the jacket, the anchor will protrude approximately 1.25 mm anteriorly.If after removing the implant inserter and anchor tamp, the anchor still appears proud, use the tamp for final placement.Place distal end of tamp against the superior dovetail and tap with mallet to ensure the anchor is fully seated.".
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