(b)(4).Photographs were received and the event was confirmed.The locking screws were broken and the core had disengaged from both the superior and inferior end caps.The locking screws were noted to have broken into multiple fragments.The implants were ot returned as they were discarded by the hospital.No information has been received regarding patient's activity level, or compliance with post-surgical instructions.The information suggests a fall or impact may have occurred, however root cause of the event has not been established at this time.Review of the device history record notes no material non-conformance or manufacturing errors that may have caused or contributed to this mode of failure.
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