H6: neither the device nor films of applicable imaging studies were returned to the manufacturer for evaluation.Therefore, we are unable to determine the definitive cause of the reported event.Medtronic is submitting this report to comply with fda reporting regulations under 21 cfr parts 4 and 803.This report is based upon information obtained by medtronic, which the company may not have been able to fully investigate or verify prior to the date the report was required by the fda.Medtronic has made reasonable efforts to obtain more complete information and has provided as much relevant information as is available to the company as of the submission date of this report.This report does not constitute an admission or a conclusion by fda, medtronic, or its employees that the device, medtronic, or its employee caused or contributed to the event described in the report.In particular, this report does not constitute an admission by anyone that the product described in this report has any ¿defects¿ or has ¿malfunctioned¿.These words are included in the fda 3500a form and are fixed items for selection created by the fda to categorize the type of event solely for the purpose of regulatory reporting.Medtronic objects to the use of these words and others like them because of the lack of definition and the connotations implied by these terms.This statement should be included with any information or report disclosed to the public under the freedom of information act.A good faith effort will be made to obtain the applicable information relevant to the report.If information is provided in the future, a supplemental report will be issued.
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Information was received from healthcare provider (hcp) via a manufacturer representative regarding an event which occurred during a revision surgery due to lower back pain, due to the looseness of the l5 screw, there was concern about intervertebral instability at l4/5 after the initial l4/5 olif procedure.It was reported that after removing the left l4 screw, the reported product sv56 cnmas 7.5x50 was attached to the retaining screwdriver and inserted.The torque was applied during the insertion of the pps and the tip portion of the retaining screwdriver was broken and remains in the sv56 cnmas 7.5x50.The cut rod was finally tightened and the sv56 cnmas 7.5x50 was removed.Loosening was observed in the two screws on the left and right sides of l5.Relationship between "lower back pain" and "loosening of the l5 screw" is unknown.The physician believed that the l5 loosening occurred and a fine movement might remain in between the vertebrae on l4/5.The loosened l5 screw was removed during repeat surgery and replaced with medtronic product.Fragment of the screwdriver tip remained in the core of the screw.It became difficult to remove.In the end, it was removed. there were no further complications reported regarding the event.
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