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The device was not received by nuvasive and no photographs received so the complaint could not be confirmed.Lot number provided does not match any nuvasive device nomenclature.Due to a lack of information provided a definitive root cause could not be determined although review of the reported event found it to be consistent with known failure mode where the inserter is attached and turned backwards past the starting point with force, or the core is expanded the retracted with force damaging or jamming the device and likely a cause or contributor to the reported event.No additional investigation can be completed at this time should additional information or the device be received an additional investigational report will be filed.Manufacturing review: no lot code information was provided so a complete manufacturing review could not be completed labeling review: "pre-operative warnings 5.Care should be used during surgical procedures to prevent damage to the device(s) and injury to the patient." "all components should be final tightened per the specifications in the surgical technique.Implants should not be tightened past the locking point, as damage to the implant may occur." "warnings, cautions and precautions the subject device is intended for use only as indicated.The implantation of spinal systems should be performed only by experienced spinal surgeons with specific training in the use of this spinal system because this is a technically demanding procedure presenting a risk of serious injury to the patient." ".Note: once the core is either in its fully compressed or fully expanded state, do not continue to rotate the teardrop handle.Over-expanding or over-compressing may result in implant stripping."(b)(4).
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