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No operative notes and/or radiograph images were provided for review of usage/technique.Information regarding the torque handle used and/or the patient's bone quality was not provided.No device was returned for evaluation and not photographs were provided.Based on the information obtained, the complaint was unable to be confirmed and a root cause could not be determined conclusively, but may have been the result of a high-load torsional fracture caused by excessive and or off angle force.Labeling review: "warnings, cautions and precautions: 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." "the instruments should be treated as any precision instrument and should be carefully placed on trays, cleaned after each use, and stored, according to generally accepted hospital methods and practices.The instruments should be carefully examined prior to use for functionality, excessive wear, or damage.A damaged instrument should not be used as this may increase the risk of malfunction and potential patient injury." "care should be used during surgical procedures to prevent damage to the device(s) and injury to the patient." "the physical characteristics required for many instruments do not permit them to be manufactured from implantable materials.If any broken fragments of instruments remain in the body of a patient, they could cause allergic reactions or infections.If an instrument breaks in surgery and fragments go into the patient, these pieces should be removed prior to closure and should not be implanted.".
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It was reported that a patient underwent a procedure from l3 to s1.During the procedure, while the surgeon was final tightening the lock screw on the left s1, the tip of the final lock screwdriver fractured off within the lock screw.The tip was left in-situ, embedded in the lock screw.No further patient impact was reported.No additional information was provided.
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