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No device was returned and no radiographs were provided confirming alleged incident.The root cause of the event is unknown but is likely the result of excessive torque and/or off angle forces.There was no patient injury or impact as a result of the event and the surgery was completed without incident.The fractured tip of the driver was left in patient and is not a concern for migration as it was notably secured under the rod and lock screw.No additional investigation can be completed.Label review: " do not implant the instruments: complications to the patient may include, but are not limited to: breakage of the device, which could make necessary removal difficult or sometimes impossible, with possible consequences of late infection and migration.Breakage could cause injury to the patient.Injury that may result from instrument breakage, slippage, misuse, or mishandling." "pre-operative warnings - the method of use for the instruments are to be determined by the user¿s experience and training in surgical procedures.Some instruments may be used in conjunction with other nuvasive devices.Refer to the instructions for use for these devices for important labeling information.Do not use these instruments for any action for which it was not intended such as hammering, prying, or lifting." "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." device not returned.
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