During surgery, three screw drivers were broken during the final tightening during pedicle screw surgery.The broken driver tips remained within the set screws and were retrieved.Surgery was delayed one hour to remove the broken driver tips.There was no injury to the patient.Additional correspondence with the sales rep identified the following events: the first screw was successfully torqued.When torquing the second screw, the shaft broke at the top of the cap, flush with the surface of the cap but with material lodged inside the cap.Another two shafts broke with the debris lodged in the cap.The sales rep who was at the surgery suspects that it was the torque handle that failed.Per the sales rep, the torque limiting driver clicked on the first screw but did not click with any of the additional shafts.
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