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Corrected information: h3.Yes.H6.Investigation findings: 3252.Investigation conclusion: 61.Visual inspection confirms that the threaded tap at the distal end has sheared from the instrument.There is also a slight bend to the smaller diameter with the depth laser marking.The threaded tap at the distal end has sheared from the instrument.There is also a slight bend to the smaller diameter with the depth laser marking.The cause of this failure is likely due to off-axis force applied while tapping which can increase torsional loads at the shaft-tap transition, resulting in torques higher than the design can withstand.Review of device history records showed no manufacturing or processing related irregularities.Labeling review: warnings/cautions/precautions: risks identified with the use of these devices, which may require additional surgery, include device component failure, loss of fixation/stabilization, non-union, vertebral fracture, neurological injury, vascular or visceral injury.Possible adverse effects: initial or delayed loosening, disassembly, bending, dislocation and/or breakage of device components.
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