No device evaluation possible as it remains in the patient.Radiograph images were provided.There is a visible loose radiopaque piece anterior to the plate.It is unknown if the radiopaque piece is part of the locking mechanism.The identifying lot number was not provided; therefore, a review of the device history record could not be performed.The root cause is could not be determined.Labeling review: "warnings/cautions precautions: potential risks identified with the use of this device, which may require additional surgery, include device component fracture, loss of fixation, non-union, fracture of the vertebrae, and necrosis of bone, neurological injury and vascular or visceral injury." "possible adverse effects: initial or delayed loosening, disassembly, bending, dislocation and or breakage of device components.".
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