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The reported event was confirmed via correspondence.The device was not returned as they were discarded at the hospital, so an evaluation could not be performed.No lot number was provided so manufacturing records review could not be completed.The device was implanted for a period of 3 years.According to the ifu, "the surgeon must warn the patient that the devices cannot and do not replicate the flexibility, strength, reliability or durability of normal healthy bone, that the implants can break or become damaged as a result of strenuous activity or trauma, and that the devices may need to be replaced in the future.If the patient is involved in an occupation or activity which applies inordinate stress upon the implant (e.G., substantial walking, running, lifting, or muscle strain) the surgeon must advise the patient that resultant forces can cause failure of the devices." additionally, the ifu contains the following adverse effects: - while the expected life of spinal implant components is difficult to estimate, it is finite.These components are made of foreign materials which are placed within the body for the potential fusion of the spine and reduction of pain.However, due to the many biological, mechanical and physicochemical factors which affect these devices but cannot be evaluated in vivo, the components cannot be expected to indefinitely withstand the activity level and loads of normal healthy bone.- fatigue fracture of spinal fixation devices, including screws and rods, has occurred.Conclusion: a definite root cause of the event cannot be determined, but based on the information provided, the patient's abrupt movement along with the length of implantation most likely contributed to the event.
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