Hello, does anyone know if acdf single level c6/c7 neurosurgery is typically, under normal circumstances meaning without complications, a surgery that needs to be redone after a certain amount of time-like 15 to 20 years? I know there can be complications and the discs above or below can go out, or that it can just not be successful in relieving the pain etc., but that is not what I am asking, I guess I am just trying to determine if it is a temporary surgery where the plate etc., needs to be updated or if done correctly, will it last the life of the patient? I hope this question is not confusing.