Have Medical Questions? Ask a Doctor Online!
Hello from JustAnswer.
You do not need specific documentation. It is certainly fine to carry documentation of the implant, such as a brief note from your doctor. But even with such a document, anyone that sets off the initial metal detector will need a secondary examination, such as with a wand. If someone could avoid additional search by documentation of orthopedic implants, every terrorist would sustain a fracture that needs implants for treatment.
Generally speaking, there will not be a problem with having a metal implant and it will only be a minor inconvenience. Like in any occupation, there are some TSA employees that may not be as good as others, but anyone working airport security except the newest hires would have experienced many people with various medical implants.
If I can provide any additional information, please let me know.
Please let me know if I can provide any further assistance.