Metal implants in the body, including joint replacements, plates, screws, and rods, can set off metal detectors at the airport. For many years, patients were given wallet-sized ID cards from their doctor to inform the security personnel of their implanted metal.
Setting Off a Metal Detector
If your implanted metal sets off an airport metal detector, you will be asked to proceed with a secondary screening. This may consist of using a wand or a pat-down to ensure that the metal is inside your body.Some doctors recommend wearing loose fitting clothing so that you can reveal your surgical scar, however, the TSA clearly states that is not necessary. It is not required that clothing be removed or lifted to demonstrate your surgical scar.
Sources:
TSA: Passengers With Pacemakers, Defibrillators, Other Implanted Medical Devices, & Metal Implants


