"Patients frequently ask their orthopaedic surgeon if their implanted device will set off the metal detectors at the airport, but rarely get an evidence-based answer. Total shoulder, hip, and knee arthroplasty implants composed of cobalt-chromium alloys or titanium are the most likely implants to be detected. Stainless-steel implants in the foot and ankle, stainless-steel plates and screws in the upper extremity, and isolated stainless-steel nails, wires, and screws are the least likely implants to be detected. Contrary to previous findings, body mass index does not seem to impact the rate of detection. We recommend that surgeons provide their patients with medical documentation that can be presented to screeners and with evidence-based education based on the findings of this review and suggest that they avoid unnecessary alarm activation by non-orthopaedic metal."