How a 3D printed aorta helped surgeons replace a ‘ticking time bomb’ inside a man’s chest

Surgeons have replaced most of a man’s aorta in a life-saving operation after scans revealed he was walking around with a “ticking time bomb” inside his chest.

The Queensland man’s aorta, the biggest blood vessel in the body, had ballooned to about four times the usual size, leaving it in danger…