Surgeons Replace 75% of Guy's Skull —Using 3D Printer

The world of 3D printing continues to impress: Now, experts have used it to replace three-quarters of a man's skull. The team obtained images of the needed skull sections using CT scans; they then made the replacement by layering a special type of plastic known as PEKK, whose rough surface helps with bone cell growth, Science News reports. The FDA approved the process last month, and the surgery occurred March 4. Doctors will be monitoring the patient for any future complications. (More 3D printers stories.)