Customized 3-D Printed Models (IMAGE) University of California - San Diego Caption Engineers used CT scans to 3-D-print custom-made models of the hip joint, which allowed a physician to practice before each surgery. Credit University of California San Diego Usage Restrictions Please credit University of California San Diego License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.