Implants and the Artificial Joint (IMAGE) Chalmers University of Technology Caption An implant is placed into each of the two bones of the forearm -- the ulna and radius -- and then a wrist-like artificial joint acts as an interface between these two implants and the prosthetic hand. Credit Biomechatronics and Neurorehabilitation Laboratory/Chalmers University of Technology Usage Restrictions With credit 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.