wrist

While we frequently hear about the replacement of arthritic hips and knees with implants, wrists are another matter, as they're very complex joints. And although artificial wrists do exist, a new one is claimed to provide a fuller range of motion.

Researchers have developed a prosthetic joint that connects directly to the forearm bones of an amputee, allowing them to use a prosthesis with a wrist-like rotary movement. Use of the new joint could dramatically improve the quality of life for amputees.