This ingenious new prosthetic mimics the bones and ligaments of a human foot

Many prosthetic feet use blades. Here’s why adding toes could help.

The human foot has 26 bones, 33 joints, and over 100 muscles, tendons and ligaments. Yet, most prosthetic feet on the market a consist of a single blade. A new concept from the Italian Institute of Technology in Genoa offers an intriguing alternative.