How advanced are modern prosthetic limbs?

The answer

Modern prosthetics have evolved from passive wooden limbs to bionic devices controlled by the user's own muscles and nerves. Myoelectric prosthetics detect electrical signals from residual muscles to control motorized joints, while targeted muscle reinnervation surgery reroutes amputated nerves to remaining muscles for more intuitive control. The latest research uses implanted electrodes that provide sensory feedback - allowing users to feel pressure, texture, and temperature. 3D printing has also made prosthetics dramatically more affordable, with functional hands costing as little as $50 in materials.