The prosthetic that is fitted following a below knee amputation is quite functional these days. Design features that were added to the prosthesis in the 1980s helped the prosthesis more closely mirror the function of the normal human foot absorbing force when the foot hits the ground and returning it as the heel rises. As the technology has improved prosthetic design has become lighter, more comfortable, more functional – and more expensive. The prosthetic has four basic components:
1. The liner
2. The socket
3. The shank
4. The foot plate
