What is lower limb prosthesis?
A lower limb prosthesis is the replacement of a lost leg by an artificial one. How many types of lower limb prostheses are available? There are two groups of artificial knees and lower legs. One group is controlled mechanically and the other is controlled by a computer. What are the benefits of a computerized lower limb prosthesis? The main supposed benefit is improved stability of the knee while walking. This means the amputee may have a more natural walk and may be able to walk stairs, inclines, uneven terrain, or when it is hard to see. For example, one of the people in the World Trade Center on September 11, 2001 had lost his leg in a car accident. He believes his computerized lower limb prosthesis enabled him to descent 70 stories to safety (NY Times, January 3, 2002). Other benefits may be increased confidence in the prosthesis; fewer stumbles and falls; and participation in sports for veterans who were active athletes prior to their injury. Why was the VA interested in lower lim
