Using Prosthetic Limbs: Safety, Care, and Concerns

When an arm or other extremity is amputated or lost, a prosthetic device, or prosthesis, can play an important role in rehabilitation. For many people, an artificial limb can improve mobility and the ability to manage daily activities, as well as provide the means to stay independent.

Prostheses Parts and Types

There is a wide variety of prostheses that are designed to function -- and in many cases look -- like a natural arm, leg, hand, or foot. Although there are many different designs, most have similar parts. These include:

• A socket into which the stump of the amputated limb fits
• The suspension, which holds the prosthesis onto the stump
• The shaft
• The foot, hand, or hook
• A covering for cosmetic appearances

The socket is often lined with foam or silicone to protect the stump. Special socks are also worn over the stump to ensure a proper fit and improve comfort.

Following are some of the most common types of prostheses:

Lower leg and foot. A number of prosthetic feet are available to simulate the action of a natural foot after an amputation below the knee. At least one available foot-ankle prosthesis is controlled by a microprocessor. It uses feedback from sensors to adjust joint movement, making walking more efficient and reducing the risk of falls.