Computers and Artificial Limbs
by J. Michael Wheatley, Ph.D

What would be worse - having an amputation or having an artificial limb that does not fit properly?

If you have an amputation, you are not alone. There are more than 1.5 amputees per 1,000 people in the United States. Therefore, the present total is approximately 380,000 and the number of people with amputations is expected to increase by 47 percent by the year 2020. The leading cause is peripheral vascular disease (74%), Accidents (23%) and birth defects (3%) are second and third.

Fortunately for these people there is now innovative computer technology which greatly improves the process of obtaining a proper fitting ultra-lightweight artificial limb. This revolutionary process is called "Computer-aided Design and Computer-aided Manufacturing" or CAD-CAM for short. This process increases the accuracy by working directly from the patient's anatomy, produces a 3-dimensional virtual reality computerized on-screen image of the residual limb, and permits patient participation in the immediate computer modifications to the socket design to relieve areas that have caused discomfort in the past. Space-age materials such as titanium are utilized in the components to create strong yet ultra-light artificial limbs.

The CAD-CAM system achieves a never-before-possible level of accuracy and comfort. It also benefits the patient by providing quick, seamless fabrication for optimal fit and function. The CAD-CAM system benefits patients who are trans-femoral (AK) or trans-tibial (BK) amputees.

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