Amputation consists of removing an extremity of the body, normally by surgery, but can sometimes occur independent of the will of the patient as a result of trauma when one of the members is torn from the body. Medically speaking, it is sometimes practiced as a last resort to avoid the spread of a gangrenous infection. In this case, the most frequent amputation occurs in the lower extremities. The fingers are also amputated. An amputation can follow prolonged exposure to cold, having permanently damaged the nerves. To replace the amputated part, a prosthesis can be an interesting option to avoid the inconveniences of losing a limb.