as PARKINSON’S DISEASE and also with ALCOHOL
intoxication. The classic field SOBRIETY test is a
measure of proprioceptive loss.
See also VESTIBULAR NEURONITIS.
prosthetic limb An artificial arm, hand, leg, or
foot that provides functional replacement for an
amputated or missing limb. A prosthesis repre-
sents a balance between function and presentable
appearance. Prosthetic limbs available today can
provide a very high level of function, allowing
many people to return to nearly the same lifestyle
as before the amputation.
Selection and fitting of the prosthesis can take
place as soon as the AMPUTATIONstump heals from
the surgery. The prosthesis must attach firmly to
the amputation stump, which is more difficult
with high amputations (shoulder or hip). Factors
that are important to consider include comfort
and durability of the prosthesis. Most often it is
advantageous to begin using the prosthesis as soon
as possible after the amputation, to return to nor-
mal daily living.
There are numerous designs and styles of pros-
thetic limbs; the prosthesis is fitted to the person
to meet the person’s unique individual needs.
Some prosthetic limb designs, particularly upper
extremity, strive to appear as natural as possible.
Other designs are primarily functional. Some
designs are mechanical and others are electronic.
Some prostheses are for specific purposes, such as
athletic activities (running, hiking, bicycling,
downhill skiing). Other prostheses may be more
oriented toward allowing the person to return to a
particular occupation or skill.
See also OCCUPATIONAL THERAPY; QUALITY OF LIFE.prosthetic limb 351