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In general, a transfemoral amputee must use approximately 80% more energy to walk than a person with two whole legs.This is due to the complexities in movement associated with the knee.
Different types of Prosthetic Leg Solutions An early mention of a prosthetic comes from the Greek historian Herodotus, who tells the story of Hegesistratus, a Greek diviner who cut off his own foot to escape his Spartan captors and replaced it with a wooden one.
Lower extremity prosthetics describes artificially replaced limbs located at the hip level or lower.
In the prosthetics industry a trans-tibial prosthetic leg is often referred to as a "BK" or below the knee prosthesis.
In newer and more improved designs, hydraulics, carbon fiber, mechanical linkages, motors, computer microprocessors, and innovative combinations of these technologies are employed to give more control to the user.
In the prosthetics industry a trans-femoral prosthetic leg is often referred to as an "AK" or above the knee prosthesis.