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A knee-ankle-foot orthosis (KAFO) is an orthosis that encumbers the knee, ankle and foot. Motion at all three of these lower limb areas is affected by a KAFO and can include stopping motion, limiting motion, or assisting motion in any or all of the three planes of motion in a human joint: saggital, coronal, and axial. Mechanical hinges, as well as electrically controlled hinges have been used. Various materials for fabrication of a KAFO include but are not limited to metals, plastics, fabrics, and leather.
