AFO’s are made in moulded plastic or a variety of other materials. Straps, joints, springs and other modifications improve the function of many AFOs. AFO's are commonly used in the treatment of disorders that affect muscle function such as stroke, spinal cord injury, muscular dystrophy, cerebral palsy, polio and multiple sclerosis. AFO's can be used either by providing support to weak or atrophied limbs or by positioning contracted limbs into a functional position. AFO's can be used to immobilize the limb in the presence of arthritis or fractures. They are also used for post-surgical stabilization and prevention/ treatment of various sports injuries like tendinitis, Sprains etc.

Articulated AFO’s are made of various joints names Tamarack, Okhlahoma, Camber Axis, Double Action and triple Action ankle joint. They are used for limiting ankle motion, foot drop and medio-lateral stability.