Proper casting position is critical when you are prescribing a functional ankle-foot orthotic (AFO). Recently, I have seen a number of functional AFO casts with excessive plantarflexion. These casts are unusable and have to be redone. This, of course, is inconvenient for you and your patient.
For best function and comfort, place the hinges of a functional AFO so they are directly over the distal tip of each malleolus. This ensures the brace moves naturally with the ankle joint and dramatically reduces the possibility that a patient will experience malleolar irritation.