Serial casting is a process in which a joint or joints (which lack full range of motion) are immobilized with a well-padded plaster/fiberglass/flexible cast. The casts are applied and removed in succession (usually every week) over a specific period of time. During this procedure the affected joint or joints are gradually and repeatedly set in more physiologically correct alignment resulting in an increase in the range of motion. This carries over to the child being able to move in a more functional way with proper alignment and muscle activity.