High Quality Content by WIKIPEDIA articles! Orthotics (Greek: Ορθός, ortho, "to straighten" or "align") is a specialty within the medical field concerned with the design, manufacture and application of orthoses. An orthosis (plural: orthoses) is an orthopedic device that supports or corrects the function of a limb or the torso. An orthopaedic brace, "appliance," or simply brace is an orthopaedic device used to: