Abstract: A therapeutic support appliance for a patient disposed in a seating orthosis is provided with a base portion with casters coupled to its underside. A plurality of stanchions extend upwardly from the base member for engaging an adjustable handle and an adjustable orthosis support member, respectively. The handle can be adjusted to a height determined in response to a physical size characteristic of an operator or a therapist, and the orthosis support can be raised, lowered, or tipped in response to a physical size characteristic of the patient, the height of a table, or the administration of physical therapy. In one embodiment the appliance is formed of a vinyl coated steel tubular elements joined to one another.