Also found in: Dictionary, Encyclopedia.
an orthopedic appliance or apparatus used to support, align, prevent, or correct deformities or to improve function of movable parts of the body. See also brace and splint.
cervical orthosis a rigid plastic orthosis that encircles the neck and supports the chin and the back of the head; used in the treatment of injuries to the cervical spine.
dynamic orthosis an orthosis that both gives support and aids in the initiation and performance of movement by a body part.
flexion orthosis (flexor orthosis) tenodesis splint.
Rarely used term for an orthopedic brace, splint, or appliance.
[ortho- + -esis, process]
or·tho·sis, pl. orthoses (ōr-thō'sis, -sēz)
An external orthopedic appliance, as a brace or splint, that prevents or assists movement of the spine or the limbs.
[G. orthōsis, a making straight]
pl. ortheses [Gr.] orthosis.