?:definition
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Thoracic-lumbosacral spine immobilizer orthoses designed for maximum restriction of movements and/or total immobilization of the thoracic, lumbar, and sacral segments of the spine. They restrict spine segment movements (flexion and/or extension) in the sagittal, coronal, and/or transverse planes (i.e., provide control of movement in the three planes). These orthoses usually consist of rigid (custom-made and prefabricated orthoses are available) structures typically made of malleable radiolucent aluminum alloys. The orthosis includes a thoracic band with sub-clavicular extensions (known as cowhorn projections) as well as pelvic, lateral, and paraspinal bars. Triplanar control immobilizer orthoses are intended for long-term care of spinal deformities and for rehabilitation after trauma when movement control in the three planes is needed.
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