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Cervical spine immobilizer orthoses designed for maximum restriction of movements and/or total immobilization of the cervical segment of the spine; they usually restrict head, neck, and cervical spine lateral and rotational motion. These orthoses usually consist of rigid (prefabricated or, less frequently, custom-made) structures made of light metallic or hard plastic radiolucent materials that are placed encircling the neck. Cervical spine immobilizers are used for emergency stabilization of injured patients and for long-term care of patients after injuries or surgery. Dedicated rigid and semi-rigid collars and braces intended for immobilization of the cervical spine are available. Orthoses that provide additional control of lateral flexion and rotation (e.g., poster-style orthoses) are also available.
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