Digital motion x-ray (DMX) is a new type of fluoro-base x-ray system, coupled with new digital and optic technology, allowing clinicians to view the spine and extremity articulations in real-time motion at 30 exposures per second. The procedure is performed with the patient standing and actively moving in a weight bearing position within the system. DMX allows clinicians to evaluate all 22 major ligaments of the cervical spine with up to 2,700 x-ray images.