Abstract: A method for analyzing spinal characteristics of a patient believed to have one or more spinal abnormalities in which vertebral body rotations of the patient are determined for a plurality of spinal vertebrae and are graphically displayed along with vertebral body rotations of a normal person having no spinal abnormalities so that such displays can be readily compared to determine the locations of a patient's spinal abnormalities. Similar graphical displays of the differences in the relative rotational relationship of each vertebra and its superior neighboring vertebra can be provided for a patient and compared with graphical displays thereof for a normal person to identify locations of abrupt positional alignment changes representing spinal abnormalities Of the patient.