Spine kinematics: a digital videofluoroscopic technique

These studies were aimed at developing an image processing method for the measurement of intervertebral movement using video fluoroscopy. The technique is directed primarily at the assessment of patients with suspected mechanical dysfunction of the spine. The accuracy was established using a calibration model of spinal segments. The method was then applied to lumbar images obtained from motion X-rays of asymptomatic volunteers. The results suggest that it is possible to create a rapid clinical method for accurately defining spine kinematics with a level of X-ray dosage acceptable for screening and investigation in patients where conventional levels are not justified by the severity of the disability.<>