Roentgenographic evaluation of lumbar spine flexion-extension in asymptomatic individuals.
Hayes M A, Howard T C, Gruel C R, +1 more·Spine
An experimental clinical study of angulatory and translational lumbar spine intervertebral motion was performed using flexion-extension radiographs obtained in the lateral plane. These "bending" films were obtained from 59 asymptomatic individuals undergoing routine pre-employment examination. Results indicate that the…