Radiologic Factors Associated With the Dynamic Change of Dural Sac Diameter in Lumbar Spine: A Kinematic MRI Study.

Study Design:This is a cross-sectional radiologic study.Objective:The purpose of this study was to assess radiologic features related to dynamic changes of dural sac diameter using kinematic magnetic resonance imaging.Summary of Background Data:It is well known that the cross-sectional area of the l