BACKGROUND: Isthemic and degenerative lumbar spondylolisthesis exhibit different images.CT can display morphological changes of facet joint, which is superior over X-ray films.

• 背景：真性、假性腰椎滑脱时的影像学表现有许多不同之处，CT能显示小关节的形态学变化，具有普通X射线平片没有的优势。