CT Analysis of the Fourth Lumbar Vertebral Spondylolisthesis / 实用放射学杂志

ABSTRACT

Objective To evaluate clinical and CT features of the 4 th lumbar vertebral spondylolisthesis (L 4DS ) as well as CT value in its diagnosis. Methods CT features of 36 cases of L 4DS were observed and interarticular distance (IAD) and facet joint angle (FJA) were measured and compared with control group.Results Patients with L 4DS mostly were over 40 years old. CT features included degenaration, spondylolisthesis and spinal canal stenosis. IAD and FJA were significantly narrowed. Conclusion CT axial scans combined with plain films,CTM and MPR clearly shows basic changes of L 4DS , providing useful details for clinical management. Narrow posterior vertebral part are important factors leading to L 4DS.