Diagnostic efficacy of orthostatic X⁃ray radiography in lumbar spondylolisthesis

Objective To analyze the diagnostic efficacy of orthostatic X⁃ray radiography in lumbar spondylolisthesis. Methods Sixty patients with lumbar spondylolisthesis diagnosed by Xuanwu Hospital of Capital Medical University from January to October 2020 were included. The orthostatic X⁃ray and supine CT sagittal reconstruction imaging data were collected, and the Marique. Taillard method was used to measure the relative spondylolisthesis distance (dd') and the length of the upper edge of the inferior vertebral body (cd) on the X⁃ray and CT image post⁃processing workstation. Finally, the degree of spondylolisthesis and the detection rate of lumbar spondylolisthesis based on the subjective readings of doctors in different body positions were calculated. Results Compared with the supine CT sagittal reconstruction parameters, the dd' value (Z=5.918, P=0.000), cd value (Z=4.082, P=0.000) and spondylolisthesis (Z=6.064, P=0.000) were significantly improved. The positive rate of lumbar spondylolisthesis was 95% (57/60), which was higher than 81.67% (49/60, P=0.039) of the supine CT sagittal reconstruction. Conclusions Orthostatic X⁃ray radiography can increase the lumbar vertebra stress of patients, which is beneficial to reflect the degree of spondylolisthesis of vertebra under daily stress conditions and improve the positive rate of lumbar spondylolisthesis. If combined with supine CT sagittal reconstruction, it can be used for clinical diagnosis and provide more detailed imaging data to assist in formulating targeted surgical treatment plans.