MSCT and X-ray: The Comparison of Clinical Value in the Diagnosis of Lumbar Spondylolisthesis

Objective: To evaluate the accuracy of MSCT and X-ray diagnosis of lumbar spondylolisthesis.Methods: 40 lumbar spondylolisthesis cases who received the operation after the plain X-ray film and MSCT examination.Contrast the degrees,positions and type of lumbar spondylolisthesis examined by X-ray film and MSCT with the operation result.Results: the operation result showed that 27 cases were true spondylolisthesis and 13 cases were false spondylolisthesis.Contrasted with the operation result,the accuracy of lumbar spondylolisthesis type and position examined by MSCT and X-ray is 100 %;predicted values of sensitivity specificity positive and negative results of the spondylolisthesis judged by plain X-ray film are 59.3 %,100 %,100 % and 54.2 % respectively.Predicted values of sensitivity specificity positive and negative result of the olisthy judged by MSCT are all 100 % in the four above-mention aspects.There is apparently statistical disparity between olisthy properties examined by X-ray and MSCT(P<0.01).Conclusion: Both X-ray and MSCT can examine the degrees and positions of lumbar spondylolisthesis accurately,and MSCT can judge the lumbar spondylolisthesis type more accurately than X-ray apparently.X-ray screening is still the basic method;MSCT can make a further definite diagnosis of the type and offer more valuable image information for clinical treatment.