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ECR 2019 / C-1017
Radiological evaluation of the lumbar lordosis in spine operated patients: is plain film still mandatory?
Congress: ECR 2019
Poster No.: C-1017
Type: Scientific Exhibit
Keywords: Outcomes, Comparative studies, MR, CT, Conventional radiography, Musculoskeletal system, Musculoskeletal spine
Authors: A. Agustí, P. Garcia, I. García Duitama, G. salo bru, J. Ares, A. Solano; Barcelona/ES

Aims and objectives


Sagittal malalignment often wrongly coined sagittal imbalance refers to the loss of normal alignment in the sagittal plane and is associated with recruitment of compensatory mechanism.


Sagittal malalignment by itself is not an indication for surgery but it must be seen as a factor of great relevance when evaluating any patient referred for problems at the vertebral level.


Although there is no consensus on whether it is necessary to perform radiological tests in the postoperative period of asymptomatic patients undergoing spinal fusion arthrodesis, in our Hospital,  the protocol includes the performance of a conventional radiological study in the immediate postoperative period as well as a MDCT before hospital discharge. 


There are different radiological methods when exploring the regional curvature of the lumbar lordosis. The most accepted are:  the Cobb, TRALL, vertebral centroid and the posterior tangent method of the vertebral body. In our study we opted for the Cobb method to be the best known and accepted in the medical community.



The main purpose of the poster is to determine if there are significant differences in the value of lumbar lordosis in the post-operative of patients undergoing lumbar vertebral fusion measured by radiography and through CT o RM.


It was also assessed if there were differences in the values ​​of the lordosis measured in CT and MRI

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