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Yeganeh A, Moghtadaei M, Otoukesh B, Soleymani M, Mahdavi S M, Amiri S. Radiologic Assessment for Evaluating the Post-operative Reduction of Syndesmosis: A Retrospective Study. JROS 2021; 8 (1) :29-36
URL: http://jros.iums.ac.ir/article-1-2143-en.html

Background: Assessing the reduction of syndesmosis is highly recommended due to the complications occurring after the malreduction of the syndesmosis. This study evaluated the post-operative Computed Tomography (CT) scans and standard plain radiographs for assessing the reduction of syndesmosis post-operatively.
Objectives: Evaluating the radiologic assessments of post-operative reduction of syndesmosis.
Methods: In this retrospective cohort study, 45 patients presented with ankle fractures and syndesmosis failure to the emergency department of our hospital between 2015 and 2019 were evaluated by post-operative CT scans and plain radiographs.
Results: Diastasis was demonstrated in 18 patients (40%) in plain radiographs, in 4 patients (8%) by tibial clear space, in 5 patients (11%) by medial clear space, in 10 patients (22%) by AP tibiofibular overlap, and in patients 8 (17%) by mortise tibiofibular overlap. Diastasis was demonstrated in 24 patients (53%) in CT scans, of whom 18 patients had abnormal radiographic parameters, while 6 patients had normal radiographic parameters.
Conclusion: We found a post-operative CT scan more useful than standard plain radiographic measurement for assessing the reduction of the syndesmosis. We suggest the use of post-operative CT scan as a routine to evaluate the syndesmosis reduction.