Morphological Analysis of Tibiofibular Disruption Using CT images in Ankle Fractures with Unstable Syndesmotic Injury:

摘要

Category:TraumaIntroduction/Purpose:We aimed to investigate the diagnostic value of CT scan and the morphologic pattern of distal tibiofibular disruption associated with fracture-type or concomitant avulsion fractures in cases of ankle fracture with unstable syndesmosis requiring surgical fixation.Methods:104 cases images(preoperative plane radiographs and CT axial images) of ankle fractures needed syndesmotic fixation due to unstable syndesmosis on intraoperative stress test were retrospectively reviewed. We classified ankle fractures by Lauge-Hansen classification and AO-OTA classification. Also, associated tibiofibular avulsion fractures including anterior distal tibiofibular avulsion fractures and posterior malleolar fractures were identified. Classification of posterior malleolar fractures based on Bartonícek-Rammelt classification was conducted. We grouped morphologic patterns of distal tibiofibular disruption which is 10 mm proximal to the plafond on CT axial images. We divided them into no diastas...