PMC6360003_01
Axial computerized tomography (CT) scan depicting the fracture of the tip of the lateral malleolus (A); and a comminuted calcaneal fracture and a transverse fracture of the cuboid (B); The lateral ankle radiograph shows the calcaneal fracture with the talocalcaneal coalition including the "C-Sign" (arrow) (C)
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F1
Additional radiographs revealed a fracture of the tip of the left lateral malleolus without dislocation (Figure 1A), a comminuted fracture of the left calcaneus (Sanders classification type 2A). The CT scan of the left ankle showed the comminuted calcaneal fracture including one of the fracture lines reaching the calcaneocuboid articulation, a transverse fracture of the cuboid (Figure 1B) without gross dislocation and the fracture of the tip of the lateral malleolus. The radiography showed a talocalcaneal coalition (Figure 1C).
The sagittal (A), coronal (B) and axial (C) ankle CT scans showing the calcaneal fracture (white arrow) and the coalition of the middle facet (filled white arrow) of the subtalar joint
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F2
Further, the talocalcaneal coalition was seen to involve the anterior and middle facets of the subtalar joint (Figure 2).    
The lateral (A) and axial (B) calcaneus radiographs are showing the plate fixation of the calcaneus 10-month post-surgery
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F3
Ten months after trauma, the patient had almost reached the same range of motion in comparison to the contralateral side (Figure 3).