Fig. 1

The 3D digital model was reconstructed to analyze the feature of the fracture. The dorsal view (a) and the top view (b) of the distal radius were shown in Mimics software to identify the displacement of the dorsal fragment and the articular step. In Magics software, the dorsal fragment (orange) and the intra-articular fragment (green) were identified and assigned different colors (c and d)