Fig. 1
![Fig. 1](http://media.springernature.com/full/springer-static/image/art%3A10.1186%2Fs13018-021-02541-z/MediaObjects/13018_2021_2541_Fig1_HTML.png)
A, B, E, F Two cases of extension-type supracondylar fracture of the humerus in older children. C, D X-ray of the elbow joint after internal fixation with Kirschner wire. G, H X-ray of elbow joint after external fixation
A, B, E, F Two cases of extension-type supracondylar fracture of the humerus in older children. C, D X-ray of the elbow joint after internal fixation with Kirschner wire. G, H X-ray of elbow joint after external fixation