Fig. 3

Postoperative images. a–e Immediate postoperative radiographs and three-dimensional CT scans demonstrate correct mechanical axis and good plate position. f, g Unreduced reverse fragment of the femoral metaphysis. h A bone fragment was removed through a small incision at 1.5 months postoperatively. i–p Radiographic examinations at follow-up. 1.5 months (i, j), 3 months (k, i), 1 years (m, n), and 3 years (o–p) post-operation. q–r Clinical images showing functional outcomes at the last follow-up