Fig. 2
A: the distance between the proximal fracture site and the physeal plate of the proximal radius was accurately measured preoperatively and was denoted as “a”; the length of the fracture line relative to the longitudinal axis of the radial shaft was denoted as “b”; the diameter of the medullary cavity at the fracture site was “c.” B: the distance between the head of ESIN and the apex of the proximal prebending point was “a1”; the longitudinal distance between the two apexes of the prebending point was “b1”; and the transverse distance was “c1”. C: DRMDJ fracture with obvious displacement. D: The degree of displacement decreases after closed reduction. E: Inserting ESIN with conventional method, the degree of displacement increased. F: Inserting the precision shaping ESIN, the satisfied fracture alignment is obtained