Fig. 2

The bar plots of maximal VMS and displacement for the four fixation groups in 31-A3.1 and 31-A3.3 fracture models. (A) Maximal VMS on implants. (B) Maximal VMS on bones. (C) Maximal displacement. (D) Maximal displacement of fracture surface. VMS represents von Mises stress. MIN-II modified intramedullary nail-II, PFBN proximal femoral bionic nail, ITN InterTAN nail, PFNA proximal femoral nail antirotation.