Fig. 1From: A finite element analysis and cyclic load experiment on an additional transcortical-type hole formed around the proximal femoral nail system’s distal locking screw A Comparison of stress distribution among three cases according to nail screw hole locations. B Creating a rigid body to simulate the experimental conditions of the upper part of the femur, transferring the load to the head of the femur (0–3000 N), and setting the contact glue to the rigid body (cylinder) and the femoral head. C The femur is made in three parts of three-dimensional shell modeling, and the Implant (PFNA) is made using Tetra/Hexa Mesh modeling Back to article page