Modeling and Numerical Analysis of the Strength of the Osteosynthesis Plate Used to Stabilize Long Bone Fractures

The global number of all fracture types in 2019 was estimated at 178 million, an increase of 33.4% compared to data from 1990 [19]. Depending on the type and location of the fracture, different methods of internal stabilization are recommended. However, the most commonly used implants for internal stabilization of bone fractures are osteointegrated plates [12]. They offer a number of advantages, such as high stability of plate fixation, restoration of anatomically compatible relationships between fractured bone fragments and the possibility of rapid rehabilitation after plate implantation. Plate designs are constantly being developed due to ongoing advances in the understanding of factors affecting fracture healing. The aim of presented article is to conduct a numerical analysis of the connection of the femur and the osteosynthesis plate used for the internal stabilization of fractures. Two versions of the osteo-synthesis plate were modeled: a conventional Locking Compression Plate (LCP) and a plate with an alternative geometry (spiral curved). Both plates were tested for stresses, deformations and displacements under given boundary conditions simulating the real biomechanical loads.