Computational Analysis of External Biomedical Fixator and Orthotropic Bone

Abstract

Orthopaedic Fixator assemblies are used to hold broken bones together. Fixators are classified into two types depending upon their placement in the human body external fixator and internal fixators. When the fixators are designed, a great deal of focus and research goes into the study of forces acting on different points of the structure of the component, resulting in a modification in design. The traditional method of conducting such a study is to study the stiffness of fixators and then design the sub-components. However, for designing the fixators, stresses on the bone, the gaps between the fractured bone, bone stiffness and its properties are not widely taken into account. The results of this computational analysis of external fixators indicate that the rigidity of the Sarafix fixator is greater than the rigidity of the unilateral fixator.