Shape Transformation of Bone Using Basis Vector Method

Abstract

Size and shape of bone depend on age, sex and individual difference. Furthermore, shape of a bone is change in long term due to growing, aging, or affection. Recently, patient oriented analysis has been required in biomechanical study from the viewpoint of tailor medicines, so procedure to make individual bone model is developing based on CT images taken from the patient. The modeling method based on CT images expend much hours and very costly. In this study, basis vector method, which is often used in the structural optimization area, is applied to make individual bone model efficiently. Various shape model can be created by composition between existing basis models in the method. It is applied to change the shape of vertebra, and effectiveness of the method is discussed.