Detailed and Accurate Assessment of Femur Anatomical Indices Using Ct-based 3d Models

Accurate measurement of the lower limb anatomy is clinically important not only for applications such as implants selection and fracture management, but also for planning the corrective osteotomy operations in case of having excessive deformities [1]. The 3D reconstructed anatomical models, based on CT or MRI, provide an effective tool for analysing the anatomy of long bones [2]. However, there is still a poor consensus about the most optimal technique for measurement and description of the anatomical features and assessment of the deformities, considering the complex 3D shape of bones. Researchers have used varieties of axes and reference landmarks for this purpose with no established standard in defining them, leading to a wide range of reported data that are not reproducible [3].