CAD modelling of the human femur taking into account the structure of the bone Andrei Horia Brănescu, Ioana-Codruţa Lebădă, Vlăduţ Mihuţ, Nenad Marjanovic and Milan Rackov MATEC Web Conf., 343 (2021) 04010 Published online: 04 August 2021 DOI: 10.1051/matecconf/202134304010