Obrabotka Metallov 2013 No. 4

ОБРАБОТКА МЕТАЛЛОВ № 4 (61) 2013 97 ТЕХНОЛОГИЯ Obrabotka metallov N 4(61), October–December 2013, Pages 92-97 Mathematical simulation of cervical cage mechanical behavior E.D. Golovin, A.N. Pel, E.A. Drobiaz, S.V. Veselov, R.S. Timarevskiy, O.A. Goriaynova, N. Yu. Cherkasova Novosibirsk State Technical University, Prospekt K. Marksa, 20, Novosibirsk, 630073, Russia E-mail: edgolovin@yandex.ru Received 14 November 2013 Revised 20 November 2013 Accepted 22 November 2013 Abstract The results of shape cervical cage design are presented. The cage material is a porous bioinert alumina ceramic. 3D modeling and engineering analysis were carried out using the Solid Works software package. Engineering analysis was based on the finite elements method. The requirements for the shape of a cage made of ceramic were determined. The implant geometry that fulfils the requirements was developed. The simulation of the cage mechanical behavior under uniaxial loading in conditions close to the operation was conducted. The engineering analysis of the ceramic implant revealed maximal stress of 35.6 MPa. This magnitude is lower than compressive strength of typical porous alumina ceramic. Keywords: alumina, biocompatible ceramics, cervical cage, spinal column, implant, finite element analysis References 1. Barysh A.E., Buznickij R.I. Ortopedija, travmatologija i protezirovanie , 2010, no. 4, pp. 50-55. 2. Barysh A.E. Ortopedija, travmatologija i protezirovanie , 2009. no. 4, pp. 35-39. 3. Сerv-X™ Cervical cage. Available at: http://www.ulrichmedical.com/de/cerv-x ™.html (accessed 23 March 2013). 4. Puros®-S and S-2 Cervical Interbody Allograft Implants. Available at: http://www.zimmer.com/en-US/hcp/ spine/product/puros-s-s2-cervical-interbody.jspx (accessed 23 March 2013). 5. Shimjakina I.V., Kir'jakova M.N., Aronov A.M., Medvedko O.V . Sposob poluchenija poristoj struktury kera- micheskogo materiala [The way to producing a porous ceramic structure]. Patent RF, no. 2483043, 2013. 6. Nordin M.A., Frankel V.H. Basic Biomechanics of the Musculoskeletal System. Baltimore, Lippincott Wil- liams & Wilkins, 2012. 470 p. 7. Vihrov S.P., Holomina T.A., Begun P.I., Afonin P.N. Biomedicinskoe materialovedenie: Uchebnoe posobie dlja vuzov [Biomedical Materials Science: A manual for institute of higher education]. Moscow, Gorjachaja linija – Telekom, 2006. 383 p. 8. Obrazcov I.F., Adamovich I.S., Barer A.S. Problemy prochnosti v biomehanike [Problems of strength in bio- mechanics]. Moscow, Vysshaja shkola, 1988. 311 p. 9. Begun P.I., Afonin P.N. Modelirovanie v biomehanike [Modeling in biomechanics]. Moscow, Vysshaja shkola, 2004. 392 p.