Abstract
This chapter aims to bring the reader some knowledge about porous metals and their use in orthopedics in particular. The first section highlights the importance of porous metals. This section is followed by an overview of the different production processes used today. These are divided in two groups: additive and non-additive manufacturing processes. From the first group, selective laser melting and electron beam melting are treated in detail. From the second group, the production processes for Tritanium® and Trabecular Metal™ are explained. The third section gives an overview of the equations which govern the mechanical properties of porous metals. The importance and possibilities of finite element modelling are also considered in this chapter. Hereafter the standards available for testing of porous metals in medicine are described. In the fifth section the most important materials for (porous) orthopedic implants are reviewed. Although biodegradable porous metals are shortly touched in this section, the emphasis is on the bio-inert materials as these comprise the majority of porous implants used today. The sixth section concludes this chapter and points out some practical aspects which need to be considered in the design and production of a porous orthopedic implant.
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Acknowledgements
Karel Lietaert would like to acknowledge the support of the agency for Innovation by Science and Technology (IWT) of the Flemish government through Baekeland mandate ‘IWT140257’.
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Lietaert, K., Wauthle, R., Schrooten, J. (2018). Porous Metals in Orthopedics. In: Zivic, F., Affatato, S., Trajanovic, M., Schnabelrauch, M., Grujovic, N., Choy, K. (eds) Biomaterials in Clinical Practice . Springer, Cham. https://doi.org/10.1007/978-3-319-68025-5_10
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