**Author details**

Nicole Gabriele Sommer, David Hahn, Begüm Okutan, Romy Marek and Annelie-Martina Weinberg\* Department of Orthopedics and Traumatology, Medical University of Graz, Graz, Austria

\*Address all correspondence to: annelie-martina.weinberg@medunigraz.at

© 2019 The Author(s). Licensee IntechOpen. This chapter is distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/ by/3.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
