**Author details**

Miguel Bautista Royo-Salvador, Marco Fiallos-Rivera and Horia Salca\* Institute Chiari and Syringomyelia and Scoliosis of Barcelona, Spain

\*Address all correspondence to: hsalca@institutchiaribcn.com

© 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.
