Additional credits

 First edition
First edition

Prof. Dr. Luiz Vialle (General Editor)
Department of Orthopedics- Spine Unit
Catholic University
Curitiba, Brazil

Prof. Dr. Carlo Bellabarba  
Departments of Orthopedic and Neurological Surgery
University of Washington, Harborview Medical Center
Seattle, USA

Dr. Marcelo Gruenberg
Departement of Orthopaedics 
Hospital Italiano 
Capital Federal, Argentina

Prof. Dr. Cumhur Oner
Departement of Orthopedic Surgery
UMC Utrecht
Utrecht, Netherlands

Illustrator: Michele Haller
Project manager: Lars Veum