Maristella F Saccomanno, Giuseppe Sircana, Giulia Masci, Gianpiero Cazzato, Michela Florio, Luigi Capasso, Marco Passiatore, Giovanni Autore, Giulio Maccauro, Enrico Pola, Department of Orthopaedics and Traumatology, Fondazione Policlinico Universitario A. Gemelli IRCCS, Rome 00168, Italy
Author contributions: All authors contributed equally to this paper with conception and design of the study, literature review and analysis, drafting, critical revision and editing of the manuscript, and in giving approval of the final version.
Conflict-of-interest statement: The authors have no conflicts of interest to disclose.
Open-Access: This article is an open-access article which was selected by an in-house editor and fully peer-reviewed by external reviewers. It is distributed in accordance with the Creative Commons Attribution Non Commercial (CC BY-NC 4.0) license, which permits others to distribute, remix, adapt, build upon this work non-commercially, and license their derivative works on different terms, provided the original work is properly cited and the use is non-commercial. See: http://creativecommons.org/licenses/by-nc/4.0/
Corresponding author: Enrico Pola, MD, PhD, Associate Professor, Department of Orthopaedics and Traumatology, Fondazione Policlinico Universitario A. Gemelli IRCCS, L.go Agostino Gemelli, 8, Rome 00168, Italy. email@example.com
Telephone: +39-06-30154326 Fax: +39-06-3051161
Received: October 7, 2018
Peer-review started: October 7, 2018
First decision: October 19, 2018
Revised: December 26, 2018
Accepted: January 5, 2019
Article in press: January 6, 2019
Published online: February 18, 2019