Vincent J Rossi, Junyoung Ahn, Daniel D Bohl, Ehsan Tabaraee, Kern Singh, Department of Orthopaedic Surgery, Rush University Medical Center, Chicago, IL 60612, United States
Author contributions: All authors made significant contributions toward the preparation of this manuscript.
Conflict-of-interest: Author Kern Singh has received fees for serving as a consultant for DePuy, Zimmer, Stryker and Globus, royalties from Zimmer, Stryker, Pioneer, Lippincott, Thieme, Jaypee Publishing, and Slack Publishing, and as a board member for Vital 5 LLC, TruVue Surgical, Avaz, and Bijali. The other authors have nothing 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/
Correspondence to: Kern Singh, MD, Associate Professor, Department of Orthopaedic Surgery, Rush University Medical Center, 1611 W. Harrison St., Suite #300, Chicago, IL 60612, United States. email@example.com
Telephone: +1-312-4322373 Fax: +1-708-4925373
Received: March 6, 2015
Peer-review started: March 8, 2015
First decision: April 10, 2015
Revised: April 22, 2015
Accepted: May 7, 2015
Article in press: May 8, 2015
Published online: June 18, 2015