Omer Ozel, Emre Demircay, Department of Orthopedic Surgery, Baskent University, 34662 Istanbul, Turkey
Author contributions: All the authors contributed to this paper.
Conflict-of-interest statement: All authors declare that they have no conflict of interest.
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Correspondence to: Emre Demircay, Associate Professor, Department of Orthopedic Surgery, Baskent University, Oymaci Sokak No: 7 Altunizade, 34662 Istanbul, Turkey. firstname.lastname@example.org
Telephone: +90-216-5541500 Fax: +90-216-6519746
Received: June 4, 2015
Peer-review started: June 5, 2015
First decision: July 6, 2015
Revised: October 7, 2015
Accepted: November 3, 2015
Article in press: November 4, 2015
Published online: January 18, 2016