Ishaan Swarup, Aaron Daluiski, Department of Orthopaedic Surgery, Hospital for Special Surgery, New York, NY 10021, United States
Yi Zhang, Huong Do, Healthcare Research Institute, Hospital for Special Surgery, New York, NY 10021, United States
Author contributions: Swarup I and Daluiski A designed this study, reviewed the data, and wrote the manuscript; Zhang Y and Do H extracted the data, performed data analysis, and assisted with manuscript preparation.
Institutional review board statement: This study was approved by the institutional review board of the Hospital for Special Surgery.
Informed consent statement: Not applicable (database study).
Conflict-of-interest statement: None of the authors have any relevant conflicts of interest related to this work.
Data sharing statement: No additional data are available.
STROBE statement: STROBE statement has been reviewed and adopted.
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: Aaron Daluiski, MD, Doctor, Department of Orthopaedic Surgery, Hospital for Special Surgery, 535 East 70th Street, New York, NY 10021, United States. firstname.lastname@example.org
Telephone: +1-212-6061284 Fax: +1-212-2888260
Received: June 5, 2019
Peer-review started: June 10, 2019
First decision: July 30, 2019
Revised: August 22, 2019
Accepted: September 15, 2019
Article in press: September 15, 2019
Published online: November 18, 2019