1Department of Orthopaedics and Traumatology, Kantonsspital St. Gallen, St. Gallen, Switzerland
2Hospital for Special Surgery, New York, NY
3Rush University Medical Center, Chicago, Illinois
E-mail address for C.C. Egidy: firstname.lastname@example.org
Investigation performed at Kantonsspital St. Gallen, St. Gallen, Switzerland
Disclosure: No external funds were received in support of this work. On the Disclosure of Potential Conflicts of Interest forms, which are provided with the online version of the article, one or more of the authors checked “yes” to indicate that the author had a relevant financial relationship in the biomedical arena outside the submitted work and “yes” to indicate that the author had a patent and/or copyright, planned, pending, or issued, broadly relevant to this work (http://links.lww.com/JBJSREV/A447).