From the Department of Orthopaedics, Yale University School of Medicine, New Haven CT (Wiznia), Corpus Christi Medical Center, Corpus Christi, TX (Santos), and W. Montague Cobb/NMA Health Institute, Washington, DC (Morgan).

None of the following authors or any immediate family member has received anything of value from or has stock or stock options held in a commercial company or institution related directly or indirectly to the subject of this article: Wiznia, Santos, and Morgan.