Mark E Rogers1, Jason A Lowe2, Sean C Vanlandingham3. 1. Division of Orthopaedic Surgery, University of Alabama at Birmingham, 1313 13th Street South, Birmingham, AL 35205, United States. Electronic address: merogers@uabmc.edu. 2. Division of Orthopaedic Surgery, University of Alabama at Birmingham, 1313 13th Street South, Birmingham, AL 35205, United States. Electronic address: jasonlowe@uabmc.edu. 3. University of Alabama School of Medicine, Volker Hall - 100, 1720 2nd Avenue South, Birmingham, AL 35294, United States. Electronic address: svanland@uab.edu.