1. Department of Orthopedics, University Health—Lakewood Medical Center , Kansas City, Missouri
2. Department of Physical Medicine and Rehabilitation, Vanderbilt University Medical Center , Nashville, Tennessee
3. Department of Physical Medicine and Rehabilitation, University of Missouri, Columbia , Columbia, Missouri
4. Department of Physical Medicine and Rehabilitation, Orthopedic Partners , North Franklin, Connecticut
5. Department of Radiology, Vanderbilt University Medical Center , Nashville, Tennessee, USA