1 Department of Radiology, Section of Musculoskeletal Radiology, Penn Medicine University City, Philadelphia, PA, USA.
2 MSK Radiology, Hospital Universitario Nuestra Señora De La Candelaria, Tenerife, España.
3 Department of Orthopedic Surgery, Division of Foot and Ankle Surgery, Penn Musculoskeletal Center-Penn Medicine University City, Philadelphia, PA, USA.