1. Department of Radiology, Diagnóstico Médico Cantabria, Santander, Cantabria, Spain.
2. Department of Radiology, Hospital Universitario Virgen de la Arrixaca, Murcia, Spain.
3. Department of Radiology, Hospital Universitario Márqués de Valdecilla, Santander, Spain.
4. Hospital de la Ribera, Alzira, Spain.
5. Centro Diagnóstico Rossi, Buenos Aires, Argentina.
6. Departamento de Anatomía, Universidad de Barcelona, Barcelona, Spain.
7. Department of Arthroscopic Surgery, Hospital Mutua Montañesa, Santander, Spain.