1. Department of Orthopaedic Surgery and Traumatology, Hospital Universitario 12 de Octubre, Madrid, Spain
2. Surgery Department, Universidad Complutense, Madrid, Spain
3. Department of Orthopaedic Surgery and Traumatology, Hospital Vithas La Milagrosa, Madrid, Spain
4. Department of Orthopaedic Surgery and Traumatology, Hospital Viamed Santa Elena, Madrid, Spain
5. Department of Radiology, Hospital Universitario 12 de Octubre, Madrid, Spain