1. Foot and Ankle Unit, Orthopaedic Department, Hospital Universitario de Canarias, Tenerife, Spain
2. School of Medicine, Universidad de La Laguna, Tenerife, Spain
3. Foot and Ankle Unit, Orthopaedic Department, Quirónsalud Hospital, Valencia, Spain
4. Hospital de Manises, Valencia, Spain
5. School of Medicine, Universidad Católica de Valencia San Vicente Mártir, Valencia, Spain
6. Foot and Ankle Unit, Hospital Universitario Virgen del Rocío, Sevilla, Spain
7. School of Medicine, Universidad de Sevilla, Spain