1. Department of Orthopedics, Regina Montis Regalis Hospital, 12084 Mondovì, Italy
2. Department of Orthopedics, Lenval University Children’s Hospital, 06200 Nice, France
3. Laboratoire Motricité Humaine Expertise Sport Santé, Unité de Formation et Recherche Sciences et Techniques des Activités Physiques et Sportives, 06205 Nice, France