1. Department of Paediatric Orthopaedics and Spinal Surgery, Sheffield Children’s Hospital, Sheffield Children’s NHS Foundation Trust, Sheffield, UK
2. Department of Orthopaedics, Children’s Hospital, CHU de Toulouse, Toulouse, France
3. School of Medicine and Surgery, University of Milano-Bicocca, Monza, Italy
4. Transalpine Center of Pediatric Sports Medicine and Surgery, University of Milano-Bicocca, Monza, Italy
5. Orthopedic Department, Fondazione IRCCS San Gerardo dei Tintori, Monza, Italy
6. Department of Paediatric Orthopedic Surgery, Hospital Couple Enfant, Grenoble Alpes University, Grenoble, France
7. Department of Pediatric Orthopedics, Hospital for Special Surgery, New York, NY, USA