1. Orthopaedic and Traumatology Department, Institute of Orthopedics “Carlos E. Ottolenghi,” Hospital Italiano de Buenos Aires, Buenos Aires, Argentina
2. Department of Orthopaedic Surgery, School of Medicine, Showa University Hospital, Tokyo, Japan
3. III Normal Anatomy Department, School of Medicine, University of Buenos Aires, Buenos Aires, Argentina
4. Intraoperative Monitoring, Pediatric Neurology Department, Hospital Italiano de Buenos Aires, Buenos Aires, Argentina