1. Department of Orthopedics Foot and Ankle Surgery, Hospital do Servidor Municipal de São Paulo (HSPM), 60 Castro Alves Street, Aclimação, CEP: 01532-000 São Paulo, SP, Brazil
2. Department of Orthopaedic Surgery, Hospital Israelita Albert Einstein, 627 Albert Einstein Avenue Jardim Leonor, CEP: 05652-900 São Paulo, SP, Brazil
3. Department of Orthopedics Foot and Ankle Surgery, Medstar Union Memorial Hospital, 33rd Street Building, 200 E 33rd ST#501, Baltimore, MD, USA