1. Foot and Ankle Clinic, UNIFESP–Federal University of São Paulo, Escola Paulista de Medicina, São Paulo, SP, Brazil
2. St Alphonsus Foot and Ankle Clinic, Boise, ID, USA
3. Foot and Ankle Surgeon, Felício Rocho Hospital, Belo Horizonte, MG, Brazil
4. UNIFESP–Escola Paulista de Medicina, São Paulo, SP, Brazil