[1] Foot & Ankle Surg Grp, Orthopaed & Traumatol Unit, Sao Paulo, SP, Brazil
[2] Hosp Santa Luzia Rede D Or, Dept Orthopaed & Traumatol, Brasilia, Brazil
[3] State Univ Campinas UNICAMP, Dept Orthopaed, Campinas, SP, Brazil
[4] State Univ Campinas UNICAMP, Traumatol Unit, Campinas, SP, Brazil
[5] Guys & St Thomas NHS Fdn Trust, London, England
[6] Orthopaed & Arthrit Specialist Ctr, Sydney, Australia
[7] Head Foot & Ankle Surg Grp, Orthopaed & Traumatol Unit, Sao Paulo, Brazil
[8] Minimally Invas Foot Ankle Soc MIFAS GRECMIP, Brasilia, Brazil
[9] Inst Vita, Sao Paulo, Brazil