1. Center of Biological and Health Sciences, Department of Neurosurgery; University of the South of Santa Catarina (Unisul); Tubarão Brazil
2. Department of Orthopedic Surgery; Governador Celso Ramos Hospital; Florianópolis Santa Catarina Brazil
3. U.O. Chirurgia della Mano, Ospedale S.Giuseppe, Multimedica I.R.C.C.S; Università degli Studi di Milano; Italy
4. Vera Lehm Hand Clinics; Joinville Santa Catarina Brazil