The patient, called "Milo", aged 26, lost the use of his right hand in a motorcycle accident a decade ago. After his stump heals in several weeks' time, he will be fitted with a bionic hand which will be controlled by nerve signals in his own arm.
"The operation will change my life. I live 10 years with this hand and it cannot be (made) better. The only way is to cut this down and I get a new arm," Milo told BBC News prior to his surgery at Vienna's General Hospital.