[Proximal amputation injuries of the thumb including the radial half of the hand. Case reports].

The primary treatment of proximal amputations of the thumb and radial half of the hand is of particular importance, if the primary functions of a basic hand are to be restored. It is of utmost importance, that such treatment be carried out by a highly experienced reconstructive surgeon, since the transplantation or transposition of blood vessels, nerves, tendons and skin and soft-tissue flaps may be necessary. Five case reports illustrate the fundamental principles of primary and secondary reconstruction of the hand.