Intermediate body (3; 60) for a bone implant for the replacement of a bone area, with - a base body (4), - a housing (13), which extends into the base body (4) in the direction axially and in this sense, it is formed in an enveloping manner by a wall (11) of the base body (4) and configured to surroundly enclose an end section (14) of an intramedullary implant piece (1), and - a clamping device associated with the housing (13), the clamping device being formed with several clamping components (20), which are arranged in the wall (11) that surrounds the housing (13) of the base body (4) and which can move independently of each other or at least in part together to secure the end section (14) introduced in advance in the housing (13) in relation to the wall (11) of the base body (4), which wraps then the housing (13) and the end section (14) introduced, to a position clamping n, that is to the housing (13) and, in this sense, holding the end section (14) in the housing (13), characterized in that the various clamping components (20) can be moved by means of screws ( 7; 23) to the clamping position and form an arrangement that extends in the axial direction of the base body (4) of 20 clamping elements.Cuerpo (3; 60) intermedio para un implante óseo para la sustitución de una zona ósea, con - un cuerpo (4) de base, - un alojamiento (13), que se extiende en el cuerpo (4) de base en la dirección axial y en este sentido, está formado de manera envolvente por una pared (11) del cuerpo (4) de base y configurado para alojar de manera envolvente una sección (14) de extremo de una pieza (1) de implante intramedular, y - un dispositivo de sujeción asociado al alojamiento (13), estando formado el dispositivo de sujeción con varios componentes (20) de sujeción, que están dispuestos en la pared (11) que envuelve el alojamiento (13) del cuerpo (4) de base y que pueden desplazarse independientemente entre sí o al menos en parte conjuntamente para la sujeción de la sección (14) de ext