Die Erfindung betrifft eine Vorrichtung zum Stabilisieren einer Wirbelsäule mit einer Hülse (10, 10, 10) zum Einbringen in einen Wirbelkörper (51, 52), welche in einem Abschnitt (11) ein Außengewinde (14) aufweist.The device has a casing (10) accommodated in a spine body, which comprises an external thread in a front section (11). The casing comprises an inner thread (16) with an inclination in which a screw is rotated. The casing comprises the front section, a middle section (12) and a rear section (13). The front section comprises the external thread, and a bracing element is arranged in the middle section. The middle section comprises openings in a form of slots, and the casing in the middle section is made of memory alloy i.e. nitinol.
