The invention relates to a vertebral body placeholder comprising a cylindrical inner body (14), which can be inserted in a telescopic manner into a coaxially arranged, sleeve-shaped outer body (16). The aim of the invention is to create a vertebral body placeholder that does not unwantedly penetrate spongy vertebrae. To this end, a cap (20, 22) is placed on a face of the inner body (14) and/or on a face of the outer body (16).