vertebral body this principle is realized also in the embodiment of an intervertebral implant such as is shown in fig4 to 7 in this embodiment rod shaped feet 7 are embedded in the core 2 at right angles to the upper side thereof and carry on their free end a spherically widened portion 8 the feet 7 project slightly from the core 2 and form there an annular and eye shaped portion 9 from which at the opposite end to the foot 7 a connecting rod 10 protrudes and runs into the underside of a locating plate 11 in the embodiment shown in fig4 to 7 the locating plates 11 have the shape of a cuboid the locating plates 11 in the non swollen state of the core 2 lying close together without forming a gap in a single plane extending parallel to the upper side of the core 2 the locating plates 11 jointly forming a vertebral body locating face the foot 7 with the widened portion 8 the eye shaped portion 9 and the connecting rod 39 10 correspond to the support element 5 in the embodiment of fig1 to 3 while the locating plates 11 correspond to the locating element 6 when the material of the core 2 absorbs liquid and swells the core 2 expands laterally so that.