The invention relates to a kit, consisting of an implant and at least one additional element selected from the group consisting of an adapter, anvil, tool and countersink, wherein the implant has a substantially cylindrical shape and comprises, in the longitudinal direction, three subregions each having variable geometric dimensions: a) a threaded region, b) a thread-free application region having an axial channel with radial through-openings, c) a head region as a tool attachment point for the insertion of the implant, the head region being provided with a point of access to the axial channel for the supplying of active substances and discharge via the radial through-openings, and the at least one additional element being specifically designed to cooperate with the custom implant and/or with one of the additional elements.