Kit for building a cage for spondylodesis and method therefor

A modular kit for building a cage for spondylodesis, the kit comprising at least two plates, wherein each plate of the at least two plates consists of a biocompatible material and comprises a planar structure and a plurality of pins projecting from the planar structure, wherein the at least two plates are formed in a shape of a ring, an elliptical ring, or two rings that lie in contact with each other, wherein the planar structure of each plate of the at least two plates is formed by a plate-like base body having a height defined between a first side and an opposing second side of the plate-like base body and an outer edge defining the shape of the at least two plates, wherein each pin of the plurality of pins comprises at least one latching element and is elastically deformable and bendable between the planar structure and at least one latching element, wherein the plurality of pins is arranged sufficiently close to each other on the planar structure such that pressing the planar structures of the at least two plates onto each other causes the latching elements of different plates of the at least two plates to snap into each other to build the cage, wherein each plate of the at least two plates comprises recesses extending through the height of the plate-like base body from the first side to the opposing second side of the plate-like base body and having perimeters surrounded by inner edges of the plate-like base body such that, when the at least two plates snap into each other to build the cage, the cage comprises two open axial hollow chambers formed by the recesses of each plate.