The invention relates to a modular kit for building a cage for spondylodesis,the kitcomprising at least two plates (1, 2), wherein the plates (1, 2) consist of abiocompatiblematerial and each comprise a planar structure (3) and a plurality of pins (4)projectingfrom the planar structure (3) of the plates (1 2), wherein the pins (4) eachcomprise atleast one latching element (5), wherein the pins (4) are elasticallydeformable and arearranged sufficiently close to each other on the planar structure (3) suchthat pressingplanar structures (3) studded with pins (4) of several plates (1, 2) onto eachothercauses the latching elements (5) of different plates (1, 2) to snap into eachother,wherein at least two of the at least two plates (1, 2) comprise a recess (9)with adiameter of at least 5 mm.The invention also relates to a method for building a cage for spondylodesiswith such akit, in which several plates (1, 2) are pressed against each other, whereinthe plates (1,2) snap into each other, thus forming the cage. Further, the invention relatesto a cagefor spondylodesis constructed of at least two plates (1, 2).
