A disc implant, comprising: a first intervertebral element (12) defining a first inner face (40), which includes a first central region (44) and a first outer face； and a second intervertebral element (14) defining a second inner face (42), which includes a second central region (62) and a second outer face (20)； in which the first inner face and the second inner face include structural features that define an articulation geometry characterized, at least partially, by medial-lateral and anteroposterior profiles that are not equal, in which the first central region (44) defines a first profile (92) in the medial-lateral direction, which is defined by a single arch, and a second profile (94) in the antero-posterior direction that is composed of at least two arches, and in which the second central region (62) defines a first profile (96) in the medial-lateral direction, which is defined by a single arc, and a second profile (98) in the antero-posterior direction that is composed of a line； wherein the first and second intervertebral elements further comprise a first wing that extends laterally in a first direction with respect to the central region and a second wing that extends laterally in a second direction with respect to the central region； in which cooperating structures are defined in the respective wings of the first and second intervertebral elements, which accommodate the relative movement between the first and second intervertebral elements.Un implante de disco, que comprende: un primer elemento intervertebral (12) que define una primera cara interior (40), que incluye una primera región central (44) y una primera cara exterior； y un segundo elemento intervertebral (14) que define una segunda cara interior (42), que incluye una segunda región central (62) y una segunda cara exterior (20)； en el que la primera cara interior y la segunda cara interior incluyen características estructurales que definen una geometría de articulación caracterizada, al menos parc
