First and second intervertebral implants (20, 20', 20") each configured to be inserted into an intervertebral space, each of the first and second intervertebral implants comprising: a leading end and a trailing end, arranged such that the leading end is spaced from the trailing end in an insertion direction into the intervertebral space; an anterior side wall and a posterior side wall each extending between the leading end and the trailing end, wherein the anterior and posterior side walls are opposite each other along a lateral direction that is perpendicular to the insertion direction; and upper and lower endplates (37, 39) each made of Titanium or an alloy thereof and spaced from each other along a transverse direction that is perpendicular to each of the insertion direction and the lateral direction, each of the endplates defining a respective outer surface (38, 40) that is configured to abut respective superior and inferior vertebral bodies (24, 26) when the implant is disposed in the intervertebral space, wherein the anterior side wall of the first intervertebral implant has a height greater than that of the posterior side wall along the transverse direction, such that the upper and lower endplates (37, 39) of the first intervertebral implant define a first angle with respect to each other as they extend along the lateral direction, and each of the upper and lower endplates of the first intervertebral implant define respective thicknesses at the anterior side wall, and wherein the anterior side wall of the second intervertebral implant has a height greater than that of the posterior side wall along the transverse direction, such that the upper and lower endplates (37', 39') of the second intervertebral implant define a second angle with respect to each other as they extend along the lateral direction that is greater than the first angle, and each of the upper and lower endplates of the second intervertebral implant define respective thicknesses at the anterior side wall that are equal to the respective thicknesses of the upper and lower endplates (37, 39) of the first intervertebral implant at the anterior side wall. a leading end and a trailing end, arranged such that the leading end is spaced from the trailing end in an insertion direction into the intervertebral space; an anterior side wall and a posterior side wall each extending between the leading end and the trailing end, wherein the anterior and posterior side walls are opposite each other along a lateral direction that is perpendicular to the insertion direction; and upper and lower endplates (37, 39) each made of Titanium or an alloy thereof and spaced from each other along a transverse direction that is perpendicular to each of the insertion direction and the lateral direction, each of the endplates defining a respective outer surface (38, 40) that is configured to abut respective superior and inferior vertebral bodies (24, 26) when the implant is disposed in the intervertebral space, wherein the anterior side wall of the first intervertebral implant has a height greater than that of the posterior side wall along the transverse direction, such that the upper and lower endplates (37, 39) of the first intervertebral implant define a first angle with respect to each other as they extend along the lateral direction, and each of the upper and lower endplates of the first intervertebral implant define respective thicknesses at the anterior side wall, and wherein the anterior side wall of the second intervertebral implant has a height greater than that of the posterior side wall along the transverse direction, such that the upper and lower endplates (37', 39') of the second intervertebral implant define a second angle with respect to each other as they extend along the lateral direction that is greater than the first angle, and each of the upper and lower endplates of the second intervertebral implant define respective thicknesses at the anterior side wall that are equal to the respective thicknesses of the upper and lower endplates (37, 39) of the first intervertebral implant at the anterior side wall.