The ornamental design for a wedge-shaped implant having ridges, as shown and described.
FIG. 1 is an isometric view of a wedge-shaped implant having ridges according to a fourth embodiment;
FIG. 2 is a top plan view thereof;
FIG. 3 is a front elevation view thereof;
FIG. 4 is a rear elevation view thereof;
FIG. 5 is an elevation view thereof taken from the right side;
FIG. 6 is an elevation view thereof taken from the left side; and,
FIG. 7 is a bottom plan view thereof.
The broken line showing of the wedge-shaped implant having ridges is for the purpose of illustrating portions of the wedge-shaped implant having ridges and forms no part of the claimed design.