Implant devices, and method of using the same, are provided. The implant devices have an articular end (105,10`) and a stem (110,110`), the stem having an oval-shaped cross-section. The articular end has an upper surface (115,115`), a side surface (120,12O`), and a lower surface (125,125`). The upper surface and lower surface each intersect the side surface. The upper surface has a first surface curvature (130,130`), a central surface curvature (135,135`), and a second surface curvature (140,140`). The stem extends from the lower surface in a direction away from the upper surface of the articular end.
