Knee implants, prosthesis systems, prosthesis kits and related surgical methods including a femoral implant system is provided. The femoral implant system comprises at least one condylar component comprising medial condyle articular surface portion, a lateral condyle articular surface portion, and an intercondylar notch between the medial and lateral condyle articular surface portions. The femoral implant system also comprises a plurality of modular trochlea components each comprising an articular surface with a differing trochlea groove. The at least one condylar component and the plurality of modular trochlea components are separate components. One condylar component and one modular trochlea component are configured to be implanted into a distal end portion of a femur and cooperate to form replacement articulation surfaces of the femur that substantially replicate a native articular surface portion of the distal end portion of the femur.
