1. A knee prosthesis, comprising: a femoral component configured to replace a distal portion of a femur, the femoral component comprising a first portion; and a tibial component configured to replace at least part of a proximal portion of a tibia, the tibial component including a first raised articulation feature disposed at a first posterior edge of the tibial component, wherein the first articulation feature comprises a proximal-most portion with a first articulation surface disposed posterior to the proximal-most portion, and wherein such first articulation surface is configured to articulate with the first portion of the femoral component.