A knee replacement system including a first tibial baseplate, a second tibial baseplate, and an intercondylar bridge member. Each one of the first and second tibial baseplates includes a bone engaging surface and a bearing engaging surface opposite to the bone engaging surface. Each one of the first and second tibial baseplates also includes a first baseplate coupling portion and a second baseplate coupling portion. The first baseplate coupling portion is configured to couple with the intercondylar bridge member for coupling the second tibial baseplate to the first tibial baseplate. The second baseplate coupling portion is configured to couple an insert to the first and second tibial baseplates.