A system for sizing a prosthetic implant within a knee joint, the system comprising a femoral portion couplable to a distal end of a femur a tibial portion couplable to a proximal end of a tibia a sensor housing couplable to or integrated with the femoral portion or the tibial portion and including one or more force or pressure sensors, the one or more sensors configured to measure a force or a pressure produced within the knee joint, the force or pressure generated, at least in part, by soft tissue adjacent to the knee joint and a plurality of shims configured to engage the femoral portion or the tibial portion and adjust the force or pressure produced, at least in part, by the soft tissue adjacent to the knee joint.
