A method for performing arthroplasty on a joint using a surgical navigation system, the method includes the steps of locating articular anatomical structures using the surgical navigation system; determining biomechanical properties of the joint; and evaluating the soft tissue envelope properties for the joint. The method also includes the steps of displaying an interactive view of the joint, the soft tissue envelope properties, the biomechanical properties and a chosen implant to enable a surgeon to manipulate simultaneously the soft tissue envelope properties, the biomechanical properties and the chosen implant on the interactive view; preparing the joint to receive the chosen implants; and installing the implants in the prepared joint.