The Robotic Arm Interactive Orthopedics System has the feature of three-dimensional preoperative planning. During surgery, the robot system provides the surgeon with real-time visual, tactual and auditory feedback to facilitate optimum positioning of the implants that constitute the joint prostheses. It is this optimal placement that can make the patient feel a more natural joint after surgery. It is the surgeon who performs the surgery, and the robot prevents the surgeon from making mistakes.