Computer-assisted surgery planner and intra-operative guidance system

A system for facilitating an implant position for at least one artificial component in one of a hip joint, a knee joint, a hand and wrist joint, an elbow joint, a shoulder joint, and a foot and ankle joint, comprising:

• a computer system including;
• a pre-operative geometric planner;
• and
• a pre-operative kinematic biomechanical simulator in communication with said pre-operative geometric planner wherein pre-operative geometric planner outputs at least one geometric model of the joint and the pre-operative kinematic biomechanical simulator outputs a position for implantation of the artificial component;
• and
• a tracking device in communication with said computer system.

A computerized method of facilitating the implantation of an artificial implant in one of a hip joint, a knee joint, a hand and wrist joint, an elbow joint, a shoulder joint, and a foot and ankle joint, comprising:

• creating a three dimensional bone model based on skeletal geometric data of a bone and a bony cavity into which the artificial implant is to be implanted;
• creating a three dimensional component model of the artificial implant;
• simulating movement of the joint with the artificial implant in a test position;
• calculating a range of motion of the artificial implant and the bones comprising the joint for the test position based on the simulated movement;
• determining an implant position based on a predetermined range of motion and the calculated range of motion;
• identifying the implant position in the bone model;
• aligning the bone model with the patient's bone and placing the implant based on positional tracking data providing the position of the implant and the bone;
• and
• tracking the implant and the bone to maintain alignment of the bone model and to determine the position of the implant relative to the bone.