Patent ID: 8165659

Claim:
A method of modeling a bone during a surgical navigation procedure, comprising: providing a tracking system and a modeling instrument detectable by the tracking system; acquiring up to nine predefined points from a bone with the modeling instrument, the acquired points being used to generate a representative model of the bone; associating the representative model of the bone with a reference bone model from a computer database associated with the tracking system; warping the reference bone model to at least coincide with the representative model of the bone at the locations of the acquired predefined points; displaying a three-dimensional and manipulatable image of the warped reference bone model, the image showing the acquired predefined points; intra-operatively manipulating the image of the warped reference bone model to calculate a bone cut or to determine surgical information for performing the surgical procedure, the surgical information including gap analysis data, resection plane details and bone alignment angles; and wherein the displayed warped reference bone model accurately represents the location of the patient's bone in real time in at least the locations of the acquired predefined points.