Patent ID: 8768437
Filing Date: 2014-07-01
Classification: A61B

Abstract:
1. A method of performing an image guided surgery on an anatomy, comprising: obtaining image data of a region of the anatomy including a bone portion and a pelvis of the anatomy, wherein obtaining image data includes obtaining a first fluoroscopic two-dimensional x-ray image and a second fluoroscopic two-dimensional x-ray image that is at an angle to the first fluoroscopic x-ray image; attaching a reference bar to the pelvis, wherein the pelvis defines a first portion of a joint; selecting a bone portion separate and different from the pelvis in the anatomy and defining a second portion of the joint, wherein the reference bar is not inserted into the bone portion; placing only a single registration pin in the selected bone portion; registering the obtained image data to the selected bone portion with the single registration pin and the outline of the bone portion in the first fluoroscopic two-dimensional x-ray image and the second fluoroscopic two-dimensional x-ray image; tracking the reference bar to determine a location of the pelvis; tracking and guiding an instrument with a tracking device to determine a location of the instrument relative to the reference bar attached to the pelvis; and while tracking and guiding the instrument, performing a procedure with the instrument on the bone portion that is separate and different from the pelvis to which the reference bar is attached, wherein the procedure includes fusing a first segment of the bone portion and a second segment of the bone portion wherein at least one of the first segment or the second segment form the joint with the pelvis; calculating a plane in which the pelvis lies in relation to the reference bar; wherein registering the obtained image data to the selected bone portion further includes using a spherical femoral head to increase registration accuracy.