Patent ID: 8915922

Claim:
A pre-surgical planning method for performing a spherical osteotomy on a bone, the method comprising: obtaining a computerized tomography (CT) image of said bone; converting said image to a three-dimensional (3D) computerized format; utilizing said converted image and a computer to locate a plurality of axes within said image of said bone, each said axis being associated with a respective substantially linear region of said bone; identifying at least one center of correction within said bone, each said center of correction being located at an intersection of at least two of said axes; locating at least one element, having a surface configured as a portion of a sphere, on said converted image of said bone, an epicenter of said surface of said at least one element being located at a respective said center of correction; locating at least one sectioning region on said computerized image of said bone; said sectioning region being defined as an intersection of said surface of said at least one element and said computerized image of said bone; locating at least one bone sectioning region on said bone corresponding to said at least one sectioning region on said computerized image of said bone; and using an osteotomy device to section said bone along said at least one bone sectioning region.