Method of planning and performing a spherical osteotomy using the 3-dimensional center of rotation of angulation (CORA)
US8915922B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 6, 2012 |
| Grant date | Dec 23, 2014 |
| Priority date | — |
| Expiry date | Apr 11, 2033 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B2034/105
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A pre-surgical planning method for performing a spherical osteotomy for the surgical sectioning of a bone includes obtaining a CT scan of a bone. Subsequently manipulating the scan into a three-dimensional CAD format. Utilizing the scan to identify one or more centers of bone correction or 3D CORAs. A surface, configured in the shape of a portion of a sphere, e.g., a semisphere, is then superimposed on the computer representation of the bone. The center of the surface is positioned at a respective center of bone correction. The intersection of the surface and the bone defines a sectioning surface along which the bone is to be cut. Simulating a sectioning of the bone along the sectioning surface and the subsequent realignment of the bone in an optimal configuration using the computer is then performed. The computer simulation is then utilized as a guide for actually sectioning the bone.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.