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A METHOD FOR DETERMINING ARTICULAR BONE DEFORMITY RESECTION USING MOTION PATTERNS
专利权人:
发明人:
CHABANAS LAURENCE,LAVALLEE STéPHANE,TONETTI JÉRÔME,BYRD THOMAS,KELLY BRYAN TALMADGE,LARSON CHRISTOPHER
申请号:
IN83/DELNP/2013
公开号:
IN2013DN00083A
申请日:
2013.01.03
申请国别(地区):
IN
年份:
2014
代理人:
摘要:
The invention relates to a method for real time determination an optimal corrected surface of a first bone and/or a second bone forming together an articulation the first and/or second bones presenting an overgrowth deformation said corrected surface providing a greater range of motion of the articulation the method comprising the following steps: i) constructing from acquired images of the articulation 3D voxel models of the first bone and the second bone ii) for each of first and second bone voxel models constructing a coordinate system defined by a center and three axes iii) applying a motion pattern on the coordinate system of the second bone with respect to the coordinate system of the first bone a motion pattern being a set of contiguous positions of the first or second bone coordinate systems with respect to the other bone coordinate system the contiguous positions defining a movement of one bone with respect to the other wherein said motion pattern is initially loaded from a data base of predefined motion patterns iv) determining a resection volume from said motion pattern as being the union of interpenetration volumes of the first or second bone voxel model with the other bone voxel model for each position of the motion pattern v) determining the optimal corrected surface by virtually removing said resection volume from the first and/or the second bone voxel model.
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