Method and system of automatic determination of geometric elements characterizing a bone deformation from 3D image

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United States of America Patent

PATENT NO 9183629
APP PUB NO 20150049928A1
SERIAL NO

14466769

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Abstract

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The invention relates to a method for automatically determining, on a bone comprising a head portion contiguous to a neck portion, parameters for characterizing a bump deformation on the head-neck junction of the bone from acquired 3D medical image, the method comprising the following steps: i) constructing a 3D surface model of the bone; ii) fitting a sphere on the spherical portion of the head of the bone; iii) determining a neck axis characterizing the neck portion of the bone; iv) determining from the fitted sphere and the neck axis, a clock face referential on the head of the bone rotating around the neck axis; v) determining a 3D curve on the 3D surface model characterizing the head-neck junction of the bone; vi) determining, from the 3D curve, the summit of the bump deformation of the head-neck junction of the bone; vii) determining, from said summit of the bump deformation, first and a second parameters (α3D, iMax) characterizing the maximum bump deformation of the head-neck junction of the bone.

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Patent Owner(s)

Patent OwnerAddress
SMITH & NEPHEW ORTHOPAEDICS AGTHEILERSTRASSE 1A ZUG 6300

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Byrd, Thomas Nashville, US 7 102
Chabanas, Laurence Saint-Pierre-d'Allevard, FR 14 207
Kelly, Bryan Talmadge Riverside, US 5 68
Larson, Christopher Edina, US 44 662
Lavallee, Stéphane St Martin d'Uriage, FR 42 831
Tonetti, Jérôme Grenoble, FR 2 16

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