Fit optimisation of a distal medial tibia plate

An iterative method for the fit optimisation of a pre-contoured fracture fixation plate for a given bone data set is presented. Both plate shape optimisation and plate fit quantification are conducted in a virtual environment utilising computer graphical methods and 3D bone and plate models. Two opt...

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Bibliographic Details
Published in:Computer methods in biomechanics and biomedical engineering 2011-04, Vol.14 (4), p.359-364
Main Authors: Schmutz, Beat, Wullschleger, Martin E., Noser, Hansrudi, Barry, Mark, Meek, John, Schütz, Michael A.
Format: Article
Language:English
Subjects:
3D models
Bone Plates
Computed tomography
Computer applications
Computers
Data processing
fit optimisation
fracture fixation
Fractures
Humans
periarticular plates
plate fit
Tibia
Tibial Fractures - surgery
Tomography, X-Ray Computed
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Summary:An iterative method for the fit optimisation of a pre-contoured fracture fixation plate for a given bone data set is presented. Both plate shape optimisation and plate fit quantification are conducted in a virtual environment utilising computer graphical methods and 3D bone and plate models. Two optimised shapes of the undersurface of an existing distal medial tibia plate were generated based on a dataset of 45 3D bone models reconstructed from computed tomography image data of Japanese tibiae. The existing plate shape achieved an anatomical fit on 13% of tibiae from the dataset. Modified plate 1 achieved an anatomical fit for 42% and modified plate 2 a fit for 67% of the bones. If either modified plate 1 or plate 2 is used, then the anatomical fit can be increased to 82% for the same dataset. Issues pertaining to any further improvement in plate fit/shape are discussed.
ISSN:1025-5842
1476-8259
DOI:10.1080/10255842.2010.482044