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Statistical shape modeling describes variation in tibia and femur surface geometry between Control and Incidence groups from the Osteoarthritis Initiative.

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Presentation on theme: "Statistical shape modeling describes variation in tibia and femur surface geometry between Control and Incidence groups from the Osteoarthritis Initiative."— Presentation transcript:

1 Statistical shape modeling describes variation in tibia and femur surface geometry between Control and Incidence groups from the Osteoarthritis Initiative database  Todd L. Bredbenner, Travis D. Eliason, Ryan S. Potter, Robert L. Mason, Lorena M. Havill, Daniel P. Nicolella  Journal of Biomechanics  Volume 43, Issue 9, Pages (June 2010) DOI: /j.jbiomech Copyright © 2010 Elsevier Ltd Terms and Conditions

2 Fig. 1 Frontal view of the proximal tibia demonstrating positioning of the transection plane. Journal of Biomechanics  , DOI: ( /j.jbiomech ) Copyright © 2010 Elsevier Ltd Terms and Conditions

3 Fig. 2 Frontal view of the distal femur demonstrating positioning of the transection plane. Journal of Biomechanics  , DOI: ( /j.jbiomech ) Copyright © 2010 Elsevier Ltd Terms and Conditions

4 Fig. 3 Pointwise differences in average tibia surface geometry between Control and Incidence groups. (Left: antero-medial view, right: articular surface view.) Journal of Biomechanics  , DOI: ( /j.jbiomech ) Copyright © 2010 Elsevier Ltd Terms and Conditions

5 Fig. 4 Cumulative total geometry variance explained by principal modes of the tibia SSM. Journal of Biomechanics  , DOI: ( /j.jbiomech ) Copyright © 2010 Elsevier Ltd Terms and Conditions

6 Fig. 5 Pointwise differences in surface geometry between the average control tibia and the surface generated using the average tibia mode 15 weighting factor for the incidence group. (Left: antero-medial view, right: articular surface view.) Journal of Biomechanics  , DOI: ( /j.jbiomech ) Copyright © 2010 Elsevier Ltd Terms and Conditions

7 Fig. 6 Pointwise differences in surface geometry between the average control tibia and the surface generated using the average tibia modes 2, 8, 10, 15, and 21 weighting factors for the Incidence group. (Left: antero-medial view, right: articular surface view.) Journal of Biomechanics  , DOI: ( /j.jbiomech ) Copyright © 2010 Elsevier Ltd Terms and Conditions

8 Fig. 7 Pointwise differences in average femur surface geometry between Control and Incidence groups. (Left: antero-medial view, right: articular surface view.) Journal of Biomechanics  , DOI: ( /j.jbiomech ) Copyright © 2010 Elsevier Ltd Terms and Conditions

9 Fig. 8 Cumulative total geometry variance explained by principal modes of the femur SSM. Journal of Biomechanics  , DOI: ( /j.jbiomech ) Copyright © 2010 Elsevier Ltd Terms and Conditions

10 Fig. 9 Pointwise differences in surface geometry between the average control femur and the surface generated using the average femur mode 9 weighting factor for the Incidence group. (Left: antero-medial view, right: articular surface view.) Journal of Biomechanics  , DOI: ( /j.jbiomech ) Copyright © 2010 Elsevier Ltd Terms and Conditions

11 Fig. 10 Pointwise differences in surface geometry between the average control femur and the surface generated using the average femur mode 11 weighting factor for the Incidence group. (Left: antero-medial view, right: articular surface view.) Journal of Biomechanics  , DOI: ( /j.jbiomech ) Copyright © 2010 Elsevier Ltd Terms and Conditions

12 Fig. 11 Pointwise differences in surface geometry between the average control femur and the surface generated using the average femur modes 9 and 11 weighting factors for the Incidence group. (Left: antero-medial view, right: articular surface view.) Journal of Biomechanics  , DOI: ( /j.jbiomech ) Copyright © 2010 Elsevier Ltd Terms and Conditions

13 Fig. 12 Pointwise differences in surface geometry between the average control femur and the surface generated using the average femur modes 1, 9, 11, 12, and 20 weighting factors for the Incidence group. (Left: antero-medial view, right: articular surface view.) Journal of Biomechanics  , DOI: ( /j.jbiomech ) Copyright © 2010 Elsevier Ltd Terms and Conditions

14 Fig. 13 Pointwise differences in average knee joint space between Control and Incidence groups. Journal of Biomechanics  , DOI: ( /j.jbiomech ) Copyright © 2010 Elsevier Ltd Terms and Conditions

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