A. Hosseini, S. K. Van de Velde, M. Kozanek, T. J. Gill, A. J

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General Information Osteoarthritis and Cartilage

Tibial cartilage creep during weight bearing: in vivo 3D CT assessment

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In-vivo time-dependent articular cartilage contact behavior of the tibiofemoral joint A. Hosseini, S.K. Van de Velde, M. Kozanek, T.J. Gill, A.J. Grodzinsky, H.E. Rubash, G. Li Osteoarthritis and Cartilage Volume 18, Issue 7, Pages 909-916 (July 2010) DOI: 10.1016/j.joca.2010.04.011 Copyright © 2010 Osteoarthritis Research Society International Terms and Conditions

Fig. 1 (A) A three-dimensional (3D) knee model constructed using the series of MR images of a subject’s knee. (B) Schematic of the DFIS. Osteoarthritis and Cartilage 2010 18, 909-916DOI: (10.1016/j.joca.2010.04.011) Copyright © 2010 Osteoarthritis Research Society International Terms and Conditions

Fig. 2 Reproduction of kinematics of the tested knee joint in a virtual DFIS. Each bony model was individually matched with corresponding fluoroscopic images, viewed from two different directions. Osteoarthritis and Cartilage 2010 18, 909-916DOI: (10.1016/j.joca.2010.04.011) Copyright © 2010 Osteoarthritis Research Society International Terms and Conditions

Fig. 3 Patterns of contact deformation in the tibiofemoral cartilage: (A) Medial compartment: contact is occurring on the concave (conforming) surface of medial tibial cartilage, (B) Lateral compartment: contact is occurring on the convex surface of lateral tibial cartilage. Osteoarthritis and Cartilage 2010 18, 909-916DOI: (10.1016/j.joca.2010.04.011) Copyright © 2010 Osteoarthritis Research Society International Terms and Conditions

Fig. 4 (A) The variation of the peak cartilage contact deformation over time (mean±SD) and the corresponding ground reaction force (normalized for body weight). (B) Mean values of the rate of change of the peak cartilage deformation in tibial compartments. Osteoarthritis and Cartilage 2010 18, 909-916DOI: (10.1016/j.joca.2010.04.011) Copyright © 2010 Osteoarthritis Research Society International Terms and Conditions

Fig. 5 (A) The variation of cartilage contact area over time (mean±SD) and the corresponding ground reaction force (normalized for body weight). (B) Mean values of the rate of change of the cartilage contact area in tibial compartments. Osteoarthritis and Cartilage 2010 18, 909-916DOI: (10.1016/j.joca.2010.04.011) Copyright © 2010 Osteoarthritis Research Society International Terms and Conditions

Fig. 6 Contours of contact deformation distribution of a typical subject in the course of time in the sagittal cross-sections (dashed lines) in medial and lateral compartments. Osteoarthritis and Cartilage 2010 18, 909-916DOI: (10.1016/j.joca.2010.04.011) Copyright © 2010 Osteoarthritis Research Society International Terms and Conditions