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. Author manuscript; available in PMC: 2009 Oct 1.
Published in final edited form as: Osteoarthritis Cartilage. 2008 Apr 18;16(10):1220–1227. doi: 10.1016/j.joca.2008.02.020

Figure 1.

Figure 1

(a) Migrating contact area (MCA) - femoral condyle against tibial plateau; (b) MCA - convex glass against tibial plateau; (c) Stationary contact area (SCA) – femoral condyle against flat glass; (d) SCA – cartilage plug against flat glass.