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. Author manuscript; available in PMC: 2015 Dec 1.
Published in final edited form as: Magn Reson Imaging. 2014 Aug 8;32(10):1290–1296. doi: 10.1016/j.mri.2014.07.015

Figure 1.

Figure 1

The ICRS Outerbridge grading sheet. A total number of 49 sub-compartments were defined, with 9, 18, 18, and 4 sub-compartments defined in the patella, tibia, femoral condyle, and trochlea, respectively. The Outerbridge grading score was used to grade the cartilage in each defined sub-compartment.