Fig. 3

3D maps of articular cartilage contact strain and T2* relaxation time. a Articular cartilage contact strain was defined as the ratio between the undeformed articular cartilage thickness and the thickness of the overlapping areas between the scapular and humeral articular cartilage. b The T2* relaxation time of each pixel in the MR images was calculated and each articular cartilage surface was divided into multiple anterior-to-posterior 20° regions