dGEMRIC images of knees in an individual without evidence of radiographic osteoarthritis (Kellgren-Lawrence grade 0). (a) Before, (b) 3 months after, and (c) 1 year after meniscal repair surgery. The color scale shows values increasing from lower values (red-yellow range) to mid-high values (yellow-green range) over this time period. These images demonstrate the potential to show variations in cartilage molecular status even in regions of morphologically intact tissue and, as in this case, potentially monitor cartilage repair when relieved of trauma or with an intervention designed to improve the biomechanical status of the joint. dGEMRIC, delayed gadolinium-enhanced magnetic resonance imaging of cartilage.