Fig. 2From: Structural effects of intra-articular TGF-β1 in moderate to advanced knee osteoarthritis: MRI-based assessment in a randomized controlled trialAxial intermediate-weighted fat-suppressed MRI in treated patient at baseline (a) and 12 months (b) follow up show improvement of cartilage focal defect and thickness of the medial patella (long arrows). Also note the decrease in volume of the joint effusion (small arrows)Back to article page