Figure 1.

(a) Cartilage thickness. The cartilage thickness differs not significantly between the groups but is higher than normal caused by the technique of defect preparation (n.s.: not significant). (b) Instantaneous or instant modulus. The instant modulus is significantly higher in the group treated with amplified chondrocytes compared to the other intervention groups (n.s.: not significant). (c) Shear modulus. The shear modulus reached significantly higher values in the group treated with amplified chondrocytes compared to the other intervention groups (n.s.: not significant).