Figure 1From: The effects of staged intra-articular injection of cultured autologous mesenchymal stromal cells on the repair of damaged cartilage: a pilot study in caprine modelFull thickness chondral defects. (A) Chondral defects with 5 mm diameter chondrotome. (B) Removal of calcified cartilage layer with curette, leaving an intact subchondral bone plate. (C,D) Five drill holes per chondral defect can be clearly observed after being washed with saline.Back to article page