Cartilage defects are among the most difficult diseases with poor curative rates. Cartilage regeneration is often limited by the low regeneration capacity of chondrocytes. Tissue engineering has emerged as an important strategy for cartilage regeneration. The choice of scaffold is a key factor for the successful construction of tissue engineering cartilage. In this research, we successfully constructed a silk/silk fibroin/gelatin/polylactic acid porous microspheres (S/SF/G/PLLA-PMs) scaffold. It...