Mesenchymal Stem Cells in Oriented PLGA/ACECM Composite Scaffolds Enhance Structure-Specific Regeneration of Hyaline Cartilage in a Rabbit Model

Figure 3

Gross appearance of regenerated cartilage at 12 and 24 weeks postoperation (a–f). Cross-sectional appearance of regenerated cartilage at 12 and 24 weeks postimplantation (g–l). Macroscopic examination and grading of regenerated articular cartilage revealed that the scores for the scaffold-alone and cell-loaded scaffold groups were better than those for the untreated group at 12 and 24 weeks (m). .