| Natural osteochondral complex | Osteochondral scaffold |
---|---|---|
Phases | Bone, cartilage, and transitional region | Bone, cartilage and transitional region |
Porosity of transitional region (%) | 20 | 30 |
Porosity of bone phase (%) | 60 | 65 |
Transitional region | ||
 Defects | Exist | Exist |
 Connected structure | Imbedding interlocking | Imbedding interlocking |
 Hole area (%) | 7 | 10 |
 Protrusion width (μm) | 51 | 400 |
 Protrusion width (%) | 85 | 35 |