Table 2.

Comparative analysis of morphological characteristics of a natural osteochondral complex and the proposed scaffold

	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