Are Stem Cells Derived from Synovium and Fat Pad Able to Treat Induced Knee Osteoarthritis in Rats?

Table 2

Histopathological grading using international cartilage repair society (ICRS) histological score.

Variables	Scores
Surface
Smooth/continuous	3
Discontinuous/irregular	0
Matrix
Hyaline	3
Mixture: hyaline+fibrocartilage	2
Fibrocartilage	1
Fibrous tissue	0
Cell distribution
Columnar	3
Mixture/columnar cluster	2
Cluster	1
Individual cell/disorganized	0
Cell population variability
Predominantly viable	3
Partially viable	1
<10% viable	0
Subchondral bone
Normal	3
Increase remodeling	2
Bone necrosis/granulation tissue	1
Detached/fracture/cell at base	0
Cartilage mineralization
Normal	3
Abnormal/inappropriate location	0