Research Article
Human Urine-Derived Stem Cells: Potential for Cell-Based Therapy of Cartilage Defects
Table 2
The semiquantitative scale for grading the natural healing articular cartilage: subcategories and their individual respective scores.
| Feature | Score |
| Filling of defect | | 100% | 0 | 75% | 1 | 50% | 2 | 25% | 3 | 0% | 4 | Reconstitution of osteochondral junction | | Yes | 0 | Almost | 1 | Not close | 2 | Matrix staining | | Normal | 0 | Reduced staining | 1 | Significantly reduced staining | 2 | Faint staining | 3 | No stain | 4 | Cell morphology | | Normal | 0 | Mostly hyaline and fibrocartilage | 1 | Mostly fibrocartilage | 2 | Some fibrocartilage but mostly nonchondrocytic cell | 3 | Nonchondrocytic cell only | 4 |
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