Table 2.
Histological Evaluation System (Huddleston et al. 2000 )
| Points | Histological findings |
|---|---|
| 1 | Fibrous tissue |
| 2 | Predominantly fibrous tissue with some cartilage |
| 3 | Equal amounts of fibrous and cartilage tissue |
| 4 | All cartilage |
| 5 | Predominantly cartilage tissue with some woven bone |
| 6 | Equal amounts of cartilage and woven bone |
| 7 | Predominantly woven bone with some cartilage |
| 8 | Entirely woven bone |
| 9 | Woven bone and some mature bone |
| 10 | Lamellar(mature) bone |