Table 2 The MOCART scores based on the 12-month follow-up MRI examination
Variables | Score | n | Mean ± SD | 95% CI |
|---|---|---|---|---|
1. Degree of defect repair and filling of the defect |  |  | 17.9 ± 3.1 | 16.94 – 18.87 |
 Complete | 20 | 27 |  |  |
 Hypertrophy | 15 | 15 |  |  |
 Incomplete |  |  |  |  |
   > 50% of the adjacent cartilage | 10 | 0 |  |  |
   < 50% of the adjacent cartilage | 5 | 1 |  |  |
 Subchondral bone exposed | 0 | 0 |  |  |
2. Integration to border zone |  |  | 7.7 ± 2.7 | 6.83 – 8.52 |
 Complete | 15 | 1 |  |  |
 Incomplete |  |  |  |  |
 Demarcating border visible | 10 | 21 |  |  |
 Defect visible |  |  |  |  |
   < 50% of the length of the repair tissue | 5 | 21 |  |  |
   > 50% of the length of the repair tissue | 0 | 0 |  |  |
3. Surface of the repair tissue |  |  | 2.6 ± 3.2 | 1.59 – 3.53 |
 Surface intact | 10 | 3 |  |  |
 Surface damaged |  |  |  |  |
   < 50% of repair tissue depth or total degeneration | 5 | 26 |  |  |
   > 50% of repair tissue depth or total degeneration | 0 | 24 |  |  |
4. Structure of the repair tissue |  |  | 4.9 ± 0.7 | 4.65 – 5.12 |
 Homogenous | 5 | 42 |  |  |
 Inhomogenous or cleft formation | 0 | 1 |  |  |
5. Signal intensity of the repair tissue |  |  | 21.6 ± 7.5 | 19.31 – 23.95 |
 Normal (identical to adjacent cartilage) | 30 | 19 |  |  |
 Nearly normal (slight areas of signal alteration) | 15 | 24 |  |  |
 Abnormal (large areas of signal alteration) | 0 | 0 |  |  |
6. Subchondral lamina |  |  | 4.9 ± 0.8 | 4.65 – 5.12 |
 Intact | 5 | 42 |  |  |
 Not intact | 0 | 1 |  |  |
7. Subchondral bone |  |  | 4.8 ± 1.1 | 4.44 – 5.10 |
 Intact | 5 | 41 |  |  |
 Not intact | 0 | 2 |  |  |
8. Adhesions |  |  | 3.5 ± 2.3 | 2.77 – 4.20 |
 No | 5 | 30 |  |  |
 Yes | 0 | 13 |  |  |
9. Effusion |  |  | 1.9 ± 2.4 | 1.11 – 2.61 |
 No | 5 | 26 |  |  |
 Yes | 0 | 27 |  |  |
Total | 100 |  | 70.5 ± 11.1 | 67.06 – 73.87 |