Table 6.
Postoperative MRI Assessment of Grafts for the Accelerated (Acc) and Traditional (Trad) Rehabilitation Groups
| Variable | MRI Composite Score | Signal Intensity | Graft Infill | Border Integration | Surface Contour | Structure | Subchondral Lamina | Subchondral Bone | Effusion |
|---|---|---|---|---|---|---|---|---|---|
| Acc (3 mo) | 2.81 (0.10) | 1.90 (0.11) | 2.97 (0.16) | 2.77 (0.19) | 2.90 (0.15) | 3.40 (0.18) | 3.20 (0.14) | 2.97 (0.14) | 3.73 (0.10) |
| Trad (3 mo) | 2.80 (0.10) | 2.22 (0.10) | 2.80 (0.16) | 2.66 (0.18) | 2.81 (0.15) | 3.53 (0.17) | 3.34 (0.14) | 2.75 (0.14) | 3.50 (0.10) |
| Acc (12 mo) | 3.21 (0.13) | 2.93 (0.17) | 3.48 (0.16) | 2.90 (0.19) | 2.80 (0.18) | 3.33 (0.19) | 3.80 (0.07) | 2.97 (0.15) | 3.87 (0.08) |
| Trad (12 mo) | 3.15 (0.12) | 2.94 (0.17) | 3.30 (0.16) | 2.84 (0.19) | 2.81 (0.17) | 3.41 (0.18) | 3.81 (0.07) | 2.91 (0.14) | 3.69 (0.08) |
| Acc (24 mo) | 3.14 (0.12) | 2.76 (0.14) | 3.40 (0.17) | 2.93 (0.21) | 2.97 (0.20) | 3.30 (0.19) | 3.90 (0.05) | 2.43 (0.19) | 3.67 (0.10) |
| Trad (24 mo) | 3.07 (0.11) | 2.81 (0.13) | 3.30 (0.16) | 2.75 (0.20) | 2.72 (0.19) | 3.22 (0.18) | 3.97 (0.05) | 2.75 (0.18) | 3.56 (0.09) |
| Time effect (P value) | <0.0001 | <0.0001 | <0.0001 | 0.113 | 0.902 | 0.095 | <0.0001 | 0.018 | 0.035 |
| Group effect (P value) | 0.740 | 0.435 | 0.462 | 0.659 | 0.610 | 0.861 | 0.423 | 0.937 | 0.102 |
| Interaction Effect (P value) | 0.796 | 0.279 | 0.878 | 0.733 | 0.515 | 0.508 | 0.728 | 0.096 | 0.661 |
Note: Scoring of the 8 individual MRI parameters and calculation of the MRI composite score (1 = poor, 2 = fair, 3 = good, 4 = excellent), in comparison with the adjacent native cartilage. Shown are means (SE).