Table 1.
Radiological findings based on radiographs and anatomic MR images
| Patient ID | KL Score | Cartilage thinning | Osteophytes | BME | ||||||
|---|---|---|---|---|---|---|---|---|---|---|
| MFC | LFC | MT | LT | P | F-T | F-P | Center | |||
| 1 | 2 | 1 | 0 | 0 | 0 | 2 | 1 | 1 | 0 | 0 |
| 2 | 1 | 1 | 1 | 0 | 0 | 0 | 1 | 1 | 0 | 0 |
| 3 | 2 | 0 | 1 | 0 | 1 | 1 | 1 | 1 | 1 | 2 |
| 4 | 3 | 2 | 0 | 2 | 0 | 2 | 2 | 2 | 1 | 2 |
| 5 | 3 | 3 | 0 | 3 | 0 | 2 | 1 | 1 | 0 | 2 |
| 6 | 1 | 1 | 0 | 0 | 0 | 1 | 1 | 1 | 0 | 3 |
| 7 | 4 | 3 | 2 | 3 | 2 | 3 | 2 | 1 | 1 | 2 |
| 8 | 3 | 2 | 3 | 2 | 2 | 3 | 1 | 1 | 0 | 2 |
| 9 | 2 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 |
| 10 | 4 | 3 | 0 | 3 | 0 | 1 | 3 | 2 | 0 | 2 |
MFC: medial femoral condyle; LFC: lateral femoral condyle, MT: medial tibia; LT: lateral tibia; P: patella; F-T: femoral-tibial joint; F-P: femoral-patellar joint; BME: bone marrow edema.
Cartilage thinning grading: 1, <50% thinning; 2, >50% thinning; and 3, full thinning (loss) of cartilage.
Bone marrow edema grading: 0, no obvious BME; 1, mild edema with less than 1 cm diameter in the long axis; 2, moderate edema with diameter between 1 and 3 cm in the long axis; 3, severe edema with diameter larger than 3 cm in the long axis.