Table 1
| US findings | Kellgren-Lawrence grade on radiographs | Total | |||
|---|---|---|---|---|---|
| KL 0 | KL 1 | KL 2 | KL 3-4 | ||
| Osteophyte score | |||||
| 0 | 155 (65.7%) | 36 (40.4%) | 7 (18.4%) | 2 (4.3%) | 200 |
| 1 | 68 (28.8%) | 38 (42.7%) | 8 (21.1%) | 8 (17%) | 122 |
| 2 | 11 (4.7%) | 12 (13.5%) | 18 (47.4%) | 15 (31.9%) | 56 |
| 3 | 2 (0.8%) | 3 (3.4%) | 5 (13.2%) | 22 (46.8%) | 32 |
| Total | 236 | 89 | 38 | 47 | 410 |
| Cartilage thickness in millimeter (mean (SD)) | 1.87 (0.46) | 1.87 (0.54) | 1.66 (0.56) | 1.93 (0.57) | 1.86 (0.50) |