Table 3.
The radiographic findings at entry into the study*.
| Treatment groups | |||||
| Radiographic findings | Placebo (89 knees) | Diclofen ac (90 knees) | EA (91 knees) | Combined (90 knees) | p-value |
| Kellgren and Lawrence X-ray grade [32] | |||||
| Grade 1 | 4 | 1 | 3 | 5 | 0.40f |
| Grade 2 | 4 | 6 | 5 | 7 | 0.84f |
| Grade 3 | 19 | 15 | 25 | 23 | 0.31c |
| Grade 4 | 62 | 68 | 58 | 55 | 0.16c |
| Knee compartment with most severe change of OA | |||||
| Medial tibiofemoral | 63 | 77 | 69 | 64 | 0.73c |
| Lateral tibiofemoral | 12 | 5 | 13 | 11 | 0.24c |
| Patellofemoral | 14 | 8 | 9 | 15 | 0.28c |
Data represent number of patients. Statistic analysis: c = chi-square test, f = Fisher's exact test.