Syndromes | n | Suprapatellar sac fluid | Synovial thickness | Intercondylar cartilage | Meniscus bulging |
Cold dampness | 39 | 1.73 ± 1.51 | 2.73 ± 1.68 | 1.53 ± 0.29 | 4.46 ± 0.99 |
Qi stagnation and blood stasis | 26 | 5.17 ± 2.10 | 4.59 ± 2.48 | 2.49 ± 0.42 | 1.77 ± 0.93 |
t value |
| −4.008 | −2.658 | −8.117 | −8.197 |
P value |
| <0.01 | 0.010 | <0.01 | <0.01 |