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