Table 2 Test results of deep venous ultrasonography in both lower limbs of patients in the two groups before leaving the operating room after the surgery (cases, %)
Group | Blood flow unobstruction | Blood flow stagnation | DVT |
|---|---|---|---|
Observation group(n=98) | 97(98.98) | 1(1.02) | 0 |
Control group(n=98) | 87(88.78) | 11(1.22) | 0 |
Z value | 8.877 | ||
P value | 0.003 | ||