[Retracted] Clinical Study of Neuromuscular Electrical Stimulation in the Prevention of Deep Venous Thrombosis of Lower Extremities after Anterior Cruciate Ligament Reconstruction

Table 3

The distribution of the data of each observation index before and after operation.

	VAS score		Plasma D-dimer content (g/L)		Affected knee circumference (cm)
	The day before the operation	Four days after the operation	The day before the operation	Four days after the operation	The day before the operation	Four days after the operation
Test group	5.80 ± 1.03	2.70 ± 0.67	0.59 ± 0.15	1.53 ± 0.18	45.60 ± 4.53	40.10 ± 3.28
Control group	6.10 ± 1.37	4.00 ± 1.33	0.57 ± 0.14	2.64 ± 0.16	46.20 ± 5.67	44.10 ± 4.18
t-value	−0.55	−2.76	−0.55	−14.19	−0.26	−2.38
-value	0.58 > 0.05	0.01 < 0.05	0.81 > 0.05	<0.05	0.79 > 0.05	0.02 < 0.05