[Retracted] A Cohort Study of Rivaroxaban Combined with D-Dimer Dynamic Monitoring in the Prevention of Deep Venous Thrombosis after Knee Arthroplasty

Table 4

Comparison of APPT between the two groups before and after treatment [, s].

Group	Cases	Before operation	Third days after operation	Seven days after operation	Fourteen days after operation
Control group	42
Research group	42
		0.240	0.943	2.406	2.310
		0.811	348	0.018	0.023