Table 3.

Comparison of RutherFord grading between the two groups before and after intervention (x̅±s)

RutherFord grading	Groups	1	2	3	4	5	6
Pre-operation	Experimental group	0	0	15 (36.6%)	14 (34.1%)	7 (24.4%)	5 (12.2%)
	Control group	0	0	16 (38.1%)	15 (35.7%)	4 (9.5%)	7 (16.7%)
	t	-	-	2.124	1.395	1.753	2.645
	P	-	-	0.214	0.085	0.119	0.223
One week after operation	Experimental group	0	10 (24.4%)	10 (24.4%)	9 (21.9%)	7 (17.1%)	5 (12.2%)
	Control group	0	8 (19%)	13 (30.9%)	7 (16.7%)	4 (9.5%)	7 (16.7%)
	t	-	3.267	2.471	2.151	2.654	1.793
	P	-	0.093	0.095	0.078	0.088	0.913
Three weeks after operation	Experimental group	6 (14.6%)	9 (21.9%)	7 (17.1%)	8 (19.5%)	6 (14.6%)	5 (12.2%)
	Control group	7 (16.7%)	8 (19%)	8 (19%)	7 (16.7%)	3 (7.1%)	7 (16.7%)
	t	1.531	1.841	2.295	2.537	4.551	1.401
	P	0.931	0.881	0.065	0.751	0.093	0.071
Six weeks after operation	Experimental group	9 (21.9%)	11 (26.8%)	8 (19.5%)	3 (7.3%)	5 (12.2%)	5 (12.2%)
	Control group	8 (19%)	9 (21.4%)	10 (23.8%)	6 (14.3%)	2 (4.7%)	7 (16.7%)
	t	1.940	2.433	2.887	3.543	3.241	2.777
	P	0.066	0.102	0.221	0.199	0.079	0.084
Twelve weeks after operation	Experimental group	14 (34.1%)	13 (31.7%)	5 (12.2%)	3 (7.3%)	2 (4.9%)	5 (12.2%)
	Control group	9 (21.4%)	10 (23.8%)	10 (23.8%)	5 (11.9%)	0	7 (16.7%)
	t	7.776	3.219	6.392	1.887	1.221	1.423
	P	0.037	0.310	0.042	0.210	0.193	0.072

Note: Compared with the control group, Significant difference as P<0.05.