Table 4.

Comparison of VAS and HSS scores before and after treatment [$\overline{x}$±s, Points].

Group	N	VAS		HSS
		Before treatment	After treatment	Before treatment	After treatment
C group	50	5.63 ± 1.12	3.45 ± 0.36a	43.56 ± 7.74	65.82 ± 10.44a
R group	50	5.46 ± 1.14	1.76 ± 0.28b	43.17 ± 7.56	83.48 ± 11.23b
t		0.752	16.712	0.255	8.144
P		0.454	0.0001	0.799	0.0001

Note: the control group before and after treatment, aP < 0.05; the study group before and after treatment, bP < 0.05.