Table 2.

Total contents of knee society score, visual analog scale and range of motion in three groups

Variable	Mean±SD			P *	P** (between multimodal injection and placebo)	P** (between multimodal injection and control group)	P** (between placebo group and control group)
	Multimodal injection	Placebo group	Control group
KSS
Baseline	1.49±24.894	1.94±23.942	6.84±13.801	0.39	0.918	0.224	0.26
Within 6 weeks	113.15±14.89	100.24±17.97	102.02±7.91	<0.001	<0.001	<0.001	0.53
Within 6 months	115.96±13.49	101.20±16.62	98.53±6.97	<0.001	<0.001	<0.001	0.31
P1 (time)	<0.001	<0.001	<0.001
P3 (intervention)		0.001
VAS
Baseline	7±1.22	7.39±1.07	7.27±1.09	0.24	0.098	0.25	0.59
Within 24 h	6.39±1.45	8.80±0.88	8.10±0.65	<0.001	<0.001	<0.001	0.001
Within 48 h	5.02±1.25	6.20±1.22	6.18±0.80	<0.001	<0.001	<0.001	0.92
Within 6 weeks	3.46±1.14	4.15±1.25	3.67±0.65	0.006	0.002	0.31	0.028
P1 (time)	<0.001	<0.001	<0.001
P3 (intervention)		<0.001
ROM
Baseline	87.89±10.41	90.10±10.02	90±3.68	0.37	0.21	0.23	0.95
Within 24 h	107.56±6.36	94.49±3.57	95±2.88	<0.001	<0.001	<0.001	0.57
Within 48 h	113.44±5.09	96.12±4.11	98.16±2.83	<0.001	<0.001	<0.001	0.015
Within 6 weeks	128.33±13.18	119.80±8.16	122.65±4.57	<0.001	<0.001	0.003	0.12
P1 (time)	<0.001	<0.001	<0.001
P3 (intervention)		<0.001

^*ANOVA, ^**Post hoc Tukey test. P₁, P₂, P₃ at the 5% level error of repeated measures. KSS=Knee society score; VAS=Visual Analogue Scale; ROM=Range of motion; SD=Standard deviation