Table 2.

Preoperative evaluation of knee function

Indexes	Group A (n = 24)	Group B (n = 25)	Group C (n = 25)	p value
WOMAC score
Pain	13.26 ± 3.73	13.71 ± 3.28	12.24 ± 3.17	n.s.
Stiffness	5.26 ± 1.02	5.70 ± 1.04	5.53 ± 0.96	n.s.
Physical function	50.98 ± 8.35	53.22 ± 7.68	50.33 ± 7.37	n.s.
Total	69.54 ± 12.83	72.63 ± 11.49	67.55 ± 10.94	n.s.
VAS score	7.43 ± 0.98	7.35 ± 1.03	7.36 ± 1.01	n.s.

WOMAC score and VAS score were calculated using the analysis of variance (ANOVA)

WOMAC—Western Ontario and McMaster Universities Arthritis Index; VAS—visual analog scale

n.s.: p > 0.05