TABLE 3.

Comparison of VAS and WOMAC in the two treatment groups before and the final follow-up after the treatment.

	VAS		WOMAC
	Pre-injection (n = 50)	Final follow-up	Pre-injection (n = 50)	Final follow-up
HA Group (n = 22)	5.1 ± 1.5	5.8 ± 0.8#	37.5 ± 11.4	44.6 ± 9.9*
PRP Group (n = 34)	5.3 ± 1.8	4.9 ± 1.0	37.8 ± 13.7	38.8 ± 8.6

HA, hyaluronic acid; PRP, platelet-rich plasma; VAS, visual analogue scale; WOMAC, Western Ontario and McMaster Universities Arthritis Index; # indicates p value < 0.01 between the pre-injection and the final follow-up in the HA, group; * indicates p value < 0.05 between the pre-injection and the final follow-up in the HA, group; Boldface indicates p value < 0.05 between the two groups at the final follow-up.

The bold values indicate a significant difference between the two groups at the final follow-up.