Table 2.

JKOM, WOMAC, VAS score (point).

	Prior to injection	Post 1 month	Post 6 month
JKOM	55.9 ± 21.0	43.0 ± 17.4*	36.5 ± 21.9*,**
WOMAC	49.6 ± 20.4	37.9 ± 17.7*	33.8 ± 20.9*,**
VAS	72.7 ± 18.2	49.2 ± 21.1*	43.5 ± 24.1*,**

JKOM: the Japanese knee osteoarthritis measure; WOMAC: the Western Ontario and McMaster Universities Osteoarthritis Index; VAS: visual analogue scale for pain.

*Significant difference between pre-Op and 1 month, 6 months (P < 0.01).

**No significant difference between 1 month and 6 months (P > 0.05).