Clinical Study of Acupotomy for Knee Osteoarthritis Based on the Meridian-Sinew Theory: A Randomized Controlled Clinical Trial

Table 4

Comparison of VAS and WOMAC decline values ().

Subgroup		VAS				WOMAC
		n	Decrease	t/F		n	Decrease	t/F
Group	MS	63	1.7 ± 1.6	0.28	0.78	63	12.3 ± 13.7	0.29	0.77
	Anatomy	60	1.8 ± 1.8			59	13.0 ± 12.7
Subgroup	Yin-Yang harmony	44	1.8 ± 1.7	0.15	0.85	44	10.8 ± 11.9	0.95	0.38
	Yang deficiency	42	1.8 ± 1.6			43	14.8 ± 14.9
	Others	36	1.6 ± 1.8			36	12.4 ± 12.5

VAS, visual analog scale/score; VAS pain score, 0–10; lower score = better outcome. WOMAC pain score, 0–20. It was assessed with the following five items: pain during walking, stair climbing, resting, weight bearing, and pain at night. Each subscale used the following descriptors: none (0 points), mild (1 point), moderate (2 points), severe (3 points), and extreme (4 points).