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Table 2 Locations of non-acupoints for SA group

From: Efficacy of electro-acupuncture and manual acupuncture versus sham acupuncture for knee osteoarthritis: study protocol for a randomised controlled trial

Non-acupoint

Location

NA1

On the anterior aspect of the thigh, 6 cuna above the upper edge of the patella (between the spleen and stomach meridian)

NA2

On the anterior aspect of the thigh, 5 cun above the upper edge of the patella (between the spleen and stomach meridian)

NA3

On the anterior aspect of the thigh, 4 cun above the upper edge of the patella (between the spleen and stomach meridian)

NA4

In the middle between GB34 and ST36 (between the gallbladder and bladder meridian)

NA5

3 cun below GB34 (between the gallbladder and bladder meridian)

NA6

2 cun above the medial malleolus (between the liver and spleen meridian)

NA7

2 cun above the lateral malleolus (between the gallbladder and bladder meridian)

NA8

In the middle between GB40 and ST41 (between the gallbladder and bladder meridian)

  1. a1 cun (≈20 mm) is defined as the width of the interphalangeal joint of the patient’s thumb