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Table 1 Locations of needling details for the acupoints used in the treatment protocol

From: Efficacy and safety of polydioxanone thread embedded at specific acupoints for non-specific chronic neck pain: a study protocol for a randomized, subject-assessor-blinded, sham-controlled pilot trial

Acupoints Location Needling details
GB20 (Fengchi) In the posterior region of the neck, inferior to the occipital bone, in the depression between the origins of the sternocleidomastoid and the trapezius muscles Perpendicular insertion in the direction of the opposite eye
TE16 (Tianyou) In the anterior region of the neck, at the same level as the angle of the mandible, in the depression posterior to the sternocleidomastoid muscle Oblique superior insertion across the sternocleidomastoid muscle
LI17 (Tianding) On the anterior aspect of the neck, at the same level as the cricoid cartilage, just posterior to the border of the sternocleidomastoid muscle Oblique inferior insertion along the scalene
GB21 (Jianjing) In the posterior region of the neck, at the midpoint of the line connecting the spinous process of the 7th cervical vertebra (C7) with the lateral end of the acromion Oblique medial insertion
SI14 (Jianwaishu) In the upper back region, at the same level as the inferior border of the spinous process of the 1st thoracic vertebra (T1), 3 body-cun lateral to the posterior median line Oblique inferior insertion in the direction of the superior part of the medial border of the scapula
Paravertebral point 0.5 body-cun lateral to the spinous process at the levels of the 5th and the 7th cervical vertebrae, respectively Perpendicular insertion