Acupuncture can result in clinically significant results for the treatment of shoulder impingement syndrome. In a randomised trial carried out in Spain, 68 participants received either true acupuncture (TA) or sham acupuncture (SA) at non-acupoints. The treatment was carried out over four weeks, with participants receiving one session per week. The results showed significant differences between the two groups. Immediately after the treatment, pain intensity was found to have decreased by 44.13 millimetres on a Visual Analogue Scale (VAS) in the TA group, compared with 19.84 millimetres for SA. Three months later, this between-group difference was still apparent (87.58 millimetres for TA versus 20 millimetres). Shoulder function scores also showed clinically meaningful changes in support of TA.
Acupuncture treatment of shoulder impingement syndrome: A randomized controlled trial. Complement Ther Med. 2016 Apr;25:92-7.