Evaluation of the efficacy of subcutaneous carbon dioxide insufflations for treating acute non specific neck pain in general practice: A sham controlled randomized trial.

Background: Subcutaneous carbon dioxide insufflations are a safe and inexpensive treatment modality in complementary medicine and are used mainly in musculoskeletal pain and vascular conditions. However, no rigorous trial exists on their efficacy.

Aims: To evaluate whether patients with acute non specific neck pain get pain free sooner, if treated with subcutaneous carbon dioxide insufflations compared to sham ultrasound.