Spinal manipulation for primary and secondary dysmenorrhoea

Area of Science:

• Gynaecology
• Musculoskeletal Medicine
• Evidence-Based Medicine

Background:

• Dysmenorrhoea, characterized by painful uterine cramps, is a prevalent gynaecological condition.
• Spinal manipulation therapy is explored as a potential treatment, with hypotheses linking vertebral dysfunction to sympathetic nerve changes affecting pelvic vasculature or to referred pain.
• These mechanisms suggest spinal manipulation could influence dysmenorrhoea by improving pelvic blood supply or altering pain pathways.

Purpose of the Study:

• To evaluate the safety and efficacy of spinal manipulative interventions for primary or secondary dysmenorrhoea.
• Comparisons were made against other spinal techniques, placebo, no treatment, or conventional medical treatments.

Main Methods:

• A comprehensive literature search was conducted across multiple databases for randomized controlled trials (RCTs) up to April 2006.
• Included RCTs involved spinal manipulative interventions (e.g., chiropractic, osteopathy) for dysmenorrhoea, excluding mild cases or IUD-related pain.
• Four trials on high-velocity, low-amplitude (HVLA) manipulation and one on the Toftness technique were analyzed using meta-analysis for dichotomous and continuous outcomes, alongside descriptive data.

Main Results:

• High-velocity, low-amplitude (HVLA) manipulation was not found to be more effective than sham manipulation for dysmenorrhoea, though it may be more effective than no treatment.
• One adequately sized trial found no difference between HVLA and sham treatment, despite smaller trials suggesting a benefit.
• The Toftness technique showed potential effectiveness over sham treatment in one small trial, but methodological limitations prevent firm conclusions.

Conclusions:

• Current evidence does not support the effectiveness of spinal manipulation for treating primary or secondary dysmenorrhoea.
• Spinal manipulation does not appear to carry a greater risk of adverse effects compared to sham manipulation.
• Further high-quality research is needed to definitively establish the role of spinal manipulation in dysmenorrhoea management.