Alternative medicine encompasses many bizarre treatments, but one of the weirdest must be craniosacral therapy (CST). The assumptions underlying CTS are:
- light manual touch of the head moves the joints of the cranium;
- this movement stimulates the flow of the cerebrospinal fluid;
- the enhanced flow has profound and positive effects on human health.
None of these assumptions are supported by evidence. In fact, they are as implausible as assumptions in alternative medicine get.
CST was developed by the osteopath John Upledger, D.O. in the 1970s, as an offshoot osteopathy in the cranial field, or cranial osteopathy, which was developed in the 1930s by William Garner Sutherland. Apart from this confusing terminology, we are also confronted with a confusing array of therapeutic claims; CST seems to be recommended for most conditions.
And the evidence? As good as none!
This is why any new trial is worth a mention. A recent study tested CST in comparison to sham treatment in chronic non-specific neck pain patients. 54 blinded patients were randomized to either 8 weekly units of CST or light touch sham treatment. Outcomes were assessed before and after treatment (week 8) and a further 3 months later (week 20). The primary outcome was pain intensity on a visual analogue scale; secondary outcomes included pain on movement, pressure pain sensitivity, functional disability, health-related quality of life, well-being, anxiety, depression, stress perception, pain acceptance, body awareness, patients’ global impression of improvement and safety.
In comparison to sham, CST patients reported significant and clinically relevant effects on pain intensity at week 8 as well as at week 20. Minimal clinically important differences in pain intensity at week 20 were reported by 78% of the CST patients, while 48% even had substantial clinical benefit. Significant differences at week 8 and 20 were also found for pain on movement, functional disability, physical quality of life and patients’ global improvement. Pressure pain sensitivity and body awareness were significantly improved only at week 8; anxiety only at week 20. No serious adverse events were reported.
The authors from the Department of Internal and Integrative Medicine, University of Duisburg-Essen and the Institute of Integrative Medicine, University of Witten/Herdecke, Germany, concluded that CST was both specifically effective and safe in reducing neck pain intensity and may improve functional disability and quality of life up to 3 months post intervention.
Oddly, this is not even close to the conclusion I am going to draw: inadequate control for placebo and other non-specific effects generated a false-positive result.
Who is correct?
I suggest we wait for an independent replication to decide.