If we ask how effective spinal manipulation is as a treatment of back pain, we get all sorts of answers. Therapists who earn their money with it – mostly chiropractors, osteopaths and physiotherapists – are obviously convinced that it is effective. But if we consult more objective sources, the picture changes dramatically. The current Cochrane review, for instance, arrives at this conclusion: SMT is no more effective in participants with acute low-back pain than inert interventions, sham SMT, or when added to another intervention. SMT also appears to be no better than other recommended therapies.
Such reviews tend to pool all studies together regardless of the nature of the practitioner. But perhaps one type of clinician is better than the next? Certainly many chiropractors are on record claiming that they are the best at spinal manipulations. Yet it is conceivable that physiotherapists who do manipulations without being guided by the myth of ‘adjusting subluxations’ have an advantage over chiropractors. Three very recent systematic reviews might go some way to answer these questions.
The purpose of the first systematic review was to examine the effectiveness of spinal manipulations performed by physiotherapists for the treatment of patients with low back pain. The authors found 6 RCTs that met their inclusion criteria. The most commonly used outcomes were pain rating scales and disability indexes. Notable results included varying degrees of effect sizes favouring spinal manipulations and minimal adverse events resulting from this intervention. Additionally, the manipulation group in one study reported significantly less medication use, health care utilization, and lost work time. The authors concluded that there is evidence to support the use of spinal manipulation by physical therapists in clinical practice. Physical therapy spinal manipulation appears to be a safe intervention that improves clinical outcomes for patients with low back pain.
The second systematic Review was of osteopathic intervention for chronic, non-specific low back pain (CNSLBP). Only two trials met the authors’ inclusion criteria. They had a lack of methodological and clinical homogeneity, precluding a meta-analysis. The trials used different comparators with regards to the primary outcomes, the number of treatments, the duration of treatment and the duration of follow-up. The authors drew the following conclusions: There are only two studies assessing the effect of the manual therapy intervention applied by osteopathic clinicians in adults with CNSLBP. One trial concluded that the osteopathic intervention was similar in effect to a sham intervention, and the other suggests similarity of effect between osteopathic intervention, exercise and physiotherapy. Further clinical trials into this subject are required that have consistent and rigorous methods. These trials need to include an appropriate control and utilise an intervention that reflects actual practice.
The third systematic review sought to determine the benefits of chiropractic treatment and care for back pain on well-being, and aimed to explore to what extent chiropractic treatment and care improve quality of life. The authors identified 6 studies (4 RCTs and two observational studies) of varying quality. There was a high degree of inconsistency and lack of standardisation in measurement instruments and outcome measures. Three studies reported reduced use of other/extra treatments as a positive outcome; two studies reported a positive effect of chiropractic intervention on pain, and two studies reported a positive effect on disability. The authors concluded that it is difficult to defend any conclusion about the impact of chiropractic intervention on the quality of life, lifestyle, health and economic impact on chiropractic patients presenting with back pain.
Yes, yes, yes, I know: the three reviews are not exactly comparable; so we cannot draw firm conclusions from comparing them. Five points seem to emerge nevertheless:
- The evidence for spinal manipulation as a treatment for back pain is generally not brilliant, regardless of the type of therapist.
- There seem to be considerable differences according to the nature of the therapist.
- Physiotherapists seem to have relatively sound evidence to justify their manipulations.
- Chiropractors and osteopaths are not backed by evidence which is as reliable as they so often try to make us believe.
- Considering that the vast majority of serious complications after spinal manipulation has occurred with chiropractors, it would seem that chiropractors are the profession with the worst track record regarding manipulation for back pain.
To include conventional health care professionals amongst those who significantly contribute to the ‘sea of misinformation’ on alternative medicine might come as a surprise. But sadly, they do deserve quite a prominent place in the list of contributors. In fact, I could write one entire book about each of the various professions’ ways to mislead patients about alternative medicine.
There are, of course, considerable national differences and other peculiarities which render each specific profession quite complex to evaluate. The material is huge – far to big to fit in a short comment. All I will therefore try to do with this post is to throw a quick spotlight on some of the mainstream professions mentioning just one or two relevant aspects in each instant.
Particularly in North America, many nurses seem to be besotted with ‘Therapeutic Touch’, an implausible and unproven ‘energy-therapy’. For instance, the College of Nurses of Ontario includes Therapeutic Touch as a therapy permitted for its members. In other regions, other alternative treatments might be more popular with nurses but, in general, many seem to have a weakness for this sector. Researchers from Aberdeen recently conducted a survey to establish the use of alternative medicine by registered nurses, as well as their knowledge-base and attitudes towards it. They sent a questionnaire to 621 nurses and achieved a remarkable response rate of 86%. Eighty per cent of the responders admitted to employ alternative medicine and 41% were using it currently. Only five nurses believed that alternative medicine was not effective and 74% would recommend it to others. In other words, there is a strong likelihood of patients being misinformed by nurses.
A recent article in the UK journal THE PRACTISING MIDWIFE (Sept 2013) by Valerie Smith (not Medline-listed) claimed that the Royal College of Midwives supports the use of homeopathic remedies during childbirth. This does come to no surprise to those who know that several surveys have suggested that midwives are particularly fond of un- or dis-proven therapies and that they employ them often without the knowledge of obstetricians. We investigated this question by conducting a systematic review of all surveys of alternative medicine use by midwives. In total,19 surveys met our inclusion criteria. Most were recent and many originated from the US. Prevalence data varied but were usually high, often close to 100%. Much of this practice was not supported by sound evidence for efficacy and some of the treatments employed had the potential to put patients at risk. It seems obvious that, in order to employ unproven treatment, midwives first need to misinform their patients.
Some physiotherapists promote and practise a range of unproven treatments, e.g. craniosacral therapy. I am not aware of statistics on this, but it is not difficult to find evidence on the Internet: One website boldly states that Physiotherapy & Craniosacral Therapy available with Charetred Physiotherapist with 20 years of experience in the NHS. Another one proudly announces: Our main methods of treatment are through Physiotherapy and Craniosacral Therapy. A third site claims that Craniosacral Therapy is attracting increasing interest for its gentle yet effective approach, working directly with the body’s natural capacity for self-repair to treat a wide range of conditions. And a final example: Catherine is a registered Cranio-Sacral Therapist, a Physiotherapist, and is a tutor at the London College of Cranio-Sacral Therapy. She is also qualified in acupuncture for pain relief and a member of the Craniosacral Therapy Association, the Chartered Society of Physiotherapy and Acupuncture Association for Chartered Physiotherapists.
If you go into any pharmacy in the UK, you do not need to search for long to find shelves full of homeopathic remedies, Bach flower remedies, aromatherapy-oils or useless herbal slimming aids, to mention just 4 of the many different bogus treatments on offer. If you do the same in Germany, France, Switzerland or other countries, the amount of bogus remedies and devices for sale might even be greater. Pharmacists, it seems to me, have long settled to be shopkeepers who have few scruples misleading their customers into believing that these useless products are worth buying. Their code of ethics invariably forbids them such promotion and trade, but most pharmacists seem to pay no or very little attention. The concern for profit has clearly won over the concern for customers or patients.
I have left my own profession for last – not because they are the least contributors to the ‘sea of misinformation, but because, in some respects, they are the most important ones. The general attitude amongst doctors today seems to be ‘I don’t care how it works, as long as it helps my patients’. I have dedicated a previous post on explaining that this is misleading nonsense; therefore there is no reason to not repeat myself. Instead, I might just mention how many doctors practice homeopathy thus misleading patients into believing that it is an effective therapy. Alternatively, I could refer to those charlatans with a medical degree who promote bogus cancer cures. In my view, misinformation by doctors is the most serious form of misinformation of them all: physicians involved in such activities violate their ethical code and betray patients who frequently trust doctors almost blindly.
It would be a misunderstanding to assume that, with this post, I am accusing all conventional health care professionals of misinforming us about alternative medicine. But some clearly do; and when they do abuse their positions of trust in this way, they do a serious disservice to us all. I hope that exposing this problem will contribute to conventional health care professionals behaving more responsibly in future.