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Does maintained Spinal manipulation therapy for chronic non-specific low back pain result in better long term outcome?

PainSci » bibliography » Senna et al 2011
updated
Tags: treatment, chiropractic, spinal adjustment, controversy, back pain, manual therapy, debunkery, spine, pain problems

One page on PainSci cites Senna 2011: Does Spinal Manipulation Work?

PainSci notes on Senna 2011:

Contrary to the popular theory that spinal manipulation is mainly just good for acute low back pain, this study in a good medical journal surprisingly conclude “SMT is effective for the treatment of chronic non specific LBP” and recommended “maintenance spinal manipulations after the initial intensive manipulative therapy.” There was some excitement about this, of course. Neil O’Connell of Body In Mind:

The email from the industry was effusive. In a cock-a-hoop, caps lock-happy frenzy it bellowed “ALL MANUAL MEDICINE PROVIDERS SHOULD BE AWARE OF THIS STUDY.”

Or not. Neil readily identified numerous serious problems with it.

It is of course possible that the results of this study are accurate and maintenance manipulations are effective, but these problems make it difficult to judge. The message from this one back pain trial might seem appealing and I can see why the email was so enthusiastic. But by focusing on one particular cherry that seems so ripe and juicy we might miss the bigger picture from the rest of the tree. And there is always the chance that the tastiest cherries contain a few artificial sweeteners. Personally I would lay off the caps lock for now.

original abstract Abstracts here may not perfectly match originals, for a variety of technical and practical reasons. Some abstacts are truncated for my purposes here, if they are particularly long-winded and unhelpful. I occasionally add clarifying notes. And I make some minor corrections.

STUDY DESIGN: A prospective single blinded placebo controlled study was conducted.

OBJECTIVE: to assess the effectiveness of spinal manipulation therapy (SMT) for the management of chronic non-specific low back pain (LBP) and to determine the effectiveness of maintenance SMT in long-term reduction of pain and disability levels associated with chronic low-back conditions after an initial phase of treatments.

SUMMARY OF BACKGROUND: SMT is a common treatment option for low back pain. Numerous clinical trials have attempted to evaluate its effectiveness for different subgroups of acute and chronic LBP but the efficacy of maintenance SMT in chronic non-specific LBP has not been studied.

SUBJECTS AND METHODS: 60 patients with chronic, nonspecific LBP lasting at least 6 months were randomized to receive either (1) 12 treatments of sham SMT over a one-month period, (2) 12 treatments, consisting of SMT over a one-month period, but no treatments for the subsequent nine months, or (3) 12 treatments over a one-month period, along with "maintenance spinal manipulation" every two weeks for the following nine months. To determine any difference among therapies, we measured pain and disability scores, generic health status, and back-specific patient satisfaction at baseline and at 1-month, 4-month, 7-month and 10-month intervals.

RESULTS: Patients in second and third groups experienced significantly lower pain and disability scores than first group at the end of 1-month period (P = 0.0027 and 0.0029 respectively). However, only the third group that was given spinal manipulations during the follow-up period showed more improvement in pain and disability scores at the 10-month evaluation. In the no maintained SMT group, however, the mean pain and disability scores returned back near to their pretreatment level.

CONCLUSION: SMT is effective for the treatment of chronic non specific LBP. To obtain long-term benefit, this study suggests maintenance spinal manipulations after the initial intensive manipulative therapy.

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