a randomised controlled trial of ‘clockwise’ ultrasound for low back pain

Clicks: 445
ID: 209863
2016
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Abstract
Aims: To examine how the choice of words explaining ultrasound (US) may influence the outcome of physiotherapy treatment for low back pain (LBP). Methods: Sixty-seven patients with LBP < 3 months were randomly allocated to one of three groups – traditional education about US (control group [CG]), inflated education about US (experimental group [EG]) or extra-inflated education about US (extra-experimental group [EEG]). Each patient received the exact same application of US that has shown clinical efficacy for LBP (1.5 Watts/cm2 for 10 minutes at 1 Megahertz, pulsed 20% over a 20 cm2 area), but received different explanations (CG, EG or EEG). Before and immediately after US,measurements of LBP and leg pain (numeric rating scale), lumbar flexion (distance to floor) and straight leg raise (SLR) (inclinometer) were taken. Statistical analysis consisted of mixed-factorial analyses of variance and chi-square analyses to measure differences between the three groups, as well as meeting or exceeding minimal detectable changes (MDCs) for pain, lumbar flexion and SLR. Results: Both EG and EEG groups showed a statistically significant improvement for SLR (p < 0.0001), while the CG did not. The EEG group participants were 4.4 times (95% confidence interval: 1.1 to 17.5) more likely to improve beyond the MDC than the CG. No significant differences were found between the groups for LBP, leg pain or lumbar flexion. Conclusion: The choice of words when applying a treatment in physiotherapy can alter the efficacy of the treatment.
Reference Key
louw2016southa Use this key to autocite in the manuscript while using SciMatic Manuscript Manager or Thesis Manager
Authors ;Adriaan Louw;Kory Zimney;Merrill R. Landers;Mark Luttrell;Bob Clair;Joshua Mills
Journal international journal of rotating machinery
Year 2016
DOI
10.4102/sajp.v72i1.306
URL
https://sajp.co.za/index.php/sajp/article/view/306
Keywords
ultrasound back pain placebo alliancespecial situations and conditions

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