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Manipulation-induced hypoalgesia in musculoskeletal pain populations: A systematic critical review and meta-analysis
Journal article   Open access

Manipulation-induced hypoalgesia in musculoskeletal pain populations: A systematic critical review and meta-analysis

Chiropractic & Manual Therapies, Vol.27, 7
2019
PMCID: PMC6350309
PMID: 30719281
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Published1.19 MBDownloadView
Published (Version of Record)CC BY V4.0 Open Access

Abstract

Adult adverse effects Aged epidemiology Female Humans Hypesthesia Hypoalgesia Male Manipulation, Chiropractic Middle Aged Musculoskeletal pain Pain sensitivity Pain Threshold psychology Quantitative sensory testing Spinal manipulative therapy
Background Manipulation-induced hypoalgesia (MIH) represents reduced pain sensitivity following joint manipulation, and has been documented in various populations. It is unknown, however, whether MIH following high-velocity low-amplitude spinal manipulative therapy is a specific and clinically relevant treatment effect. Methods This systematic critical review with meta-analysis investigated changes in quantitative sensory testing measures following high-velocity low-amplitude spinal manipulative therapy in musculoskeletal pain populations, in randomised controlled trials. Our objectives were to compare changes in quantitative sensory testing outcomes after spinal manipulative therapy vs. sham, control and active interventions, to estimate the magnitude of change over time, and to determine whether changes are systemic or not. Results Fifteen studies were included. Thirteen measured pressure pain threshold, and four of these were sham-controlled. Change in pressure pain threshold after spinal manipulative therapy compared to sham revealed no significant difference. Pressure pain threshold increased significantly over time after spinal manipulative therapy (0.32 kg/cm2, CI 0.22–0.42), which occurred systemically. There were too few studies comparing to other interventions or for other types of quantitative sensory testing to make robust conclusions about these. Conclusions We found that systemic MIH (for pressure pain threshold) does occur in musculoskeletal pain populations, though there was low quality evidence of no significant difference compared to sham manipulation. Future research should focus on the clinical relevance of MIH, and different types of quantitative sensory tests. Trial registration Prospectively registered with PROSPERO (registration CRD42016041963).

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Collaboration types
Domestic collaboration
International collaboration
Citation topics
1 Clinical & Life Sciences
1.129 Back pain
1.129.98 Low Back Pain
Web Of Science research areas
Rehabilitation
ESI research areas
Clinical Medicine
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