Evidence map›Paper›PMID 33627163›Full record

Trial reportChiropractic & manual therapies2021

Spinal manipulation and modulation of pain sensitivity in persistent low back pain: a secondary cluster analysis of a randomized trial.

Casper Glissmann Nim, Kenneth Arnold Weber, Gregory Neill Kawchuk, Søren O'Neill

Registry-linked trialOpen access · goldAbstract readRandomized Controlled Trial
In one paragraph

Trial report in Chiropractic & manual therapies, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT04086667 (What Determines a Positive Outcome of Spinal Manipulation for Persistent Low Back Pain), which is not on this map. Cited by 11 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
11citing papers in PubMed, 1 pooled it
2.3field-weighted citation impact, top 13% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

NCT04086667 nacompletednot on this map

What Determines a Positive Outcome of Spinal Manipulation for Persistent Low Back Pain: Stiffness or Pain Sensitivity? A Randomized Trial

TypeinterventionalSponsorSpine Centre of Southern DenmarkRan2017 to 2019Enrolled132ConditionsLow Back Pain, Pain, ChronicArmsSpinal manipulation
3 · Its place in the literature

Who cites it

11 citing papers in PubMed, 1 synthesis or guideline pooled it, 19 citations in OpenAlex.

  1. Pooled it
  2. Article
  3. Spine-Prints: Transposing Brain Fingerprints to the Spinal Cord.bioRxiv : the preprint server for biology · 2025
    Article
  4. Article
  5. Quantitative sensory testing in dogs with spontaneous osteoarthritis.Frontiers in pain research (Lausanne, Switzerland) · 2025
    Article
  6. Article
  7. The Neurophysiological Lesion: A Scoping Review.Journal of chiropractic medicine · 2023
    Article
  8. Article
  9. Article
  10. Article
  11. Time to evolve: the applicability of pain phenotyping in manual therapy.The Journal of manual & manipulative therapy · 2022
    Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

4 authors at 3 institutions in 3 countries.

Casper Glissmann NimMedical Research Unit, Spine Center of Southern Denmark, University Hospital of Southern Denmark, Østrehougvej 55, 5500, Middelfart, Denmark. casper.nim@rsyd.dk.ORCID 0000-0001-5845-2622
Kenneth Arnold WeberDepartment of Anesthesiology, Perioperative and Pain Medicine, Stanford University, Stanford, USA.
Gregory Neill KawchukDepartment of Physical Therapy, University of Alberta, Edmonton, Canada.
Søren O'NeillMedical Research Unit, Spine Center of Southern Denmark, University Hospital of Southern Denmark, Østrehougvej 55, 5500, Middelfart, Denmark.
University of Southern Denmark · DKStanford Medicine · USUniversity of Alberta · CA

Funding

Neuroimaging-Based Brain and Spinal Cord Biomarkers for Cervical RadiculopathyK23NS104211 · NINDS · STANFORD UNIVERSITY · PI WEBER, KENNETH ARNOLD · 2018 to 2022
$875k
NINDS NIH HHS K23 NS104211NINDS NIH HHS L30 NS108301
6 · The paper itself

Abstract

backgroundPain hypersensitivity can be assessed using Quantitative Sensory Testing (QST) and is associated with persistent low back pain. Spinal manipulation appears to modify pain hypersensitivity, and this could function as one mechanism leading to clinical improvements. In the current study, we applied a comprehensive QST battery to assess pain sensitivity in a cohort of low back pain patients before and after spinal manipulation to improve our understanding of the association between QST and clinical improvements. This study addresses two questions: Are clinical improvements following spinal manipulation in low back pain patients contingent on pain hypersensitivity, and does pain sensitivity change following spinal manipulation?

methodsWe performed a secondary analysis of data from a randomized clinical trial. One hundred and thirty-two participants with persistent LBP were treated with spinal manipulation four times over two weeks. Patient-reported outcomes and QST were assessed at baseline, after the fourth spinal manipulation session, and 14-days later. The clinical outcomes were changes in low back pain intensity and disability. Using latent profile analysis, we categorized the participants into clusters depending on their baseline QST scores. We used linear mixed models to examine the association between clusters and changes in patient-reported outcomes and QST.

resultsTwo clusters emerged: a Sensitized and a Not sensitized. The former had significantly lower regional pressure and thermal pain thresholds, remote pressure pain tolerance, and lower inhibitory conditioned pain modulation than the Not sensitized group. However, we only found between-cluster differences for regional pressure pain threshold following spinal manipulation. Thus, the clusters were not associated with patient-reported pain and disability changes or the remaining QST outcomes.

conclusionsWe report that the baseline QST profile was not associated with clinical improvements following spinal manipulation. We did observe a substantial change for regional pressure pain threshold, which suggests that any effect of spinal manipulation on pain sensitivity is most likely to be observed as changes in regional, mechanical pain threshold. However, the mechanism that invokes clinical improvement and pain sensitivity changes appear distinct. Due to methodological caveats, we advise caution when interpreting the results.

trial registrationClinical.Trial.gov identifier: NCT04086667 , registered 11 September 2019 - Retrospectively registered, https://clinicaltrials.gov/ct2/show/NCT04086667.

Indexed as

AdultCluster AnalysisDisability EvaluationFemaleHumansLow Back PainMaleManipulation, SpinalMiddle AgedPain MeasurementPain ThresholdPatient Reported Outcome MeasuresChronic painLow back painPain modulationPressure pain thresholdQuantitative sensory testingSpinal manipulation

Identifiers

PMID33627163
PMCPMC7903787
OpenAlexW3132967811

What OpenQuestion holds

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LicenceCC BY
Read underepoch 390

Registered trials

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.