Evidence map›Paper›PMID 35050963›Full record

SynthesisPain2022

Nerve pathology and neuropathic pain after whiplash injury: a systematic review and meta-analysis.

Joel Fundaun, Melissa Kolski, Georgios Baskozos, Andrew Dilley, Michele Sterling, Annina B Schmid

Abstract readMeta-AnalysisSystematic Review
In one paragraph

Synthesis in Pain, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 22 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
22citing papers in PubMed, 1 pooled it
–field-weighted citation impact
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.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

22 citing papers in PubMed, 1 synthesis or guideline pooled it.

  1. Pooled it
  2. Article
  3. Semaphorins and Their Role in Neuropathic Pain.Life (Basel, Switzerland) · 2026
    Review
  4. Article
  5. Skin inflammatory cytokine gene expression in chronic whiplash-associated disorder: a cross-sectional study.European spine journal : official publication of the European Spine Society, the European Spinal Deformity Society, and the European Section of the Cervical Spine Research Society · 2026
    Article
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  8. Article
  9. Article
  10. Review
  11. Article
  12. Observational
  13. Article
  14. Article
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  17. Article
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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

6 authors.

Joel FundaunNuffield Department of Clinical Neurosciences, The University of Oxford, Oxford, United Kingdom.ORCID 0000-0001-6025-0077
Melissa KolskiDepartment of Physical Therapy and Human Movement Sciences, Northwestern University, Feinberg School of Medicine, Chicago, IL, United States.ORCID 0000-0002-8341-3171
Georgios BaskozosNuffield Department of Clinical Neurosciences, The University of Oxford, Oxford, United Kingdom.ORCID 0000-0001-9237-5878
Andrew DilleyBrighton and Sussex Medical School, University of Sussex, Brighton, United Kingdom.
Michele SterlingRECOVER Injury Research Centre, NHMRC Centre of Research Excellence in Recovery Following Road Traffic Injuries, The University of Queensland, Brisbane, Queensland, Australia.ORCID 0000-0003-1772-2248
Annina B SchmidNuffield Department of Clinical Neurosciences, The University of Oxford, Oxford, United Kingdom.ORCID 0000-0001-7759-0211

Funding

Department of HealthDiabetes UK 19/0005984Medical Research Council MR/W002388/1Versus Arthritis 22465Wellcome Trust 222101
6 · The paper itself

Abstract

abstractThere is no clear understanding of the mechanisms causing persistent pain in patients with whiplash-associated disorder (WAD). The aim of this systematic review was to assess the evidence for nerve pathology and neuropathic pain in patients with WAD. EMBASE, PubMed, CINAHL (EBSCO), and MEDLINE were searched from inception to September 1, 2020. Study quality and risk of bias were assessed using the Newcastle-Ottawa Quality Assessment Scales. Fifty-four studies reporting on 390,644 patients and 918 controls were included. Clinical questionnaires suggested symptoms of predominant neuropathic characteristic in 34% of patients (range 25%-75%). The mean prevalence of nerve pathology detected with neurological examination was 13% (0%-100%) and 32% (10%-100%) with electrodiagnostic testing. Patients independent of WAD severity (Quebec Task Force grades I-IV) demonstrated significantly impaired sensory detection thresholds of the index finger compared with controls, including mechanical (SMD 0.65 [0.30; 1.00] P < 0.005), current (SMD 0.82 [0.25; 1.39] P = 0.0165), cold (SMD -0.43 [-0.73; -0.13] P = 0.0204), and warm detection (SMD 0.84 [0.25; 1.42] P = 0.0200). Patients with WAD had significantly heightened nerve mechanosensitivity compared with controls on median nerve pressure pain thresholds (SMD -1.10 [-1.50; -0.70], P < 0.0001) and neurodynamic tests (SMD 1.68 [0.92; 2.44], P = 0.0004). Similar sensory dysfunction and nerve mechanosensitivity was seen in WAD grade II, which contradicts its traditional definition of absent nerve involvement. Our findings strongly suggest a subset of patients with WAD demonstrate signs of peripheral nerve pathology and neuropathic pain. Although there was heterogeneity among some studies, typical WAD classifications may need to be reconsidered and include detailed clinical assessments for nerve integrity.

Indexed as

NeuralgiaWhiplash InjuriesHumansSurveys and Questionnaires

Identifiers

PMID35050963
PMCPMC7612893

What OpenQuestion holds

Textmetadata
LicenceCC BY
Read underepoch 390

Registered trials

None linked

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.