Evidence map›Paper›PMID 35089418›Full record

ArticleEuropean spine journal : official publication of the European Spine Society, the European Spinal Deformity Society, and the European Section of the Cervical Spine Research Society2022

Advanced disc degeneration, bi-planar instability and pathways of peri-discal gas suffusion contribute to pathogenesis of intradiscal vacuum phenomenon.

Rishi M Kanna, Swapnil Hajare, Pushpa Bhari Thippeswamy, Ajoy Prasad Shetty, S Rajasekaran

Registry-linked trialAbstract read
PubMed Publisher
In one paragraph

Article in 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, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT06029764 (Extended One-level Interbody Fusion for Adjacent Vacuum Phenomenon in Lumbar Degenerative Disc Disease), which is not on this map. Cited by 14 papers.

0numbers the graph read from it
0cells of the map it votes in
14citing papers in PubMed
2.5field-weighted citation impact, top 10% 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.

NCT06029764 narecruitingnot on this mapstarted 2023, after this paper: background citation

Extended One-level Interbody Fusion for Adjacent Vacuum Phenomenon in Lumbar Degenerative Disc Disease

TypeinterventionalSponsorXuanwu Hospital, BeijingRan2023 to 2029Enrolled126ConditionsAdjacent Segment DegenerationArmsextended one-level interbody fusion
3 · Its place in the literature

Who cites it

14 citing papers in PubMed, 19 citations in OpenAlex.

  1. Running is associated with intervertebral disc adaptations: a pre-planned secondary analysis of the ASTEROID randomised controlled trial.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
    Trial
  2. Article
  3. Letter to the Editor concerning "Could alteration in the vacuum phenomenon rather than its presence be a sign of spinal instability?" by EE Özcan Ekşi, et al. (Eur Spine J [2025]; doi: 10.1007/s00586-025-09198-w).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
  4. Review
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  6. Do all symptomatic adjacent segment diseases (ASD) require surgery? a prognostic classification and predictors of surgical treatment of lumbar ASD.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 · 2025
    Article
  7. Observational
  8. Article
  9. Article
  10. Article
  11. Article
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  13. Intradiscal vacuum phenomenon matches lumbar spine degeneration patterns in an ageing population.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 · 2024
    Article
  14. Association between lumbar intervertebral vacuum phenomenon severity and posterior paraspinal muscle atrophy in patients undergoing spine surgery.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 · 2024
    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

5 authors at 1 institution in 1 country.

Rishi M KannaDepartment of Orthopaedics and Spine Surgery, Ganga Hospital, Coimbatore, Tamil Nadu, India. rishiortho@gmail.com.ORCID 0000-0001-5817-4909
Swapnil HajareDepartment of Orthopaedics and Spine Surgery, Ganga Hospital, Coimbatore, Tamil Nadu, India.
Pushpa Bhari ThippeswamyDepartment of Radiology, Ganga Hospital, Coimbatore, Tamil Nadu, India.
Ajoy Prasad ShettyDepartment of Orthopaedics and Spine Surgery, Ganga Hospital, Coimbatore, Tamil Nadu, India.
S RajasekaranDepartment of Orthopaedics and Spine Surgery, Ganga Hospital, Coimbatore, Tamil Nadu, India.
Ganga Hospital · IN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

purposeIntradiscal vacuum phenomenon (IDVP), despite being ubiquitous, is poorly understood. The dynamic passage of peri-discal gases into the degenerated disc is a commonly accepted theory. But the reasons behind its selective appearance in some discs are unevaluated.

methods721 patients with chronic low back pain ± radiculopathy, were evaluated with AP and flexion-extension lateral radiographs and MRI. IDVP was classified based on its morphology and location. Radiographic parameters including sagittal translation, sagittal angulation, lateral listhesis, eccentric disc collapse, Pfirrmann's grade, disc height, Modic changes, anterior longitudinal ligament status, and primary spinal disease at the level of IDVP was analyzed.

resultsIDVP was present in 342 patients, and they had a higher mean age (57.2 ± 12.5 years) than controls (p < 0.001). Eccentric disc space narrowing (26.5% vs 1.3%, p < 0.01), coronal listhesis (7.83% vs 1.1%, p < 0.001), sagittal angular motion difference (11.3 ± 4.6°, p < 0.001), higher mean disc degeneration (4.36 ± 0.69, p < 0.001), ALL disruption (30.3% vs 2.2%, p < 0.001) and Modic changes (88.6% vs 17.5%, p < 0.001) were significantly higher in IDVP discs (vs. non-IDVP). Binary logistic regression analysis indicated sagittal angular motion difference was the most predictive factor. IDVP was classified into three types-dense type (47.5%), linear (29.5%), dot type (23%). Dense type matched radiological correlations of IDVP while dot types behaved like non-IDVP discs.

conclusionModic disc-endplate contacts, ALL disruption and coronal translation could be pathways for the passage of peri-discal gases into the degenerated disc. In the pathogenesis of IDVP, advanced disc degeneration, the presence of pathways of gas transfer and angular/coronal instability seem to play complementary roles.

Indexed as

Intervertebral Disc DegenerationLow Back PainAdultAgedGasesHumansLumbar VertebraeMagnetic Resonance ImagingMiddle AgedVacuumGasesClassificationInstabilityInter-vertebralLumbarVacuum phenomenon

Identifiers

PMID35089418
OpenAlexW4210413026

What OpenQuestion holds

Textmetadata
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.