Evidence map›Paper›PMID 30572849›Full record

ArticleBMC musculoskeletal disorders2018

Latent infection of low-virulence anaerobic bacteria in degenerated lumbar intervertebral discs.

Guoqing Tang, Zhuo Wang, Ji Chen, Zhengshi Zhang, Hongbin Qian, Yong Chen

Open access · goldAbstract read
In one paragraph

Article in BMC musculoskeletal disorders, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 24 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
24citing papers in PubMed, 1 pooled it
2.2field-weighted citation impact, top 12% 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.

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

24 citing papers in PubMed, 1 synthesis or guideline pooled it, 38 citations in OpenAlex.

  1. Evidence for infection in intervertebral disc degeneration: a systematic review.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
    Pooled it
  2. Article
  3. Article
  4. Review
  5. mNGS technique was used to analyze the microbiome structure of intervertebral disc tissue in 99 patients with degenerative disc disease.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
  6. Review
  7. Article
  8. Article
  9. Frailty is a predictor of immediate postoperative complications following surgical management of knee dislocations.European journal of orthopaedic surgery & traumatology : orthopedie traumatologie · 2024
    Article
  10. Article
  11. Article
  12. Review
  13. WouldJournal of personalized medicine · 2023
    Article
  14. Article
  15. Cytokine Imbalance as a Biomarker of Intervertebral Disk Degeneration.International journal of molecular sciences · 2023
    Review
  16. Review
  17. Anaerobic spondylodiscitis: a retrospective analysis.BMC musculoskeletal disorders · 2022
    Article
  18. Review
  19. Article
  20. Review
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 at 1 institution in 1 country.

Guoqing TangOrthopedic Center, Kunshan Hospital of Traditional Chinese Medicine, Kunshan, Suzhou, 215000, China.
Zhuo WangOrthopedic Center, Kunshan Hospital of Traditional Chinese Medicine, Kunshan, Suzhou, 215000, China.
Ji ChenOrthopedic Center, Kunshan Hospital of Traditional Chinese Medicine, Kunshan, Suzhou, 215000, China.
Zhengshi ZhangOrthopedic Center, Kunshan Hospital of Traditional Chinese Medicine, Kunshan, Suzhou, 215000, China.
Hongbin QianOrthopedic Center, Kunshan Hospital of Traditional Chinese Medicine, Kunshan, Suzhou, 215000, China.
Yong ChenOrthopedic Center, Kunshan Hospital of Traditional Chinese Medicine, Kunshan, Suzhou, 215000, China. chenyongspine@163.com.ORCID http://orcid.org/0000-0002-5701-7191
Shanghai University of Traditional Chinese Medicine · CN

Funding

the National Natural Science Foundation of china NSFC 81802180the Natural Science Foundation of Jiangsu Province BK20161274the Natural Science Foundation of Suzhou kjxw2015056the Science and Technology Bureau of Kunshan KS1547
6 · The paper itself

Abstract

backgroundThe existence of latent low-virulence anaerobic bacteria in degenerated intervertebral discs (IVDs) remains controversial. In this study, the prevalence of low-virulence anaerobic bacteria in degenerated IVDs was examined, and the correlation between bacterial infection and clinical symptoms was analysed.

methodsEighty patients with disc herniation who underwent discectomy were included in this study. Under a stringent protocol to ensure sterile conditions, 80 disc samples were intraoperatively retrieved and subjected to microbiological culture. Meanwhile, tissue samples from the surrounding muscle and ligaments were harvested and cultured as contamination markers. The severity of IVD degeneration and the prevalence of Modic changes (MCs) were assessed according to preoperative MRI analysis.

resultsOf the 80 cultured discs, 54 were sterile, and 26 showed the presence of bacteria: Propionibacterium acnes (21 cases) and coagulase-negative staphylococci (5 cases). MRI revealed that the presence of bacteria was significantly associated with MCs (P<0.001). However, there was no significant association between bacterial infection and the severity of IVD degeneration (P = 0.162).

conclusionsOur findings further validated the presence of low-virulence anaerobic bacteria in degenerated IVDs, and P. acnes was the most frequent bacterium. In addition, the latent infection of bacteria in IVDs was associated with Modic changes. Therefore, low-virulence anaerobic bacteria may play a crucial role in the pathophysiology of MCs and lumbar disc herniation.

Indexed as

AdultAgedDiskectomyFemaleGram-Positive Bacterial InfectionsHumansIntervertebral DiscIntervertebral Disc DegenerationIntervertebral Disc DisplacementLumbar VertebraeMagnetic Resonance ImagingMaleMiddle AgedPropionibacterium acnesSeverity of Illness IndexStaphylococcal InfectionsCoagulase-negative staphylococciDisc herniationLow-virulence anaerobic bacteriaModic changesPropionibacterium acnes

Identifiers

PMID30572849
PMCPMC6302300
OpenAlexW2905060028

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.