Evidence map›Paper›PMID 29026131›Full record

ArticleScientific reports2017

Mechanical stress induces elastic fibre disruption and cartilage matrix increase in ligamentum flavum.

Kazunori Hayashi, Akinobu Suzuki, Sayed Abdullah Ahmadi, Hidetomi Terai, Kentaro Yamada, Masatoshi Hoshino, Hiromitsu Toyoda, Shinji Takahashi, Koji Tamai, Shoichiro Ohyama and 4 more

Open access · goldAbstract read
In one paragraph

Article in Scientific reports, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 23 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
23citing papers in PubMed, 1 pooled it
2.0field-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.

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

23 citing papers in PubMed, 1 synthesis or guideline pooled it, 43 citations in OpenAlex.

  1. Pooled it
  2. Article
  3. Article
  4. [Finite element modeling and simulation study of solid-liquid biphase fiber-reinforced lumbar intervertebral disc].Sheng wu yi xue gong cheng xue za zhi = Journal of biomedical engineering = Shengwu yixue gongchengxue zazhi · 2025
    Article
  5. Review
  6. Article
  7. Article
  8. Article
  9. Review
  10. Article
  11. Article
  12. Article
  13. Review
  14. Review
  15. Article
  16. Article
  17. Article
  18. Article
  19. Article
  20. 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

14 authors at 1 institution in 1 country.

Kazunori HayashiDepartment of Orthopaedic Surgery, Osaka City University Graduate School of Medicine, Osaka, Japan.
Akinobu SuzukiDepartment of Orthopaedic Surgery, Osaka City University Graduate School of Medicine, Osaka, Japan. a-suzuki@msic.med.osaka-cu.ac.jp.ORCID 0000-0003-4800-9226
Sayed Abdullah AhmadiDepartment of Orthopaedic Surgery, Osaka City University Graduate School of Medicine, Osaka, Japan.
Hidetomi TeraiDepartment of Orthopaedic Surgery, Osaka City University Graduate School of Medicine, Osaka, Japan.
Kentaro YamadaDepartment of Orthopaedic Surgery, Osaka City University Graduate School of Medicine, Osaka, Japan.
Masatoshi HoshinoDepartment of Orthopaedic Surgery, Osaka City University Graduate School of Medicine, Osaka, Japan.
Hiromitsu ToyodaDepartment of Orthopaedic Surgery, Osaka City University Graduate School of Medicine, Osaka, Japan.
Shinji TakahashiDepartment of Orthopaedic Surgery, Osaka City University Graduate School of Medicine, Osaka, Japan.
Koji TamaiDepartment of Orthopaedic Surgery, Osaka City University Graduate School of Medicine, Osaka, Japan.
Shoichiro OhyamaDepartment of Orthopaedic Surgery, Osaka City University Graduate School of Medicine, Osaka, Japan.
Akgar JavidDepartment of Orthopaedic Surgery, Osaka City University Graduate School of Medicine, Osaka, Japan.
Mohammad Suhrab RahmaniDepartment of Orthopaedic Surgery, Osaka City University Graduate School of Medicine, Osaka, Japan.
Maruf Mohammad HasibDepartment of Orthopaedic Surgery, Osaka City University Graduate School of Medicine, Osaka, Japan.
Hiroaki NakamuraDepartment of Orthopaedic Surgery, Osaka City University Graduate School of Medicine, Osaka, Japan.
Osaka City University · JP

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Lumbar spinal stenosis (LSS) is one of the most frequent causes of low back pain and gait disturbance in the elderly. Ligamentum flavum (LF) hypertrophy is the main pathomechanism of LSS, but the reason for its occurrence is not clearly elucidated. In this study, we established a novel animal model of intervertebral mechanical stress concentration and investigated the biological property of the LF. The LF with mechanical stress concentration showed degeneration with elastic fibres disruption and cartilage matrix increase, which are similar to the findings in hypertrophied LF from patients with LSS. By contrast, decreased Col2a1 expression was found in the LF at fixed levels, in which mechanical stress was strongly reduced. These findings indicate that mechanical stress plays a crucial role in LF hypertrophy through cartilage matrix increase. The findings also suggest that fusion surgery, which eliminates intervertebral instability, may change the property of the LF and lead to the relief of patients' symptoms.

Indexed as

Stress, MechanicalAnimalsElastic TissueHumansLigamentum FlavumLow Back PainLumbar VertebraeMaleRabbitsRange of Motion, ArticularReal-Time Polymerase Chain Reaction

Identifiers

PMID29026131
PMCPMC5638934
OpenAlexW2763391192

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.