Evidence map›Paper›PMID 32264901›Full record

ArticleJournal of orthopaedic surgery and research2020

Influence of cement-augmented pedicle screw instrumentation in an osteoporotic lumbosacral spine over the adjacent segments: a 3D finite element study.

Quan-Kun Zhou, Fan-Hui Zeng, Jian-Long Tu, Zhang-Qing Dong, Zhi-Hui Ding

Open access · goldAbstract read
In one paragraph

Article in Journal of orthopaedic surgery and research, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 15 papers.

0numbers the graph read from it
0cells of the map it votes in
15citing 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.

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

15 citing papers in PubMed, 29 citations in OpenAlex.

  1. Article
  2. Cement leakage risk reduction and propensity score matching analysis of clinical efficacy for Cement-Augmented fenestrated pedicle screw in patients with osteoporosis.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
  3. Article
  4. Article
  5. Article
  6. Article
  7. Article
  8. Roles of Chemokines in Intervertebral Disk Degeneration.Current pain and headache reports · 2024
    Review
  9. Article
  10. Article
  11. Article
  12. Article
  13. Article
  14. Article
  15. 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.

Quan-Kun ZhouNanchang Hongdu Hospital of Traditional Chinese Medicine, 264 Minde Road, Donghu District, Nanchang, 330006, Jiangxi, People's Republic of China.
Fan-Hui ZengNanchang Hongdu Hospital of Traditional Chinese Medicine, 264 Minde Road, Donghu District, Nanchang, 330006, Jiangxi, People's Republic of China. zengfanghui510@163.com.
Jian-Long TuNanchang Hongdu Hospital of Traditional Chinese Medicine, 264 Minde Road, Donghu District, Nanchang, 330006, Jiangxi, People's Republic of China.
Zhang-Qing DongNanchang Hongdu Hospital of Traditional Chinese Medicine, 264 Minde Road, Donghu District, Nanchang, 330006, Jiangxi, People's Republic of China.
Zhi-Hui DingNanchang Hongdu Hospital of Traditional Chinese Medicine, 264 Minde Road, Donghu District, Nanchang, 330006, Jiangxi, People's Republic of China.
Jiangxi University of Traditional Chinese Medicine · CN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

purposeTo compare the effect of conventional pedicle screw (CPS) and cement-augmented pedicle screw instrumentation (CAPSI) on adjacent segment degeneration (ASD).

methodsA normal male volunteer without a history of spinal disease was selected, lumbar CT data was collected, an intact L3-S1 three-dimensional finite element model was created by software including Mimics, Geomagic, and SolidWorks, and the fixation methods were performed accordingly. A common pedicle screw model and a cement-augmented pedicle screw model of L4-L5 with fusion and internal fixation were constructed. With ANSYS Workbench 17.0, a 500 N load was applied to the upper surface of L3 to simulate the weight of a human body, and a 7.5 N m moment was applied at the neutral point to simulate flexion, extension, left/right bending, left/right rotation of the spine. The peak von Mises stress of intervertebral disc and the range of motion (ROM) on the adjacent segments (L3-4 and L5-S1) were compared.

resultsThe validity of the intact model shows that the ROM of the model is similar to that of a cadaveric study. Compared with the intact model, CPS model and CAPSI model in all motion patterns increased the ROM of adjacent segments. The intervertebral disc stress and the ROM of adjacent segments were found to be higher in the CAPSI model than in the CPS model, especially in L3-4.

conclusionIn general, the biomechanical analysis of an osteoporotic lumbar spine showed that both CPS and CAPSI can increase the ROM and disc stresses of osteoporotic lumbar models, and compared with CPS, CAPSI is more likely to increase the potential risk of adjacent segment degeneration.

Indexed as

Bone CementsFinite Element AnalysisPedicle ScrewsAdultHumansImaging, Three-DimensionalLumbar VertebraeMaleOsteoporosisSacrumTomography, X-Ray ComputedBone CementsAdjacent segment;Cement-augmented pedicle screw;Finite element studyOsteoporotic lumbosacral spine;

Identifiers

PMID32264901
PMCPMC7137326
OpenAlexW3014664701

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.