Evidence map›Paper›PMID 31679187›Full record

ArticleOrthopaedic surgery2019

Dynamic Change of Lumbar Structure and Associated Factors: A Retrospective Study.

Jian-Lu Wei, Yan-Bin Zhu, Da-Wang Zhao, Wei Chen, Juan Wang, Hong Wang, Jia-Li Lv, Tao Zhang, Lei Cheng, Ying-Ze Zhang

Open access · goldAbstract read
In one paragraph

Article in Orthopaedic surgery, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers.

0numbers the graph read from it
0cells of the map it votes in
3citing papers in PubMed
0.6field-weighted citation impact, top 30% 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

3 citing papers in PubMed, 8 citations in OpenAlex.

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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

10 authors at 4 institutions in 2 countries.

Jian-Lu WeiDepartment of Orthopaedic Surgery, Qilu Hospital, Shandong University, Jinan, China.
Yan-Bin ZhuKey Laboratory of Biomechanics of Hebei Province, Orthopaedic Research Institution of Hebei Province, Shijiazhuang, China.
Da-Wang ZhaoDepartment of Orthopaedic Surgery, Qilu Hospital, Shandong University, Jinan, China.
Wei ChenKey Laboratory of Biomechanics of Hebei Province, Orthopaedic Research Institution of Hebei Province, Shijiazhuang, China.
Juan WangKey Laboratory of Biomechanics of Hebei Province, Orthopaedic Research Institution of Hebei Province, Shijiazhuang, China.
Hong WangDepartment of Radiology, Qilu Hospital, Shandong University, Jinan, China.
Jia-Li LvDepartment of Epidemiology and Biostatistics, School of Public Health, Jinan, China.
Tao ZhangDepartment of Epidemiology and Biostatistics, School of Public Health, Jinan, China.
Lei ChengDepartment of Orthopaedic Surgery, Qilu Hospital, Shandong University, Jinan, China.
Ying-Ze ZhangKey Laboratory of Biomechanics of Hebei Province, Orthopaedic Research Institution of Hebei Province, Shijiazhuang, China.ORCID https://orcid.org/0000-0002-9477-1521
Hebei Medical University · CNQilu Hospital of Shandong University · CNCancer Research And Biostatistics · USHospital of Hebei Province · CN

Funding

China Postdoctoral Science Foundation Grant 2019M651064National Natural Science Foundation of China 81900804Science Foundation of Qilu Hospital of Shandong University 2017QLQN08Shandong Provence Natural Science Foundation ZR2019BH071
6 · The paper itself

Abstract

objectiveTo determine whether lumbar anatomy parameters are in dynamic change and related factors.

methodsThis is a retrospective study. Participants who did lumbar computed tomography (CT) scanning in Shandong University Qilu Hospital from October 2017 to March 2019 were selected. The 476 participants were randomly selected as male or female, with the age ranging from 17 to 87 years (mean, 55.19; standard deviation, 14.28 years). All the measurements were taken based on the CT scanning image and the measurement of lumbar morphology was conducted using picture archiving and communication systems (PACS). The angle between the horizontal alignment and pedicle center on median sagittal view, the angle between upper endplate and lower endplate on median sagittal view as well as transverse section angle (TSA) using Magerl point in the axial view was determined by reconstructive CT analysis.

resultsIn the overall participants, the angle between the horizontal alignment and pedicle center on median sagittal view of lumbar one to three was significantly decreased with aging, from 3.90° ± 2.81° to -4.18° ± 6.86° (P = 0.002), 5.60° ± 2.89° to -4.14° ± 5.90° (P = 0.030), and 4.75° ± 2.95° to -2.87° ± 4.68° (P < 0.001), respectively. Additionally, the angle between the horizontal alignment and pedicle center on median sagittal view in male participants of lumbar two was dramatically decreased, from 4.83° ± 2.79° to -4.45° ± 5.97° (P = 0.30). And that of lumbar three in female participants was significantly decreased, from 4.56° ± 2.52° to -2.88° ± 5.03° (P = 0.029). Furthermore, of the overall participants, the angle between upper endplate and lower endplate on median sagittal view of lumbar one to four was associated with aging (P < 0.001, P < 0.001, P = 0.015, P < 0.001, respectively). The angle of lumbar one, two and four in male participants and lumbar one to four in female participants were all significantly related to aging (all P < 0.05). Moreover, in the participants overall, the TSA of lumbar one to three was significantly associated with aging (P = 0.015, P = 0.006 and P = 0.007, respectively). In addition, this angle in lumbar one to lumbar four in male participants were all negatively associated with aging (P = 0.017, P = 0.001, P = 0.005 and P = 0.036, respectively).

conclusionLumbar anatomy parameters are in dynamic change in an age and gender dependent manner. During spine surgery in elderly patients, more attention should be paid to these anatomic changes.

Indexed as

AdolescentAdultAgedAged, 80 and overAge FactorsFemaleHumansLumbar VertebraeMaleMiddle AgedRetrospective StudiesSex FactorsTomography, X-Ray ComputedYoung AdultAgingDynamic changeGenderKyphosisLumbar anatomy parameters

Identifiers

PMID31679187
PMCPMC6904611
OpenAlexW2984956134

What OpenQuestion holds

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LicenceCC BY
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Registered trials

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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.