Evidence map›Paper›PMID 40634974›Full record

ArticleJournal of orthopaedic surgery and research2025

Comparative analysis of 3D CT values for different lumbar pedicle screw trajectories.

Yuanpeng Yue, Ce Dong, Anhang Zhang, Zhenyu Wang

Abstract readComparative Study
PubMed Full text at PMC Publisher
In one paragraph

Article in Journal of orthopaedic surgery and research, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

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3 · Its place in the literature

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4 · The record

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5 · Who and what money

Authors and funding

4 authors.

Yuanpeng YueDepartment of Orthopedics, Spine Surgery, The First Hospital of Jilin University, Jilin University, 1 Xinmin Street, Changchun City, 130000, China.
Ce DongDepartment of Orthopedics, Spine Surgery, The First Hospital of Jilin University, Jilin University, 1 Xinmin Street, Changchun City, 130000, China.
Anhang ZhangDepartment of Orthopedics, Spine Surgery, The First Hospital of Jilin University, Jilin University, 1 Xinmin Street, Changchun City, 130000, China.
Zhenyu WangDepartment of Orthopedics, Spine Surgery, The First Hospital of Jilin University, Jilin University, 1 Xinmin Street, Changchun City, 130000, China. zhenyu@jlu.edu.cn.ORCID http://orcid.org/0000-0003-2688-162X

Funding

Jilin Provincial Science and Technology Development Program 20230401089YY
6 · The paper itself

Abstract

STUDY

objectivesThe average CT values of the three-dimensional (3D) trajectories of transarticular surface (TAS) screws, traditional trajectory (TT) pedicle screws, and cortical bone trajectory (CBT) screws in the L4 and L5 vertebral bodies were evaluated, providing a radiological theoretical basis for the utilization of the transarticular surface screw trajectory (TAST) at these vertebral levels.

methodsA retrospective analysis was conducted on 3D CT images of the lumbar spine from 300 patients aged 21–70 years obtained from January to August 2024. Using Mimics 21.0 software, cylindrical models were constructed to simulate three types of pedicle screws, and the average CT values of the target cylindrical area (TCA) were measured. Further exploration of the relationships between factors such as age, sex, lumbar segment, and average CT values for the TCA was conducted.

resultsAmong the different age groups, the average CT value of the CBT group was the highest, followed by those of the TAS and TT screw groups (P < 0.05). Among patients of the same gender and age group, no significant difference was found in the average CT values of the same trajectory between the L4 and L5 vertebrae. Furthermore, in the 31–40 and 41–50 age groups, no significant difference was noted in the average CT values for the CBT between males and females. However, in the 21–30, 51–60, and 61–70 age groups, the average CT values of TT, CBT, and TAST were greater in males than in females (p < 0.05).

conclusionsThe average CT values of the L4 and L5 vertebral bodies for the TAST exceed those for the TT but are lower than those for the CBT. This radiological study offers a theoretical basis for using TAS screws in the L4 and L5 vertebral bodies.

Indexed as

Imaging, Three-DimensionalLumbar VertebraePedicle ScrewsTomography, X-Ray ComputedAdultAgedFemaleHumansMaleMiddle AgedRetrospective StudiesYoung AdultCortical bone trajectory screwCT valuesPedicle screwThree-dimensional trajectoryTraditional trajectory pedicle screwTransarticular surface screw

Identifiers

PMID40634974
PMCPMC12243334

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