Evidence map›Paper›PMID 36468146›Full record

ArticleHeliyon2022

Unilateral pedicle screw fixation of lumber spine: A safe internal fixation method.

Simengge Yang, Honggang Xia, Menglin Cong, Anyun Guo, Kai Ma, Mingzhi Song

Abstract read
In one paragraph

Article in Heliyon, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 6 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
6citing papers in PubMed, 1 pooled it
–field-weighted citation impact
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

6 citing papers in PubMed, 1 synthesis or guideline pooled it.

  1. Pooled it
  2. Article
  3. Article
  4. Article
  5. Minimally invasive transforaminal lumbar interbody fusion with unilateral pedicle screw fixation (UNILF): outcomes at 7 years.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 · 2024
    Article
  6. 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

6 authors.

Simengge YangDepartment of Orthopaedics, The First Affiliated Hospital of Dalian Medical University, Dalian, Liaoning, China.
Honggang XiaDepartment of Orthopaedics, The First Affiliated Hospital of Dalian Medical University, Dalian, Liaoning, China.
Menglin CongDepartment of Orthopaedics, Qilu Hospital of Shandong University, Jinan, Shandong, China.
Anyun GuoDepartment of Joint Trauma, Shenzhen University General Hospital, Shenzhen, Guangdong, China.
Kai MaDepartment of Orthopaedics, The First Affiliated Hospital of Dalian Medical University, Dalian, Liaoning, China.
Mingzhi SongDepartment of Orthopaedics, The First Affiliated Hospital of Dalian Medical University, Dalian, Liaoning, China.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Background: Unilateral pedicle screw fixation several advantages, including reduced trauma and low cost. However, its stability and safety have not been widely recognized. In this study, the biomechanical differences in the vertebral body and screw-rod system after unilateral and bilateral pedicle screw fixation were compared using both the finite element model and calf lumbar model. Method: We used the verified finite element model to establish unilateral and bilateral posterior lumbar surgery models. The biomechanical data of different parts of the models were recorded under different working states. Then, three calf lumbar models were selected to simulate different working states with the help of a universal testing machine and other instruments. Finally, the biomechanical data of the screw-rod system were obtained from a static strain test and analysis system. Results: By analyzing and comparing biomechanical data obtained using two different methods, this study found that unilateral pedicle screw fixation does not bring excessive loads to the lumbar spine and screw-rod system. Conclusion: From the perspective of biomechanics, unilateral pedicle screw fixation is considered a safe and reliable implantation technique.

Indexed as

Finite element analysisScrew-rod systemSpinal biomechanicsStressUnilateral pedicle screw fixation

Identifiers

PMID36468146
PMCPMC9713276

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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.