Evidence map›Paper›PMID 29798628›Full record

ArticleZhongguo xiu fu chong jian wai ke za zhi = Zhongguo xiufu chongjian waike zazhi = Chinese journal of reparative and reconstructive surgery2017

[Finite element study on calcium phosphate ceramic screw implanting after removing dynamic hip screw].

Zhongyu Jia, Daiyun Yang, Yue Wang, Xiangdong Zhu, Yu Feng, Yitian Wang, Bi Wu

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PubMed Full text at PMC Publisher
In one paragraph

Article in Zhongguo xiu fu chong jian wai ke za zhi = Zhongguo xiufu chongjian waike zazhi = Chinese journal of reparative and reconstructive surgery, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

0numbers the graph read from it
0cells of the map it votes in
0citing papers in PubMed
–field-weighted citation impact, top 63% 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

0 citing papers in PubMed, 0 citations in OpenAlex.

No citing paper in PubMed yet.

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

7 authors at 2 institutions in 1 country.

Zhongyu JiaSchool of Medicine,University of Electronic Science and Technology of China, Chengdu Sichuan, 610054, P.R.China;Department of Orthopedics, the Affiliated Hospital of Electronic Science and Technology of China & Sichuan Provincial People's Hospital, Chengdu Sichuan, 610072, P.R.China.
Daiyun Yang.
Yue WangDepartment of Orthopedics, the Affiliated Hospital of Electronic Science and Technology of China & Sichuan Provincial People's Hospital, Chengdu Sichuan, 610072, P.R.China.wangyue@medmail.com.cn.
Xiangdong ZhuEngineering Research Center in Biomaterials, Sichuan University, Chengdu Sichuan, 610064, P.R.China.
Yu FengDepartment of Orthopedics, the Affiliated Hospital of Electronic Science and Technology of China & Sichuan Provincial People's Hospital, Chengdu Sichuan, 610072, P.R.China;School of Medicine, Southwest Medical University, Luzhou Sichuan, 646000, P.R.China.
Yitian WangDepartment of Orthopedics, the Affiliated Hospital of Electronic Science and Technology of China & Sichuan Provincial People's Hospital, Chengdu Sichuan, 610072, P.R.China;School of Medicine, Southwest Medical University, Luzhou Sichuan, 646000, P.R.China.
Bi WuDepartment of Orthopedics, the Affiliated Hospital of Electronic Science and Technology of China & Sichuan Provincial People's Hospital, Chengdu Sichuan, 610072, P.R.China;School of Medicine, Zunyi Medical University, Zunyi Guizhou, 563000, P.R.China.
University of Electronic Science and Technology of China · CNZunyi Medical University · CN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Objective: To investigate the validity of improving the femur's mechanical characteristics by implanting calcium phosphate ceramic screws after removing dynamic hip screw (DHS). Methods: The three dimensional finite element model of the femur was built based on the CT scanning of a normal male volunteer. Then the models of the femur with and without DHS were established. According to calcium phosphate ceramic screws with porosity and apparent elastic modulus, 80% and 0.1 GPa were set as group A, 50% and 1.0 GPa as group B, and 30% and 1.5 GPa as group C. Von Mises stress distribution and maximum stress were recorded when the joint was maximally loaded in a gait cycle. Results: The Von Mises in normal femoral shaft was uniform; no phenomena of stress concentration was observed and the maximum stress located at the joint load-bearing site of the proximal femur. The stress concentration was observed in the femur without DHS, and the maximum stress located at the distal femur around the screw hole. By comparing several different calcium phosphate ceramic screws, the stress distribution of group B was similar to normal femur model, and the maximum stress located at the joint load-bearing site. The other screws of groups A and C showed varying degrees of stress concentration. Conclusion: Implanting calcium phosphate ceramic screw can improve the mechanical characteristics of the femur after removing dynamic hip screw, and the calcium phosphate ceramic screw with 50% porosity and 1.0 GPa apparent elastic modulus is suitable for implanting.

Indexed as

Bone ScrewsCalcium PhosphatesFinite Element AnalysisAdultBiomechanical PhenomenaCeramicsFemurHumansMaleModels, AnatomicStress, MechanicalCalcium Phosphatescalcium phosphate ceramicsdynamic hip screwFemoral intertrochanteric fracturethree dimensional finite element analysis method

Identifiers

PMID29798628
PMCPMC9548032
OpenAlexW3005691861

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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.