Evidence map›Paper›PMID 36054510›Full record

ArticleOrthopaedic surgery2022

Effects of Chemical Sterilization and Gamma Irradiation on the Biochemical and Biomechanical Properties of Human Tendon Allografts In Vitro Study.

Hao-Ran Zhang, Ming-You Xu, Lei Zhang, Hao Zhang, Li Yang, Jie Liu, Jing-Yu Zhang, Yong-Cheng Hu

Open access · goldAbstract read
In one paragraph

Article in Orthopaedic surgery, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers.

0numbers the graph read from it
0cells of the map it votes in
4citing papers in PubMed
1.7field-weighted citation impact, top 18% 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

4 citing papers in PubMed, 10 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

8 authors at 3 institutions in 1 country.

Hao-Ran ZhangDepartment of Bone Tumor, Tianjin Hospital, Tianjin, China.ORCID https://orcid.org/0000-0002-7929-9003
Ming-You XuGraduate School, Tianjin Medical University, Tianjin, China.ORCID https://orcid.org/0000-0001-8957-6572
Lei ZhangBeijing Wonderful Medical Biomaterial Co. Ltd., Beijing, China.
Hao ZhangGraduate School, Tianjin Medical University, Tianjin, China.ORCID https://orcid.org/0000-0002-7377-0589
Li YangGraduate School, Tianjin Medical University, Tianjin, China.ORCID https://orcid.org/0000-0002-0220-6200
Jie LiuGraduate School, Tianjin Medical University, Tianjin, China.
Jing-Yu ZhangDepartment of Bone Tumor, Tianjin Hospital, Tianjin, China.ORCID https://orcid.org/0000-0003-4924-6418
Yong-Cheng HuDepartment of Bone Tumor, Tianjin Hospital, Tianjin, China.ORCID https://orcid.org/0000-0002-9846-6735
Tianjin Hospital · CNTianjin Medical University · CNBeijing Biocytogen (China) · CN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

objectivePre-implantation sterilization procedures for tendons are important measures to reduce the risk of disease transmission, however these procedures may compromise tendon microarchitecture and biomechanical properties to varying degrees. We explore the effects of different sterilization procedures on the micro-histology, biomechanical strength and biochemical properties of human tendon allografts in vitro study.

methodsThe tendon allografts were harvested from cadaveric donors after the donors were serologically screened by antibody or nucleic acid testing of infectious agents. All samples were divided into five groups, which were fresh-frozen group (control group), 15 kGy gamma irradiation group, 25 kGy gamma irradiation group, 70% ethanol group, and peracetic acid-ethanol group. Each group included 10 tendons for testing. Histological staining and transmission electron microscopy were applied to observe the internal structure and arrangement of tendon collagen fibers, while the machine learning classifier was trained to distinguish the darker cross-sections of collagen fibers and brighter backgrounds of the electron micrograph to detect the distribution of diameters of tendon collagen fibers. The viscoelasticity, mechanical properties and material properties of tendon allografts were examined to detect the influence of different intervention factors on the biomechanical properties of tendons.

resultsHistological staining and transmission electron microscopy showed that the structure of fresh-frozen tendons was similar to the structures of other experimental groups, and no obvious fiber disorder or delamination was observed. In the uniaxial cyclic test, the cyclic creep of 25 kGy irradiation group (1.5%) and peracetic acid-ethanol group (1.5%) were significantly lower than that of the control group (3.6%, F = 1.52, P = 0.039) while in the load-to-failure test, the maximum elongation and maximum strain of the peracetic acid-ethanol group were significantly higher than those of the control group (F = 4.60, P = 0.010), and there was no significant difference in other biomechanical indicators. According to the experimental results of denatured collagen, it could be seen that no matter which disinfection procedure was used, the denaturation of the tendon sample would be promoted (F = 1.97, P = 0.186), and high-dose irradiation seemed to cause more damage to collagen fibers than the other two disinfection procedures (296.2 vs 171.1 vs 212.9 μg/g).

conclusionBiomechanical experiments and collagen denaturation tests showed that 15 kGy gamma irradiation and 70% ethanol can preserve the biomechanical strength and biochemical properties of tendons to the greatest extent, and these two sterilization methods are worthy of further promotion.

Indexed as

Nucleic AcidsPeracetic AcidAllograftsBiomechanical PhenomenaEthanolGamma RaysHumansSterilizationTendonsEthanolNucleic AcidsPeracetic AcidBiochemistryBiomechanical propertyGamma irradiationHistologyPeracetic acidTendon allograft

Identifiers

PMID36054510
PMCPMC9531057
OpenAlexW4292883634

What OpenQuestion holds

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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.