Evidence map›Paper›PMID 30157885›Full record

ArticleJournal of orthopaedic surgery and research2018

M2 macrophages are closely associated with accelerated clavicle fracture healing in patients with traumatic brain injury: a retrospective cohort study.

Ran Zhang, Yi Liang, Shuxiang Wei

Open access · goldAbstract read
In one paragraph

Article in Journal of orthopaedic surgery and research, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 23 papers.

0numbers the graph read from it
0cells of the map it votes in
23citing papers in PubMed
1.9field-weighted citation impact, top 15% 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

23 citing papers in PubMed, 36 citations in OpenAlex.

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  6. Bidirectional Interaction Between the Brain and Bone in Traumatic Brain Injury.Advanced science (Weinheim, Baden-Wurttemberg, Germany) · 2025
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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

3 authors at 1 institution in 1 country.

Ran ZhangDepartment of Orthopedics, Liuzhou General Hospital, 8 Wenchang Rd, Liuzhou, 545006, Guangxi, China. zr7971@126.com.
Yi LiangDepartment of Orthopedics, Liuzhou General Hospital, 8 Wenchang Rd, Liuzhou, 545006, Guangxi, China.
Shuxiang WeiDepartment of Orthopedics, Liuzhou General Hospital, 8 Wenchang Rd, Liuzhou, 545006, Guangxi, China.
Liuzhou General Hospital · CN

Funding

the Science and Technology Program of Liuzhou 2015J030524
6 · The paper itself

Abstract

backgroundMounting evidence indicate patients with traumatic brain injury (TBI) have an accelerated fracture healing. The healing process of bone fractures is greatly dependent on infiltrated macrophages. The macrophages are categorized into M1 or M2 phenotypes with different functions. This study is aimed to address the potential role of subtypes of macrophages in the process of fracture healing in patients with TBI.

methodsTwenty-five cases of clavicle fracture alone (CF group) and 22 cases of clavicle fracture concomitant with TBI (CFT group) were retrospectively analyzed in this study. Callus tissues were harvested during operations. The expressions of COX-2, CD206, and CD68 were measured with immunohistochemistry.

resultsThe percentages of M2 macrophages in total macrophages increased after bone fracture in both groups, while the percentages of M1-type macrophages are decreased. Interestingly, the increased percentages of M2 macrophages are significantly higher in CFT group than in CF group. Compared to CF group, the fracture callus volume was much larger (21.9 vs 8.5 cm

conclusionsThe findings suggest that the percentages of M2 macrophages in callus tissues increased dramatically during the repairing stage in both CF and CFT group. Percentages of M2 macrophages are associated with accelerated fracture healing in patients with TBI. M2 macrophage polarization during the stage of bone regeneration may play a vital role in promoting bone fracture healing.

Indexed as

Brain Injuries, TraumaticFracture HealingMacrophagesAdultClavicleFemaleFractures, BoneHumansMaleMiddle AgedRetrospective StudiesYoung AdultClavicle fractureFracture healingMacrophagesTraumatic brain injury

Identifiers

PMID30157885
PMCPMC6114273
OpenAlexW2889325830

What OpenQuestion holds

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LicenceCC BY
Read underepoch 390

Registered trials

None linked

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.