Evidence map›Paper›PMID 21489527›Full record

ArticleInjury2011

The biology of fracture healing.

Richard Marsell, Thomas A Einhorn

Abstract read
In one paragraph

Article in Injury, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 765 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
765citing 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

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

  1. Pooled it
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  5. Light stimuli attenuates inflammatory activation in primary bone marrow-derived macrophages.Photochemical & photobiological sciences : Official journal of the European Photochemistry Association and the European Society for Photobiology · 2026
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705 more citing papers are in PubMed but not listed here.

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

2 authors.

Richard MarsellDepartment of Orthopaedic Surgery, Uppsala University Hospital, Entrance 61, Uppsala SE-75185, Sweden. richard.marsell@surgsci.uu.se
Thomas A Einhorn

Funding

Role of VEGF in Fracture RepairP01AR049920 · NIAMS · BOSTON UNIVERSITY MEDICAL CAMPUS · PI BARNES, GEORGE L · 2004 to 2008
$5.4M
NIAMS NIH HHS P01 AR049920
6 · The paper itself

Abstract

The biology of fracture healing is a complex biological process that follows specific regenerative patterns and involves changes in the expression of several thousand genes. Although there is still much to be learned to fully comprehend the pathways of bone regeneration, the over-all pathways of both the anatomical and biochemical events have been thoroughly investigated. These efforts have provided a general understanding of how fracture healing occurs. Following the initial trauma, bone heals by either direct intramembranous or indirect fracture healing, which consists of both intramembranous and endochondral bone formation. The most common pathway is indirect healing, since direct bone healing requires an anatomical reduction and rigidly stable conditions, commonly only obtained by open reduction and internal fixation. However, when such conditions are achieved, the direct healing cascade allows the bone structure to immediately regenerate anatomical lamellar bone and the Haversian systems without any remodelling steps necessary. In all other non-stable conditions, bone healing follows a specific biological pathway. It involves an acute inflammatory response including the production and release of several important molecules, and the recruitment of mesenchymal stem cells in order to generate a primary cartilaginous callus. This primary callus later undergoes revascularisation and calcification, and is finally remodelled to fully restore a normal bone structure. In this article we summarise the basic biology of fracture healing.

Indexed as

Bone and BonesBone RegenerationBone RemodelingFemaleFracture HealingFractures, BoneHumansInflammation MediatorsMaleMesenchymal Stem CellsTumor Necrosis Factor-alphaInflammation MediatorsTumor Necrosis Factor-alpha

Identifiers

PMID21489527
PMCPMC3105171

What OpenQuestion holds

Textmetadata
LicenceTDM
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.