Evidence map›Paper›PMID 30804110›Full record

ArticleIn vivo (Athens, Greece)

Extent of Inflammation and Foreign Body Reaction to Porous Polyethylene

Tobias Vollkommer, Anders Henningsen, Reinhard E Friedrich, Oliver Heinrich Felthaus, Fabian Eder, Christian Morsczeck, Ralf Smeets, Sebastian Gehmert, Martin Gosau

Open access · diamondAbstract read
In one paragraph

Article in In vivo (Athens, Greece). The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 11 papers.

0numbers the graph read from it
0cells of the map it votes in
11citing papers in PubMed
1.3field-weighted citation impact, top 20% 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

11 citing papers in PubMed, 16 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

9 authors at 6 institutions in 2 countries.

Tobias Vollkommer *Department of Oral and Maxillofacial Surgery, University Medical Center Hamburg-Eppendorf, Hamburg, Germany.
Anders Henningsen *Department of Oral and Maxillofacial Surgery, University Medical Center Hamburg-Eppendorf, Hamburg, Germany a.henningsen@uke.de.
Reinhard E FriedrichDepartment of Oral and Maxillofacial Surgery, University Medical Center Hamburg-Eppendorf, Hamburg, Germany.
Oliver Heinrich FelthausDepartment of Plastic, Hand and Restoration Surgery, Caritas Hospital St. Josef, Regensburg, Germany.
Fabian EderPrivate practice, Regensburg, Germany.
Christian MorsczeckDepartment of Oral and Maxillofacial Surgery, University Medical Center-Regensburg, Regensburg, Germany.
Ralf SmeetsDepartment of Oral and Maxillofacial Surgery, University Medical Center Hamburg-Eppendorf, Hamburg, Germany.
Sebastian GehmertDepartment of Orthopaedics, University Children's Hospital Basel, Basel, Switzerland.
Martin GosauDepartment of Oral and Maxillofacial Surgery, University Medical Center Hamburg-Eppendorf, Hamburg, Germany.
University Medical Center Hamburg-Eppendorf · DECaritas-Krankenhaus St. Josef · DEInstitute for Socio-Scientific Consultancy · DEUniversität Hamburg · DEUniversity Children’s Hospital Basel · CHUniversity Hospital Regensburg · DE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

BACKGROUND/

aimHigh-density porous polyethylene (PP) offers possibilities for reconstruction in craniofacial surgery. The purpose of this study was to evaluate the extent of inflammation and foreign body reactions to PP in vitro and in vivo. MATERIALS AND

methodsCell attachment, proliferation and expression of inflammatory cytokines were assessed using murine macrophages (RAW 264.7) on two different PP materials in vitro. In vivo, Balb/c mice received PP implants at their dorsum. After sacrifice, samples were analyzed histologically and real-time PCR was used to assess expression of inflammatory cytokines.

resultsCells showed a significantly decreased proliferation (p<0.001) after 48 h and a significantly increased expression of TNF-α (p<0.05) at 24, 48 and 72 h. All animals showed foreign body cell reactions and signs of chronic inflammation. Expression of all but one of the investigated cytokines dropped to non-significant levels after an initial increase.

conclusionApplication of porous polyethylene can cause local chronic inflammatory reactions. Although clinical application seems to be immunologically safe, indication and risks should be evaluated carefully when using PP implants.

Indexed as

AnimalsBiocompatible MaterialsCytokinesForeign-Body ReactionGene Expression RegulationInflammationMiceMice, Inbred BALB CPolyethylenePorosityProstheses and ImplantsRAW 264.7 CellsTumor Necrosis Factor-alphaBiocompatible MaterialsCytokinesPolyethyleneTumor Necrosis Factor-alphabiomaterialscytokinesforeign-body reactionmacrophagesPolyethylenes

Identifiers

PMID30804110
PMCPMC6506308
OpenAlexW2915646318

What OpenQuestion holds

Textmetadata
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.