Evidence map›Paper›PMID 38470860›Full record

ArticleAesthetic surgery journal2024

Long-term Insights: Histopathological Assessment of Polyurethane Implant Capsules Over 24 Years.

Gisela H Pontes, Clara P W Ramos, Lucia de Noronha, Fernando Serra-Guimarães, Amanda S Cavalcanti, Ana Paula F Barbosa, Maria Eugenia L Duarte

Open access · hybridAbstract read
In one paragraph

Article in Aesthetic surgery journal, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 7 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
7citing papers in PubMed, 1 pooled it
4.0field-weighted citation impact, top 6% 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

7 citing papers in PubMed, 1 synthesis or guideline pooled it, 7 citations in OpenAlex.

  1. Pooled it
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  5. Review
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  7. Review
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 6 institutions in 1 country.

Clara P W Ramos
Lucia de Noronha
Fernando Serra-Guimarães
Amanda S Cavalcanti
Ana Paula F Barbosa
Maria Eugenia L Duarte
Universidade do Estado do Rio de Janeiro · BRD’Or Institute for Research and Education · BRFundação Técnico Educacional Souza Marques · BRInstituto Nacional de Traumatologia e Ortopedia · BRPontifícia Universidade Católica do Paraná · BRUniversidade Federal de Alagoas · BR

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundPolyurethane (PU)-coated breast implants are known for their strong integration into breast tissue and the formation of capsules around them. However, capsular contracture can pose both aesthetic and clinical challenges.

objectivesThe objectives of this study were to analyze the biological and morphological characteristics of the capsular tissue surrounding PU-coated implants, irrespective of their contracture status, and to assess their potential suitability as a flap in revisional breast surgery for capsular contracture.

methodsA total of 23 tissue samples were harvested from the capsules surrounding PU-coated breast implants in 12 female patients during replacement or revisional surgery. We evaluated collagen abundance, cellular and vascular density, inflammation, collagen band types and alignment, synovial metaplasia, capsule thickness, and the expression of inflammatory biomarkers and myofibroblasts with immunohistochemical techniques. Scanning electron microscopy was employed to assess implant surface characteristics over time.

resultsWe found a significant association of capsule contraction with longer implantation durations and greater implant surface roughness (P = .018 and P = .033, respectively). Synovial metaplasia was significantly more frequent in noncontracted capsules (P = .0049). Both capsule types consisted of paucicellular, type I collagen-rich compact fibrous tissue with low vascularization. There was a marked reduction in inflammatory cells within the foreign body granuloma. The expression of inflammatory biomarkers in the capsular tissue was negligible.

conclusionsGiven the reduced levels of inflammatory and vascular components within the dense, fibrous capsular tissue, we consider them to be viable alternatives for capsular flaps in revisional surgery. This strategy has the potential to mimic the reconstruction achieved with acellular dermal matrix. LEVEL OF EVIDENCE: 4:

Indexed as

Breast ImplantationBreast ImplantsImplant Capsular ContracturePolyurethanesAdultCoated Materials, BiocompatibleFemaleHumansMetaplasiaMicroscopy, Electron, ScanningMiddle AgedProsthesis DesignReoperationSurface PropertiesTime FactorsCoated Materials, BiocompatiblePolyurethanes

Identifiers

PMID38470860
PMCPMC11334203
OpenAlexW4392677926

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Registered trials

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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.