Evidence map›Paper›PMID 17122623›Full record

ArticleAnnals of surgery2006

Precultivation of engineered human nasal cartilage enhances the mechanical properties relevant for use in facial reconstructive surgery.

Jian Farhadi, Ilario Fulco, Sylvie Miot, Dieter Wirz, Martin Haug, Sally C Dickinson, Anthony P Hollander, A U Daniels, Gerhard Pierer, Michael Heberer and 1 more

Open access · greenAbstract read
In one paragraph

Article in Annals of surgery, 2006. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 16 papers.

0numbers the graph read from it
0cells of the map it votes in
16citing papers in PubMed
2.1field-weighted citation impact, top 13% 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

16 citing papers in PubMed, 56 citations in OpenAlex.

  1. Review
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  10. In vivo implantation of tissue-engineered human nasal septal neocartilage constructs: a pilot study.Otolaryngology--head and neck surgery : official journal of American Academy of Otolaryngology-Head and Neck Surgery · 2012
    Article
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  13. Injectable biomaterials for regenerating complex craniofacial tissues.Advanced materials (Deerfield Beach, Fla.) · 2009
    Article
  14. Article
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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

11 authors at 2 institutions in 1 country.

Jian FarhadiDepartment of Surgery and of Research, University Hospital Basel, Switzerland. jfarhadi@uhbs.ch
Ilario Fulco
Sylvie Miot
Dieter Wirz
Martin Haug
Sally C Dickinson
Anthony P Hollander
A U Daniels
Gerhard Pierer
Michael Heberer
Ivan Martin
University Hospital of Basel · CHUniversity of Basel · CH

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

objectiveTo investigate if precultivation of human engineered nasal cartilage grafts of clinically relevant size would increase the suture retention strength at implantation and the tensile and bending stiffness 2 weeks after implantation. SUMMARY BACKGROUND INFORMATION: To be used for reconstruction of nasal cartilage defects, engineered grafts need to be reliably sutured at implantation and resist to bending/tension forces about 2 weeks after surgery, when fixation is typically removed.

methodsNasal septum chondrocytes from 4 donors were expanded for 2 passages and statically loaded on 15 x 5 x 2-mm size nonwoven meshes of esterified hyaluronan (Hyaff-11). Constructs were implanted for 2 weeks in nude mice between muscle fascia and subcutaneous tissue either directly after cell seeding or after 2 or 4 weeks of preculture in chondrogenic medium. Engineered tissues and native nasal cartilage were assessed histologically, biochemically, and biomechanically.

resultsEngineered constructs reproducibly developed with culture time into cartilaginous tissues with increasing content of glycosaminoglycans and collagen type II. Suture retention strength was significantly higher (3.6 +/- 2.2-fold) in 2-week precultured constructs than in freshly seeded meshes. Following in vivo implantation, tissues further developed and maintained the original scaffold size and shape. The bending stiffness was significantly higher (1.8 +/- 0.8-fold) if constructs were precultured for 2 weeks than if they were directly implanted, whereas tensile stiffness was close to native cartilage in all groups.

conclusionIn our experimental setup, preculture for 2 weeks was necessary to engineer nasal cartilage grafts with enhanced mechanical properties relevant for clinical use in facial reconstructive surgery.

Indexed as

RhinoplastyTissue EngineeringAdultAnimalsChondrocytesHumansHyaluronic AcidMiceMiddle AgedNasal SeptumPliabilitySuture TechniquesTensile StrengthTissue Culture TechniquesHyaluronic Acidhyaluronic acid benzyl ester

Identifiers

PMID17122623
PMCPMC1856618
OpenAlexW2107880081

What OpenQuestion holds

Textmetadata
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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.