Evidence map›Paper›PMID 31418044›Full record

ArticleInternational urogynecology journal2020

New Zealand white rabbit: a novel model for prolapse mesh implantation via a lumbar colpopexy.

Katrina M Knight, Amanda M Artsen, Megan R Routzong, Gabrielle E King, Steven D Abramowitch, Pamela A Moalli

Open access · greenAbstract read
In one paragraph

Article in International urogynecology journal, 2020. 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
1.7field-weighted citation impact, top 16% 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, 15 citations in OpenAlex.

  1. Chapter 4.5: New Proposed Treatments for Pelvic Organ Prolapse.International urogynecology journal · 2026
    Review
  2. Article
  3. Article
  4. Article
  5. Review
  6. Current practice in animal models for pelvic floor dysfunction.International urogynecology journal · 2023
    Review
  7. Review
  8. Article
  9. Article
  10. Article
  11. Contractile Properties of Vaginal Tissue.Journal of biomechanical engineering · 2020
    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

6 authors at 1 institution in 1 country.

Katrina M KnightDepartment of Medicine, University of Pittsburgh, Pittsburgh, PA, USA. kmk144@pitt.edu.ORCID http://orcid.org/0000-0003-3633-7281
Amanda M ArtsenMagee-Womens Research Institute, Department of Obstetrics and Gynecology and Reproductive Sciences at Magee Womens Hospital, University of Pittsburgh, Pittsburgh, PA, USA.
Megan R RoutzongDepartment of Bioengineering, University of Pittsburgh, Pittsburgh, PA, USA.
Gabrielle E KingMagee-Womens Research Institute, Department of Obstetrics and Gynecology and Reproductive Sciences at Magee Womens Hospital, University of Pittsburgh, Pittsburgh, PA, USA.
Steven D AbramowitchMagee-Womens Research Institute, Department of Obstetrics and Gynecology and Reproductive Sciences at Magee Womens Hospital, University of Pittsburgh, Pittsburgh, PA, USA.
Pamela A MoalliMagee-Womens Research Institute, Department of Obstetrics and Gynecology and Reproductive Sciences at Magee Womens Hospital, University of Pittsburgh, Pittsburgh, PA, USA.
University of Pittsburgh · US

Funding

NRSA Training CoreTL1TR001858 · NCATS · UNIVERSITY OF PITTSBURGH AT PITTSBURGH · PI RADOMSKI, THOMAS, RUBIO, DORIS M · 2016 to 2025
$11.1M
Porosity and tensioning: Critical factors to consider when choosing a prolapse meshR01HD083383 · NICHD · MAGEE-WOMEN'S RES INST AND FOUNDATION · PI ABRAMOWITCH, STEVEN D, MOALLI, PAMELA A. · 2016 to 2025
$5.5M
Overcoming complications of polypropylene prolapse meshes: Development of novel elastomeric membranesR01HD097187 · NICHD · MAGEE-WOMEN'S RES INST AND FOUNDATION · PI Katrina Marquita Knight, Pamela A. Moalli · 2019 to 2026
$3.9M
NCATS NIH HHS TL1 TR001858NICHD NIH HHS R01 HD083383NICHD NIH HHS R01 HD097187NIH HHS TL1TR001858US Department of Defense W81XWH-16-1-0133
6 · The paper itself

Abstract

introduction and hypothesisNew Zealand white rabbits are an inexpensive large-animal model. This study explored the rabbit as a model for mesh-augmented colpopexy using the intra-abdominal vagina. We hypothesized that polypropylene mesh would negatively impact rabbit vaginal smooth muscle (VSM) morphology and contractile function, similar to the nonhuman primate (NHP)-the established model for prolapse mesh evaluation.

methodsRestorelle was implanted onto the vagina of ten rabbits via lumbar colpopexy after a hysterectomy. Ten rabbits served as sham. Twelve weeks post-implantation, the vagina was excised and VSM morphology and vaginal contractility were assessed. Outcome measures were compared using independent samples t and Mann-Whitney U tests with a Bonferroni correction, where appropriate. Results from the rabbits were compared with published NHP data.

resultsAnimals had similar age, parity and BMI. VSM was 18% thinner after Restorelle implantation, P = 0.027. Vaginal contractility was 43% decreased in response to 120 mM KCl (P = 0.003), similar to the 46% reduction observed in the NHP vagina implanted with Restorelle (P = 0.027). Three meshes wrinkled in vivo, resulting in dramatic thinning of the underlying vagina in the area of the mesh causing a mesh exposure.

conclusionsPolypropylene mesh negatively impacts VSM morphology and vaginal contractility in the rabbit, similar to the NHP, suggesting that the rabbit may serve as an alternative large-animal model. The vaginal thinning and appearance of a mesh exposure in the area of a mesh wrinkle suggest the rabbit may also serve as a model for understanding the pathophysiology of mesh exposure.

Indexed as

Surgical MeshAnimalsColposcopyDisease Models, AnimalEquipment DesignFemaleLumbar VertebraePelvic Organ ProlapsePolypropylenesProsthesis ImplantationRabbitsVaginaPolypropylenesLumbar colpopexyModified abdominal sacrocolpopexyNew Zealand white rabbitPelvic organ prolapsePolypropylene meshVaginal smooth muscle

Identifiers

PMID31418044
PMCPMC7061177
OpenAlexW2968682881

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.