Thiel-embalmed porcine placenta: A valid and reusable microsurgical practice model

Simulation models are increasingly important for skill acquisition during microsurgery training. Prosthetics, living and non-living biological models have been proposed in the literature in the optics of recreating real-life scenarios in a controlled environment. This study aims to validate and prov...

Full description

Saved in:
Bibliographic Details
Published in:Annales de chirurgie plastique et esthétique 2021-04, Vol.66 (2), p.115-125
Main Authors: Retchkiman, M., Doucet, O., Dimitropoulos, G., Efanov, J.I., Lussier, B., Habib, F., Noël, G., Harris, P.G., Danino, M.A.
Format: Article
Language:English
Subjects:
Microchirurgie
Microsurgery
Modèles
Placenta
Simulation
Validation
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:Simulation models are increasingly important for skill acquisition during microsurgery training. Prosthetics, living and non-living biological models have been proposed in the literature in the optics of recreating real-life scenarios in a controlled environment. This study aims to validate and prove the reusability of a novel non-living biological model: the porcine placenta. A prospective comparative study was carried out to assess face and content validities of the proposed model, as well as the reusability and quality of the Thiel-embalming method. Participants were asked answer a questionnaire for each anastomosis they performed on porcine placental vessels of ≤2mm (small) and 2–4mm (large). Scores were classified according to different subgroups, either small or large vessels and first or second sessions. Reliability analysis of the questionnaire was carried out using Cronbach's α, to ensure an α>0.7. Median scores for each question were analyzed using boxplots and compared amongst each subgroup using a non-parametric independent Mann-Whitney U test. With nine participants, the Cronbach's α for each category of question was 0.867, 0.778, 0.720 and 0.593. Statistical differences were found between responses of small and large vessels on 5/10 questions, where large vessels reported higher validity. No statistical differences were found between scores of the first and second sessions. By evaluating face and content validity, the Thiel-embalmed porcine placenta has proven its suitability as a microsurgery model, especially for vessels of larger caliber. Qualities that distinguish this model is its reliable reusability, its low cost-effectiveness, and its ethical acceptability. Les modèles de simulation sont des outils importants pour l’acquisition de compétences techniques en microchirurgie. Des modèles prosthétiques et biologiques ont été décrits dans la littérature afin de créer un scénario chirurgical dans un environnement contrôlé. Cette étude a pour objectif de valider et de prouver la réutilisation d’un nouveau modèle biologique non-vivant: le placenta porcin. Une étude comparative prospective a été effectuée pour déterminer les validités apparentes et de contenu du modèle proposé, ainsi que la capacité de réutilisation avec la méthode d’embaumement Thiel. Les neuf participants devaient répondre à un questionnaire pour toutes les anastomoses effectuées. Le pointage a été classifié selon les sous-groupes, soit les vaisseaux petits (≤ 2mm) ou larges
ISSN:0294-1260
1768-319X
DOI:10.1016/j.anplas.2020.12.001