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Related Experiment Video

Updated: May 11, 2026

Quantification of Strain in a Porcine Model of Skin Expansion Using Multi-View Stereo and Isogeometric Kinematics

Quantification of Strain in a Porcine Model of Skin Expansion Using Multi-View Stereo and Isogeometric Kinematics

Published on: April 16, 2017

On skin expansion.

Djenane C Pamplona¹, Raquel Q Velloso, Henrique N Radwanski

¹Laboratory of Membranes and Biomembranes, PUC-Rio, Rio de Janeiro, Brazil.

Journal of the Mechanical Behavior of Biomedical Materials

|May 9, 2013

Summary

This study characterizes human thorax skin expansion using in vivo analysis and finite element modeling. Results reveal skin stiffening during expansion, improving understanding of stretched skin behavior for surgical applications.

Keywords:

Biomembranes Characterization of human skin Constitutive equation Elastic foundation Finite elements Skin expanders Skin expansion

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Using Avian Skin Explants to Study Tissue Patterning and Organogenesis

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Published on: September 15, 2023

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Last Updated: May 11, 2026

Quantification of Strain in a Porcine Model of Skin Expansion Using Multi-View Stereo and Isogeometric Kinematics

Quantification of Strain in a Porcine Model of Skin Expansion Using Multi-View Stereo and Isogeometric Kinematics

Published on: April 16, 2017

Using Avian Skin Explants to Study Tissue Patterning and Organogenesis

Using Avian Skin Explants to Study Tissue Patterning and Organogenesis

Published on: September 15, 2023

Area of Science:

Biomedical Engineering
Dermatology
Materials Science

Background:

Skin expansion is a surgical technique to increase skin surface area.
Understanding the mechanical properties of skin during expansion is crucial for successful outcomes.
Previous models often simplified skin's complex biomechanical behavior.

Purpose of the Study:

To characterize the mechanical behavior of human thoracic skin during surgical expansion.
To develop and validate a finite element model for predicting skin expansion response.
To identify key material elastic parameters of the skin under tension.

Main Methods:

In vivo analysis of skin expansion at three sites on a single patient.
Numerical finite element modeling using Delfino's constitutive equation.
Experimental and mathematical investigation of skin expander number and shape.

Main Results:

Observed increasing resistance to expansion due to collagen fiber stiffening.
Identified material elastic parameters for thoracic skin.
Demonstrated the influence of expander design and placement on expansion outcomes.
Validated the finite element model against in vivo measurements.

Conclusions:

The study provides significant insights into the biomechanics of stretched human skin.
The developed model accurately predicts skin behavior during expansion.
Findings can help optimize surgical skin expansion techniques and minimize complications.