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Related Experiment Video

Updated: Aug 9, 2025

Generation of a Three-dimensional Full Thickness Skin Equivalent and Automated Wounding
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Three-dimensional wound flattening method for mapping skin mechanical properties based on finite element method.

Xiaogang Ji1,2, Guangquan Wen1, Hao Gong3,4

  • 1School of Mechanical Engineering, Jiangnan University, Wuxi, Jiangsu, China.

Computer Methods in Biomechanics and Biomedical Engineering
|February 24, 2023
PubMed
Summary

This study introduces a 3D wound flattening method using finite element analysis to accurately design skin flaps for wound repair. This approach improves flap design, reducing risks like infection and necrosis in clinical applications.

Keywords:
Morphological flatteningdeformation energyfinite element methodmechanical properties of skin

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Area of Science:

  • Biomedical Engineering
  • Computational Mechanics
  • Plastic Surgery

Background:

  • Skin flap transplantation is crucial for wound repair, but current flap design methods are imprecise, leading to complications.
  • Accurate and individualized preoperative flap design is essential to improve surgical outcomes and minimize risks like infection and necrosis.

Purpose of the Study:

  • To develop an accurate, individualized preoperative flap design method for skin wound repair.
  • To integrate 3D wound geometry with skin mechanical properties using finite element analysis.

Main Methods:

  • Acquired 3D wound point cloud data using a 3D scanner and established a hierarchical wound model.
  • Developed a geometric flattening method incorporating a 'deformed point' concept for complex wound surfaces.
  • Measured mechanical properties of pig skin via static tensile testing and established a unit material model based on deformation energy.
  • Proposed a finite element optimization method for flap shape based on material deformation energy.

Main Results:

  • The proposed method successfully generated a flattened wound model incorporating mechanical properties.
  • Finite element optimization adjusted flap shape to minimize overall deformation energy.
  • Clinical validation demonstrated the method's reliability for guiding preoperative flap design.

Conclusions:

  • The developed 3D wound flattening and finite element method offers a reliable approach for precise preoperative flap design.
  • This technique enhances the accuracy of skin flap design, potentially reducing complications in clinical wound repair.
  • The method provides a valuable preliminary guide for surgeons in planning skin flap transplantation procedures.