2020 Annual Meeting Poster: David Sohutskay

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2020 Annual Meeting Poster: David Sohutskay

2020 Annual Meeting Poster: David Sohutskay

Presentation Title: Computational Modeling of Dermal Replacement Therapy for Difficult-to-Heal Wounds

Author Name(s): David O. Sohutskay1,2, Adrian Buganza Tepole1,3, Sherry L. Voytik-Harbin1,4

Author Department and School Affiliation: 1Weldon School of Biomedical Engineering, Purdue University, West Lafayette, IN 47907; 2Indiana University School of Medicine, Indianapolis, IN 46202; 3Department of Mechanical Engineering, Purdue University, West Lafayette, IN 47907; 4Department of Basic Medical Sciences, Purdue University, West Lafayette, IN 47907

Abstract:
Aim: Difficult-to-heal wounds lead to displeasing cosmetic outcomes and also carry a high burden of scarring, contracture, or amputation due to nonhealing. There exists a need for regenerative dermal replacement strategies that adapt and grow with the individual, but a continuing challenge is identification of optimal scaffold parameters for healing. We present a new computational model for prioritization of collagen scaffold design parameters for dermal regeneration.

Methods: In previous animal experiments, we evaluated dermal replacement scaffolds custom-fabricated from fibril-forming collagen oligomer with controlled fibril density in rat excisional wounds. We now parameterize the scaffold parameters in representative constitutive laws and developed a chemo-bio-mechanical finite element model including collagen, cells, and cytokine signaling to simulate wound healing.

Results: Collagen microstructure was quantified from scanning electron micrographs. A constitutive law for collagen mechanics was fit to uniaxial tensile tests. Using this information, we conducted preliminary three-dimensional finite element model simulations of wound contraction, recellularization, and collagen remodeling. We will iteratively inform the model by comparing computational model predictions with actual experimental outcomes.

Conclusions: We developed a mechanobiological computational model of wound healing. The model will be used to explore cell-scaffold interactions for purposes of prediction and optimization of tissue regeneration outcomes.

Keywords: collagen, mechanobiology, wound healing

|2020-09-04T16:01:18-04:00September 4th, 2020|Annual Meeting Posters|0 Comments

About the Author: Jessica Hall

Jessica Hall

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