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A literature review on large intestinal hyperelastic constitutive modeling
Aroj Bhattarai1, Wojciech Kowalczyk2, Thanh Ngoc Tran1
1Department of Orthopaedic Surgery, University of Saarland, Germany.
Clinical Biomechanics (Bristol, Avon)
|August 20, 2021
Summary
Understanding colorectal tissue mechanics is vital for patient well-being and surgical outcomes. This review highlights the anisotropic nature of colorectal tissue and the need for advanced constitutive models in biomechanical research.
Area of Science:
- Biomechanics
- Biomedical Engineering
- Tissue Mechanics
Background:
- Chronic conditions significantly impact patient well-being and post-operative outcomes.
- Colorectal tissue mechanics play a crucial role in managing patient comfort and recovery.
Purpose of the Study:
- To review the current state-of-the-art in colorectal biomechanics.
- To provide updated computational resources for sophisticated colorectal tissue characterization.
Main Methods:
- Review of numerous uniaxial and multiaxial tensile experiments on colorectal tissue.
- Analysis of passive constitutive models, from simple to advanced anisotropic formulations.
- Consideration of microstructural-based tissue definitions for large deformations.
Main Results:
- Significant differences in mechanical behavior between healthy and affected colorectal tissues.
- Demonstration of strong colorectal anisotropy across tissue layers and length.
- Identification of the ineffectiveness of isotropic models under large deformations.
Conclusions:
- Anisotropic and microstructurally-informed models are essential for accurately describing colorectal tissue mechanics.
- This review serves as a valuable resource for computational modeling in colorectal research.
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