Related Experiment Video
Updated: Dec 29, 2025
08:09
Vessel-sparing Excision and Primary Anastomosis
Published on: January 7, 2019
11.9K
Comparison of two different bowel anastomosis types using finite volume method
Yavuz Pirhan1, Kadir Gök2, Arif Gök3
1Department of General Surgery, Sabuncuoğlu Şerefeddin Research and Training Hospital, Amasya University, Amasya, Turkey.
Computer Methods in Biomechanics and Biomedical Engineering
|February 4, 2020
Summary
Functional end-to-end anastomosis reduces turbulence and vortex formation compared to side-to-side techniques in bowel surgery. This fluid dynamics analysis suggests it offers a safer surgical option with a lower leakage probability.
Area of Science:
- Gastrointestinal Surgery
- Biomedical Engineering
- Fluid Dynamics
Background:
- Bowel surgery frequently employs side-to-side and functional end-to-end anastomosis techniques.
- Understanding the fluid dynamics of these techniques is crucial for surgical outcomes.
Purpose of the Study:
- To compare the fluid dynamics of side-to-side versus functional end-to-end anastomosis.
- To evaluate flow velocity, pressure, turbulence, and wall shear stress in both models.
Main Methods:
- 3D modeling using SolidWorks.
- Computational Fluid Dynamics (CFD) analysis with Ansys Fluent.
- Calculation of flow parameters including velocity, pressure, and turbulence.
Main Results:
- Functional end-to-end anastomosis exhibited less turbulence and vortex formation.
- Wider intersecting bowel area in functional end-to-end anastomosis facilitated easier flow.
- Lower turbulence in functional end-to-end anastomosis suggests improved safety.
Conclusions:
- Functional end-to-end anastomosis demonstrates superior fluid dynamic properties.
- Reduced turbulence and wider flow area contribute to its preference in surgical practice.
- The technique is considered safer due to a lower probability of leakage.
