Exploring the Impact of Female Anal Sphincter Injury on Anal Canal Pressure Using Finite Element Analysis
Objective To investigate the influence of different degrees of internal anal sphincter(IAS)damage in women on anal stress-pressure using finite element analysis.Methods A surface model of the anal canal of a healthy adult woman was constructed using Mimics software.Based on previous research data,ABAQUS software was used to analyze the stress-pressure distribution characteristics of IAS under different damage conditions from a biomechanical perspective.Results From a vertical incision height of 5mm at the base,damage to IAS at different depths showed a decrease in anal resting pressure with increasing depth,but no significant change in squeeze pressure.Damage at different heights from the base showed minimal impact on anal pressure when above 15mm from the base.Damage at different heights showed a significant increase in anal pressure impairment and model collapse deformation when the damage exceeded 10mm.Conclusion The finite element model of the anal sphincter complex obtained accurately reflects the stress-pressure distribution characteristics of the anal canal during IAS damage simulation,highlighting the importance of diagnosing and treating the mid-anal canal IAS in clinical practice.
万方数据
维普
