关键词: 造口旁疝, 腹壁, 生物力学, 黏弹性, 各向异性

Abstract: Analysis of the occurrence and development of parastomal hernia from the structure and biomechanics of abdominal wall        CHEN Shuang*，WANG Hui，WU Ding-cai. *Department of Gastroenterological Surgery and Hernia Center，the Sixth Affiliated Hospital of Sun Yatsen University，Guangzhou 510655，China
Corresponding author：CHEN Shuang，E-mail：chensh2@mail.sysu.edu.cn
Abstract    Parastomal hernia is one of the most common complications after enterostomy. The normal abdominal wall is a symmetrical structure，forming a relatively closed and pressure-balanced abdominal cavity，and the stoma breaks this symmetry and balance. At the same time，under the influence of the movement of the colon and the mechanical characteristics of the abdominal wall，the occurrence of parastomal hernia seems inevitable. Sooner or later，it depends on the balance between the damage of the stoma to "abdominal functional unit" and the compensation and coordination of "abdominal functional unit". To prevent parastomal hernia，we need to pay attention to the stoma on the abdominal wall，especially the position of the stoma and the inclination of the stomal bowel through the abdominal wall. Because once the initial stomal hernia is formed，it is only a matter of time before it develops into a parastomal hernia with clinical symptoms and signs. For treatment of parastomal hernia，endoscopic surgery has significant advantages，particularly the Sugarbaker，which is superior to Kehole in terms of surgical principles and mechanical properties of the abdominal wall，as demonstrated by postoperative recurrence rates.

Key words: parastomal hernia, abdominal wall, biomechanics, viscoelastic, anisotropy