NEW METHOD OF ABDOMINAL WALL SURGERY IN CASE OF INCISIONAL HERNIA: COMPARATIVE EXPERIMENTAL RESEARCH

The problem of incisional hernia has become widespread due to the increase in the amount of laparotomies in abdominal surgery. After laparotomy in 4-11% cases incisional hernias occurred, which makes the problem one of the most important in abdominal and plastic surgery. The research aim is to experimentally evaluate and compare the absolute strength, increase in strength and reaching tensile strength of abdominal wall tissues after surgical treatment of incisional hernia with two different methods: Sapezhko and modified Sapezhko, the latter involving placing the mesh in the double abdominal layer. Material and methods. At the first stage of the study, incisional hernia was modeled in 36 rats. Consequently, the animals were divided into two groups. The main group consisted of 18 rats and underwent the Sapezhko surgical treatment of incisional hernia. The control group of 18 remaining rats underwent modified Sapezhko surgical treatment. On days 10, 14 and 16 the animals were taken out of the experiment. Strength of native abdominal walls of 6 rats were examined. The strength of the parts of abdominal walls was measured on the universal testing machine. Results. The findings indicate that polypropylene mesh placed in the double layer of the abdominal wall induces tighter scar formation in comparison with scars in the double layer of abdominal wall without mesh. Conclusions. The results of experimental research show that newly developed method have statistically significant advantages on the absolute strength, increase in strength and reaching tensile of strength of abdominal wall tissues.