COMPARISON OF METHODS OF ANTERIOR ABDOMINAL WALL ALLOPLASTY IN THE EXPERIMENT

Polidanov Maxim Andreevich, Vysotsky Lev Ilyich, Gavrukov Dmitry Sergeevich, Kapralov Sergey Vladimirovich, Barulina Marina Aleksandrovna, Volkov Kirill Andreevich

Due to the small number of scientific studies on alloplasty techniques for postoperative anterior abdominal wall hernias, there is still an urgent need to search for new techniques of anterior abdominal wall alloplasty, as well as the development and implementation of surgical mesh implants. The purpose of the study. Comparison of anterior abdominal wall alloplasty techniques in an acute experiment. Materials and methods of research. 36 laboratory rats of Standard breed, weighing 400±50 g, were used as biological models in the experiment. In the conditions of acute experiment, the laboratory animals under general anesthesia in aseptic conditions underwent alloplasty with a mesh implant (Esfil, RF) according to the sublay technology. Two observation groups were formed (18 operated rats in each group) depending on the performed method of alloplasty. In the 1st group alloplasty with fixation of the implant with through U-shaped sutures was performed, whereas in Group 2 the implant was not fixed. On the 21st day, material was collected for biomechanical and morphologic studies. Results. It was found that the difference in biomechanical indices after modeling prosthetic alloplasty with two different techniques (with and without fixation) was not statistically significant in the area of elastic-plastic deformations. Conclusion. In the course of biomechanical and morphological studies, it was proved that the strength of the abdominal wall in modeling posterior separation alloplasty does not depend on the method of fixation of the implant to the abdominal muscles.

Keywords:ventral hernias; prosthetic alloplasty; biomechanical properties of mesh implants; biomechanical study of prosthetic alloplasty properties, morphological evaluation.