Aortic parameters identification for boundary conditions in one-dimensional coronary blood flow model

The aim of the study is to evaluate the effectiveness of periacetabular osteotomy as a treatment for hip dysplasia using finite element analysis. The main criterion for the effectiveness of surgical intervention is the reduction of contact pressure on the surface of articular cartilage. Three-dimensional finite element models reflecting the anatomy of the joint before and after osteotomy are prepared for six patients with hip dysplasia based on computed tomography data. A comparative analysis of the distribution of contact pressure in articular cartilages, as well as the stress-strain state of bone structures, is performed. The results show that four out of six patients after osteotomy have a decrease in the maximum contact pressure on the cartilage of the acetabulum, which indicates a positive biomechanical effect of the operation. In one patient, the changes are insignificant, and in one, an increase in contact pressure is noted. The results obtained confirm that computer engineering technologies make it possible to predict the biomechanical consequences of surgical interventions and evaluate their individual effectiveness: the results vary depending on the patient’s anatomy, which underlines the importance of a personalized approach and the high potential of finite element analysis as a tool for detailed preoperative planning.