Method for predicting the presence of intrapelvic anastomoses of the inferior gluteal artery

Objective - to develop mathematical models to determine the likelihood of having intrapelvic anastomoses of the inferior gluteal artery (IGA) in men and women.

Materials and methods. Numerical data for discriminant analysis were obtained as a result of studies on 132 unfixed corpses of men (aged 40 to 60 years) and 60 corpses of women (aged 35 to 74 years). To achieve the set goal, the following methods were used: preparation, morphometry, injection of blood vessels, somatotyping, mathematical modeling.

Results. It was found that statistically significant predictor variables for the linear discriminant function are the values of the length and diameter of the IGA in men and women. The probability of presence of intrapelvic anastomoses of the IGA in men, determined using a mathematical model, was 89.6%, in women - 91.0%. The assignment of each new study case to a group of males with a high or low probability of having intrapelvic anastomoses can be calculated using the following formulas: y₀=-305,534+1,912x₁+4,36x₂ and y₁=-324,91+4,543x₁+6,599x₂, in groups of females - y₀=-17,997+5,425x₁+5,509x₂ and y₁=-56,263+10,249x₁+9,298x₂. Where x₁ is the value of the diameter of the IGA for each new case and x₂ is the value of the length of the IGA for each new case. If y₀>y₁, then the man or woman belongs to the group with a low probability of having intrapelvic anastomoses of the IGA. If y₀<y₁, then people belong to a group with a high probability of having similar intrapelvic collaterals.

Conclusion. The developed mathematical models can predict the presence or absence of intrapelvic anastomoses of the IGA in men and women with sufficiently high accuracy.

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