<p>The article explores the aspects of enhancing the therapeutic effect in the design of children’s orthopedic adaptive clothing. The study addresses the construction of mathematical models to examine the leg abduction width, which <br /> ensures effective treatment of hip joint dysplasia in children under one year of age. The leg abduction width was investigated as the output parameter depending on the influencing input parameters: the child’s age, the leg abduction angle, and the wearing duration of the garment. The adequacy of the model was verified based on the relationship between the child’s age and the period of use of orthopedic clothing, between the leg abduction angle and the wearing duration, as well as between the monthly age of the child and the leg abduction angle. The analysis of isolines in coded graphs showed that in children of different ages undergoing treatment for dysplasia, the leg abduction angle gradually changes depending on the duration of wearing orthopedic adaptive clothing. These changes correspond to the coded values as an indicator of the normal adaptation process.</p> <p> </p>