ALGORITHM FOR ELIMINATION OF ANGULAR DEFORMATIONS OF THE BONES FORMING THE KNEE JOINT IN CHILDREN

The results of treatment of pediatric patients with deformities of the bones forming the knee joint were analyzed. At the same time, it was found that in patients with frontal deformities over 30 degrees, as well as in patients with shortened limb segments over 10–15%, multiplanar deformities of the knee joint area are observed, one of which is a pronounced violation of the biomechanical axis of the limb. When analyzing the long-term results of treatment of patients with angular deformities of the bones that form the knee joint according to the traditional Ilizarov method, it was revealed that the restoration of the biomechanical axis of the limb does not occur when the deformity is eliminated due to the formation of a wedge-shaped distraction regenerate. The axle breaking is even getting worse. A feature of the traditional layout of the Ilizarov apparatus, when used in these cases, is the inability to restore the biomechanical axis of the limb. This is the reason for the overload of one of the femoral condyles and the development of early gonarthrosis and the patient's disability. As for the occurrence of deformity recurrence in the postoperative period, it should be noted that one of them is the non-elimination of one of the multiplanar deformity components, in particular, the lack of correction of the biomechanical axis of the limb. Taking into account the causes of the above complications, we have developed additional units for the Ilizarov apparatus, which allow correct restoration of the limb axis at any stage of the formation of the distraction regenerate. We have proposed an algorithm for eliminating the deformity, taking into account the restoration of the limb axis, which makes it possible to achieve better long-term results in the treatment of this group of patients and prevent the development of early gonarthrosis.