METHOD FOR SURGICAL TREATMENT OF LEGG-CALVE-PERTHES DISEASE IN CHILDREN Russian patent published in 2020 - IPC A61B17/56 A61K35/16 A61P19/08 

FIELD: medicine.

SUBSTANCE: invention refers to medicine, particularly to traumatology and pediatric orthopedics. Venous blood is taken and platelet-enriched plasma is prepared therefrom. Water-soluble iodine-containing radiopaque substance is added to the prepared plasma at ratio of 3:1, respectively. Transosteal tunnel with a diameter of up to 3 mm is formed transcutaneously under a greater trochanter of a femoral bone in the direction of the femoral neck central axis to the peripheral edge of the epiphyseal cartilage. Through the formed tunnel with pins of diameter 1.8 mm, through channels are formed fan-like around it with their outlet into the joint cavity at the point of connection of the femoral head with its neck excluding their passage through the peripheral edge of the epiphyseal cartilage. Needle is inserted to the blind end of the tunnel, and under the X-ray control, the previously prepared plasma is injected through it to create excess pressure; the needle is gradually withdrawn until the tunnel and the through channels are completely filled with plasma penetration into the hip joint cavity.

EFFECT: invention provides more effective minimally invasive method of restoring the anatomical structure of the femoral head including both a subchondral bone and an articular cartilage, with avoiding mechanical traumatisation of the peripheral edge of the epiphyseal cartilage performing a bone-forming function during postnatal bone growth by performing all stages of treatment through a single surgical approach, increasing the area of contact of the active substance with the surface of both the cartilage and the subchondral bone owing to topographic and anatomical features of the arrangement of the through canals.

1 cl, 1 ex, 4 dwg