CRYOTUNNELIZATION IN TREATMENT FOR ASEPTIC NECROSIS OF HEAD OF THE FEMUR IN CHILDREN (A CLINICAL CASE)

Keywords: osteochondropathy, Perthes disease, bone regeneration, subdestructive cryo influence
Abstarct: The experience of biostimulation operation by cryo influence on necrotic head of the femur was described. The exposition of cryo agent influence was selected by experimental study in animals and own survey results. The destruction degree depended on tissue cooling velocity, cooling agent temperature and exposition duration. Due to exposition diminishment it was possible to delimit destructive heat drainage and to exert definite influence on tissues in subdestructive (cryostimulation) dosage. The novelty of the suggested technique was as follows: the original nitinol tube with double walls was placed after the tunnelization of trochanterian neck and head of the femur in accordance with the patent taken out. Subdestructive cooling of osteonecrosis focus in a child with Perthes disease with restoration of bone tissue structure provided supporting foothold ability and improved the quality of life. As the result the certain influence on necrotic head of the femur turned out well to activate reparative processes.

BULLETIN
of the Ivanovo Medical Academy^{ISSN 1606-8157}