Abstract
Objective - to study the effect of tunnelization and apparatus hip decompression on the state of proximal femur growing plate. Material and methods. A pattern of changes in proximal femur growing plate of the affected and intact extremities was investigated in 46 children with III degree Perthes disease. The follow-up was 3 years. To unload the affected joint, an external fixator (most often, the Ilizarov apparatus) was placed on pelvic and femoral bones, which was used in a mode of non-articulating arthrodiastasis. The measurements of width of proximal femur growing zone were performed on pelvic bones rentgenograms in anteroposterior projection with internal hip rotation achieved with 1 meter focal length and their subsequent transfer to a digital format. Results. In the study group wire tunneling and apparatus fixation were shown not to result in growing plate locking, providing conditions for recovery of the shape and structure of the femoral head, which was accompanied by a slowdown in its width decrease in the affected extremity and led to the compliance of this parameter between the intact and affected extremities. No correlation was revealed between the degree of structural metaphyseal damage and the state of proximal growing zone.
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