METHOD OF TREATING PROXIMAL FEMUR DEFORMITIES Russian patent published in 2014 - IPC A61B17/56 A61B6/00 

FIELD: medicine.

SUBSTANCE: pelvic X-ray pattern is formed in an anteroposterior projection. An anatomical axis of femur, a centre of a femoral head, a vertical inclination angle of a cotyloid avity (Sharp angle) are localised. The femur is disintegrated by transtrochantic C-osteotomy. A transosseous device is used to move and fixe to correct the collum-epiphyseal and collum-diaphyseal deformities, to recover a femoral neck length. Depending on a degree of misalignment of the femoral head in relation to the cavity determined by the relation of the Sharp angle and an angle formed by a horizontal and a transverse angle of the femoral head, the X-ray pattern is used to calculate a centre and a rotation angle of the proximal bone fragment. Taking into account the rotation angle of the proximal bone fragment, a radius of the femoral head, a relation of an apex of the greater trochanter and the centre of the femoral head, an optimum location of the greater trochanter in relation to the femoral head providing the femoral neck shortening is determined. A direction and a value of the distal bone fragment displacement are determined.

EFFECT: method provides correction the femoral neck deformity and shortening by determining the optimum direction and value of bone fragment displacement.

1 ex, 9 dwg