METHOD OF DETERMINING DEGREE OF SPONGY BONE ALTERATION IN CASE OF DEFORMING ARTHROSIS OF KNEE JOINT Russian patent published in 2013 - IPC A61B8/13 A61B6/03 

FIELD: medicine.

SUBSTANCE: invention relates to field of medicine. In method realisation bone density in the area of tibia and femur condyles is determined by method of computed tomography. Range of scanning is determined by topogram. Axial cuts and multiplanar reconstructions are obtained. Measurements of density are carried out by Haunsfield scale in 8 points, marked on multiplanar reconstructions of knee joint in frontal plane. In case if density in points 5, 6 constitutes 351-450 HU, in points 3, 4 351-400 HU, in point 8 up to 220 HU, in point 7 up to 140 HU, in point 1 221-250 HU, in point 2 171-190 HU, data correspond to the first stage of disease under condition of their coincidence in six points of eight. In case if in the said points density constitutes: 251-350 HU, 301-350 HU, 221-240 HU, 141-170 HU, 191-220 HU, 141-170 HU, data correspond to the second stage of disease under condition of their coincidence in six points of eight. In case if in the same points density is: to 250 HU, to 300 HU, 241-260 HU, 171-200 HU, to 190 HU and to 140 HU, data correspond to the third stage of disease, under condition of their coincidence in six points of eight.

EFFECT: method makes it possible to reduce labour consumption in estimation and facilitate comparative interpretation of treatment results.

5 dwg, 2 ex