Abstract
In rats with modeled posttraumatic knee osteoarthrosis, negative changes in subchondral bone metabolism were revealed: a tendency to an increase in osteocalcin concentration, a decrease in sclerostin and osteoprotegerin levels, and a significant increase in FGF-23 concentration accompanied by a slight elevation of inorganic phosphorous and significant increase in total calcium levels in comparison with the corresponding parameters in intact controls. These findings demonstrate crucial importance of structural integrity of the subchondral bone, because its protection improves the results of reconstructive therapy for local cartilage defects.
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