Relationship between severity of knee osteoarthritis and radiography findings of lower limbs: A cross-sectional study from the TOEI survey

ObjectiveThis study aimed to compare radiographic parameters among radiographic severity of the medial knee osteoarthritis and between men and women in a rural Japanese population.MethodsWe measure nine radiographic parameters of the whole lower extremity in participants with neutral or varus alignment.ResultsAge and body mass index were related to the knee osteoarthritis severity. The knee osteoarthritis depended on not only varus alignment in the whole leg, but also varus deformity of proximal tibial condyle and the tibial plateau inclination, especially in women.ConclusionWe must consider the difference of tibial condyle morphology and tibial plateau inclination before onset of the knee osteoarthritis.