Fig. 4From: Analysis of radiographic factors affecting the significant differences in knee alignment between hip-to-talus and hip-to-calcaneus radiographs after opening-wedge high tibial osteotomyA receiver operating characteristic curve was used to determine the threshold of preoperative ankle joint line obliquity that induced the inconsistencies between the weight-bearing line ratios measured on the hip-to-talus radiograph and hip-to-calcaneus radiographBack to article page