Fig. 1From: Quantitative evaluation method for clarifying ankle plantar flexion angles using anterior drawer and inversion stress tests: a cross-sectional studyUltrasound images of the fibular lateral malleolus and talus The probe is applied to the long axis of the fibular lateral malleolus and the anterior lateral portion of the talus as markers. We checked the anterior and posterior talus bone projections, which are drawn at sharp angles on the image. Subsequently, we checked the rounded fibular lateral malleolus and photographed them in B modeBack to article page