Figure Legends
FIGURE 1. Before HTO. Whole leg radiographs of a 48-year-old woman in the standing position. a . Hip-knee-ankle (HKA) angle: the angle between the femoral and tibial mechanical axes in the anteroposterior view. b . Talar tilt (TT): the angle between the tangent of the superior talar surface and the horizontal line. Tibial inclination (TI): the angle between the tibial axis and the perpendicular line.