Varus knee

Knee varus, commonly known as "O-shaped leg", "gross ring leg", "arched leg", and "basket leg" refers to the knee joint where the tibia of the calf is rotated inward by an angle, so it is called "knee varus ". The definition of varus knee is easy to be confused by seeing the shape of the lesion: the definition of varus knee is not named after the angle of the varus, but rather the direction of the calf tibia. Knee varus, the angle of the knee joint is pointing outward, so it is often mistaken for knee varus.