Abstract: A knee brace (10) according to the invention includes an upper leg formation (12), a lower leg formation (14) and a hinge mechanism (16) that is disposed entirely on the lateral side of the knee. The knee brace (10) has pressure formations (20, 24,62, 28) pressing on three pressure points: on the lateral aspect of the wearer's upper leg, on the lateral aspect of the wearer's lower leg, and against the knee complex on the medial aspect of the distal extremity of the femur. The three pressure formations are connected to one another by a stiff structure (18, 16) which includes the hinge mechanism (16).