The use of a knee brace after a meniscus tear is not useful. Once the meniscus is torn, the damage is very severe and the use of a knee brace is not protective. Knee pads are used to maintain the stability of the knee joint when walking or playing sports, to avoid damage to the ligaments around the knee joint, and to cushion the impact. However, if the meniscus is already torn, the use of a knee brace is not useful. Because there is no way to cushion gravity when walking or playing sports, the weight of the body still acts on the torn meniscus, so the pain is very obvious and the knee brace is not protective.