Mainly, knee is made to bend only in one direction-with the knee facing straight forward. When the foot rolls in too much (over-pronates), however, the leg rotates in toward the opposite leg. This causes the knee to function while pointing inward. In this position each step you take will put stress on the knee. If your knee pain is due to your foot mechanics, orthotics can be a very effective way to relieve your symptoms.
Physical therapy is essential to the treatment, rehabilitation, and prevention of many of the conditions that affect the knee joint and its surrounding supporting structures. Physical therapy for knee pain often includes ice and elevation and muscle toning exercises. And ask also about knee walker questions to have a wide range of treatment options.