The lateral meniscus of the tibia, or knee, is a thick, crescent-shaped piece of cartilage that acts as padding. It lies between the joint where the femur and tibia articulate (come in contact with each other) on the outside of the knee. Likewise, the medial meniscus lies in the joint on the inside of the knee. The menisci are vital to absorbing shock from the knees, as well as providing lubricationmycontentbreak and stabilization. Therefore, every attempt is made to repair (and more recently even to replace) worn or injured menisci.