Rest assured as we offer only the best and most reliable treatments to your condition. br br www.orthopaedicclinic.com.sg br br The meniscus is a small "c" shaped cartilage that acts as a cushion in the knee joint. They sit between the femur and the tibia bone, one on the outside and one on the inside of the knee. A meniscus tear occurs when the cartilage tear and are injured usually during movements that forcefully rotate the knee while weight bearing.