A meniscus tear is one of the most common knee injuries. Anyone can suffer a meniscus tear, but athletes and especially those who participate in team sports (such as basketball, soccer, and volleyball) are more susceptible.

The menisci (inner and outer) are two hard, elastic anatomical formations composed mainly of water and collagen fibers.

They have a horseshoe shape and are inserted between the articular surfaces of the tibia and femur. They mainly serve to absorb loads and improve the contact of the femur with the tibia while helping to stabilize and lubricate the knee, making its movement smoother.

The mechanism of meniscal tears is usually the loading of the bent knee with simultaneous flexion.

The most common symptoms are:

• Pain on the inside or outside of the knee (corresponding to the torn meniscus)

• Swelling and stiffness

• Bruising or impingement of the knee when there is a dislocated piece

• Feeling unsteady