<prompt> Which type of injury causes more damage to the semi-lunar cartilage in the knee -Flexion and extension at the ankleRotation on a flexed kneeRotation on an extended kneeSquatting position  <response>: Injuries of the menisci semilunar cartilages are common in men under the age of 45 years.A tear is usually caused by a twisting force with the knee setniflexed or flexed. 