Typical knee injuries caused by running include runner’s knee, ligament tears, fractures of the kneecap, dislocation and sprain. About 40 percent of injuries related to running have something to do with the knee.
Dislocation of the knee occurs when the bones become misaligned due to a fall or extreme stress. This can be very painful. Runner’s knee causes pain in the knee due to a tear in the cartilage underlying the kneecap. Sometimes, the patella or the kneecap can be fractured or develop minor stress fractures due to running.
Running is a high impact aerobic activity. The knees and ankles experience immense stress while running, which can cause the knee to twist, sometimes leading to tearing of the ligaments and immense pain.