Knee injuries are common, especially in athletes. In some contact sports, excessive wear and tear often cause severe knee injuries, including: the medial collateral ligament, the anterior cruciate ligament and the medial semi-lunate cartilage.
Ligaments and tendons are used to support the knee, but when they experience excessive stretching or pressing, partial tearing or complete rupture may occur, and the semi-lunate cartilages may also be damaged.
In track and field events, or in wrestling, lateral meniscus injury often occur. The common knee injuries also include: hyperextension and anterior subluxation. Knee rehabilitation often depends upon the injury severity.