During your first visit, your doctor will review your symptoms and medical history.
During the physical examination, he or she will test all the structures of your injured knee and compare them to your non-injured knee.
The Lachman test shown here can help your doctor diagnose an ACL injury. During the test, your doctor will keep your thighbone steady and pull your shinbone forward. Increased motion of the shinbone indicates an ACL tear.
Most ligament injuries can be diagnosed with a thorough physical examination of the knee.