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The lowdown on ligaments Ligaments bind bone ends together. Ligaments in the knee — especially the anterior cruciate and the medial collateral — can tear during direction changes, twisting, slowing down while running, landing from a jump or from direct blows.

Femur

Posterior cruciate ligament

Damaged anterior cruciate ligament

Lateral collateral ligament Fibula

Meniscus cartilage

Medial collateral ligament

Tibia

Tunnel

Screws

Tendon graft

Press-Gazette, USA Today Source: American Medical Association


Repairing a torn anterior cruciate ligament