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Collateral Ligament of the Knee

USC Orthopaedic Surgery / Conditions / Collateral Ligament of the Knee

The collateral ligaments are located on the sides of the knee. They control the sideways motion of the knee joints and hold them in place. Injury is usually caused by impact. Athletes and weekend warriors are more likely to experience this type of injury.

What are the signs and symptoms of a collateral ligament of the knee?

  • Swelling and pain
  • Instability: the feeling of your knee giving way or locking up

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