Knee Ligamentous Injuries Overview
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Questions and Answers

What is the primary function of the LCL (Lateral Collateral Ligament)?

  • Excessive valgus knee loads applied during weight-bearing decelerating activities
  • Limiting external rotation of a flexed knee
  • Sudden application of a valgus torque to the knee
  • Resisting varus forces, particularly in the initial 0° to 30° of knee flexion (correct)

    • What is the main mechanism of injury for ACL injuries?

  • Direct hit to the lateral aspect of the knee with the foot in contact with the ground
  • Sudden violent hyperextension of the knee joint
  • Deceleration and acceleration motions with excessive quadriceps contraction (correct)
  • Sudden application of a valgus torque to the knee

    • How are PCL (Posterior Cruciate Ligament) injuries commonly caused?

  • Sudden application of a valgus torque to the knee
  • Fall on the flexed knee with the foot in plantar flexion
  • Dashboard/anterior tibial blow injury (correct)
  • Excessive valgus knee loads applied during weight-bearing decelerating activities

    • What is the main mechanism of injury for MCL (Medial Collateral Ligament) injuries?

    <p>Sudden application of a valgus torque to the knee</p> Signup and view all the answers

    What is a common cause of ACL injuries?

    <p>Sudden application of a valgus torque to the knee</p> Signup and view all the answers

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