Most Common Knee Ligament Injuries- ACL and PCL

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Knee Ligament

• A ligament is a short band of tough fibrous
  connective tissue composed mainly of long,
  stringy collagen molecules.
• Ligaments connect bones to other bones in and
  around joints.
• They do not connect muscles to bones, that is the
  function of tendons. Ligaments limit the amount
  of mobility of a joint, or prevent certain
  movements altogether.

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What Does a Knee Ligament Injury Feel Like?

• Pain, often sudden and severe
• A loud pop or snap during the injury
• Swelling within the first 24 hours after the
  injury
• A feeling of looseness in the joint
• Inability to put weight on the joint without
  pain, or any weight at all

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Anterior cruciate ligament injury (ACL)

• ACL is the most commonly injured ligament of the
  knee.
• The injury is common during sports. Twisting of
  the knee is a common cause of over-stretching or
  tearing the ACL.
• When the ACL is injured one may hear a popping
  sound and the leg may suddenly give out. Besides
  swelling and pain, walking may be painful and the
  knee will feel unstable.
• Minor tears of the anterior cruciate ligament
  may heal over time, but a torn ACL requires
  surgery. After surgery, recovery is prolonged and
  low impact exercises are recommended to
  strengthen the joint.

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Posterior cruciate ligament (PCL)

• The posterior cruciate ligament (PCL) is one of
  the major ligaments of the knee.
• It connects the posterior intercondylar area of
  the tibia to the medial condyle of the femur.
• This configuration allows the PCL to resist
  forces pushing the tibia posteriorly relative to
  the femur.
• The PCL does not heal on its own, so surgery is
  usually required in complete tears of the
  ligament.
• Surgery usually takes place after a few weeks, in
  order to allow swelling to decrease and regular
  motion to return to the knee.

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Thank You

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