What Happens When There Is An ACL Injury?

Why are ACL Tears Such a Big Problem?

When an ACL injury occurs, the knee becomes less stable. The ACL injury is a problem because this instability can make sudden, pivoting movements difficult, and it may make the knee more prone to developing arthritis and cartilage tears.

If your knee is unstable, a common complaint of a sensation that the knee will ‘give out’ from under them. When this giving way sensation is because of an ACL injury, the knee joint is sliding too much. Joint sliding can be a problem because each episode of instability (the ‘giving way’ sensation) can cause damage to the knee cartilage. Therefore an ACL injury makes patients more prone to developing arthritis and meniscus tears.

Athletes often have particular difficulty once they have sustained an ACL injury. Many sports require a functioning ACL to perform common manoeuvres such as cutting, pivoting, and sudden turns. These high demand sports include, but are not limited to:

  • Football
  • Soccer
  • Basketball
  • Skiing
  • Gymnastics
  • Hockey (Ice and Field)
  • Wrestling
  • Lacrosse
  • Rugby

Patients may be able to function in their normal daily activities without a normal ACL, but these high-demand sports may prove difficult. Therefore, athletes are often faced with the decision to undergo surgery in order to return to their previous level of competition.

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