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Knee Injury and Meniscus Tear

Like a lot of knee injuries, a meniscus tear can be painful and debilitating. Unfortunately, it's quite common. In fact, a meniscal tear is one of the most frequently occurring cartilage injuriesof the knee.

So what is the meniscus? It's a piece of cartilage in your knee that cushions and stabilizes the joint. It protects the bones from wear and tear. But all it takes is a good twist of the knee to tear the meniscus. In some cases, a piece of the shredded cartilage breaks loose and catches in the knee joint, causing it to lock up.

Meniscus tears are common in contact sports, like football, as well as noncontact sports requiring jumping and cutting such as  volleyball and soccer. They can happen when a person changes direction suddenly while running, and often occur at the same time as other knee injuries, like an anterior cruciate ligament (ACL) injury. Meniscus tears are a special risk for older athletes, since the meniscus weakens with age. More than 40% of people 65 or older have them.

What Does a Meniscus Tear Feel Like?

Symptoms of a meniscus tear include:

  • Pain in the knee.
  • Swelling.
  • A popping sensation during the injury.
  • Difficulty bending and straightening the leg,
  • A tendency for your knee to get "stuck" or lock up.

At first, the pain may not be bad. You might even play through the injury. But once the inflammation sets in, your knee will probably hurt quite a bit.

To diagnose a meniscus tear, your doctor will give you a thorough exam. He or she will want to hear details about how you got your injury. X-rays may be necessary, to rule out broken bones and other problems. You may also need an MRI (Magnetic Resonance Imaging) scan, which allows a more detailed evaluation of knee cartilage.

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