There are four main ligaments in the knee that can become injured. During injury, a knee ligament may be stretched (sprained), or sometimes torn (ruptured). Ligament rupture can be partial (just some of the fibres that make up the ligament are torn) or complete (the ligament is torn through completely). Knee ligament injuries can cause pain, swelling, tenderness, bruising and reduced movement of your knee. Your knee joint may feel unstable and you may walk with a limp. Treatment of a knee ligament injury can depend on a number of things including which ligament is injured and how sporty and active you are.
The lateral collateral ligament (LCL) is the other main ligament on the outside of the knee joint. This ligament also helps to limit the amount the knee moves from side to side.
Injuries to the LCL are less common than injuries to the MCL. This is because your other leg usually protects against injury to the inner side of your knee. (It is usually a direct blow to the inner side of your knee that causes an LCL injury.) But, this ligament injury can sometimes happen if one leg is stretched out in front of you and doesn't have the other leg for protection - for example, during a rugby or football tackle
If you feel that you may have a knee ligament injury, you should see a doctor. Your doctor will usually start by asking you questions about the injury, what happened and where you are feeling any pain. They may then examine your knee to look for signs of swelling of your knee joint. They may also move your leg into different positions to test your knee ligaments. From this examination, they may be able to get an idea of the possible injury that you have.
If your doctor is concerned that you may have a more serious knee ligament injury, they may refer you for further tests such as an ultrasound scan or an MRI scan. Such tests should be able to show up any tears or rupture of your ligaments. Sometimes, an X-ray of your knee may be suggested.
The lateral collateral ligament (LCL) is the other main ligament on the outside of the knee joint. This ligament also helps to limit the amount the knee moves from side to side.
Injuries to the LCL are less common than injuries to the MCL. This is because your other leg usually protects against injury to the inner side of your knee. (It is usually a direct blow to the inner side of your knee that causes an LCL injury.) But, this ligament injury can sometimes happen if one leg is stretched out in front of you and doesn't have the other leg for protection - for example, during a rugby or football tackle
If you feel that you may have a knee ligament injury, you should see a doctor. Your doctor will usually start by asking you questions about the injury, what happened and where you are feeling any pain. They may then examine your knee to look for signs of swelling of your knee joint. They may also move your leg into different positions to test your knee ligaments. From this examination, they may be able to get an idea of the possible injury that you have.
If your doctor is concerned that you may have a more serious knee ligament injury, they may refer you for further tests such as an ultrasound scan or an MRI scan. Such tests should be able to show up any tears or rupture of your ligaments. Sometimes, an X-ray of your knee may be suggested.
•
