What are combined knee ligament injuries?

As the biggest and complex joint in the body, the knee is vital for various movements. The knee ligaments are responsible for connecting the thighbone to the lower legs and sprains or tears are common during sports. In the past, injuring more than a single ligament will disrupt sports activities. At the present, many individuals can resume activity even after incurring multiple ligament injuries. To learn to recognize and manage the symptoms and muscle or joint injuries, enroll in a first aid class.

What is the knee joint?

It is important to note that there are three bones that form the knee joint.  The kneecap is positioned in front part of the joint for added protection. These bones are connected to other bones with the help of the ligaments. There are four main ligaments in the knee that function as sturdy ropes to hold the bones together and maintain knee stability.

  • Cruciate ligaments are found inside the knee joint and traverse one another to create an “X” including the anterior cruciate ligament in front part as well as the posterior cruciate ligament in the rear part.
  • Collateral ligaments are situated on the sides of the knee and control the sideways movement of the knee and brace it against unusual motions.
Knee ligaments

The knee ligaments are responsible for connecting the thighbone to the lower legs and sprains or tears are common during sports

What are combined knee ligament injuries?

It is important to note that the knee joint depends on these ligaments as well as surrounding muscles for stability but they can be injured easily. In case of direct contact to the knee or hard muscle contraction, it can lead to a damaged knee ligament. The injured ligaments are graded based on their severity.

  • Grade 1 involves mild damage to the ligament in which it was slightly stretched but still capable of keeping the joint stable.
  • Grade 2 involves stretching up to the point of looseness and also called as a partial tear.
  • Grade 3 is the full tear of the ligament where it has been split into two pieces while the knee joint is unstable.

Take note that there is a possibility that two or more ligaments are injured at the same time. These multiple injuries can lead to serious complications such as the disrupted blood supply to the leg. In some cases, the nerves that supply the muscles of the limb can be affected. In severe circumstances, several ligament injuries can result to amputation.


An individual who is suspected with multiple ligament injuries requires thorough examination by a doctor. Depending on the injury, a specialist might be consulted. The surgery for combined knee ligament injuries is often performed right after the injury. This is usually done even though early surgery poses a risk for arthrofibrosis. Remember that more than one operation is needed when managing multiple ligament injuries.


The results of multiple ligament surgery are not as consistent with injuries involving a single ligament. In the previous years, combined knee ligament injuries prevented many individuals from returning to sports. Today, it is possible to resume sports after the healing process.