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Knee Ligaments

Ligaments are soft tissue structures that attach bone to bone. The primary job of a ligament is to provide stability to a joint. There are four main ligaments of the knee.

Located on the inner aspect of the knee is the medial collateral (MCL) ligament, and on the outside is the lateral collateral ligament (LCL). These ligaments provide medial and lateral stability to the knee.

Located on the inside of the knee are the anterior cruciate ligament (ACL), and posterior cruciate ligament (PCL). They provide anterior, posterior and rotatory stability to the knee.

Two other soft tissue structures within the knee are the medial and lateral meniscus. These structures are attached to the tibia, and provide added stability and cushioning to the knee joint. They are cartilaginous in nature and when injured can be referred to as a “torn cartilage”.

Common conditions

  • ACL tear

  • ACL insufficiency

  • PCL tear

  • Medial meniscus tear

  • Lateral meniscus tear

  • Meniscus tear

  • Meniscectomy

  • ACL reconstruction

  • PCL reconstruction