Is LCL valgus or varus?

The main function of the lateral collateral ligament, the LCL, is to resist varus displacement. (A word on terminology: a valgus deformity is one in which the distal part is angled away from the midline; varus is in one in which the distal part angles towards the midline.

What movement does the LCL prevent?

The LCL helps to prevent excessive side movement of the knee joint. If the LCL is torn, the knee joint may move too far sideways when stressed. This usually occurs during sports activities. The LCL tears when the knee bends inwards excessively and the LCL is stretched too far.

What is the purpose of the LCL?

The lateral or “outside” collateral ligament (LCL) connects the femur to the smaller bone in the lower leg (fibula). The collateral ligaments control the sideways motion of your knee and brace it against unusual movement.

What ligament prevents too much varus movement?

The fibular or lateral collateral ligament (LCL) is a cord-like band and acts as the primary varus stabilizer of the knee.

What is varus and valgus?

Specialty. Orthopedics. A varus deformity is an excessive inward angulation (medial angulation, that is, towards the body’s midline) of the distal segment of a bone or joint. The opposite of varus is called valgus. EX: Varus deformity results in a decreased Q angle of the knee joint.

How do you remember varus vs valgus?

Terminology. Valgus is a term for outward angulation of the distal segment of a bone or joint. The opposite condition is called varus, which is a medial deviation of the distal bone. A mnemonic to remember the two deformities is that valgus contains an “L”, for Lateral deviation.

Why are ligaments important in the knee?

Tendons connect the knee bones to the leg muscles that move the knee joint. Ligaments join the knee bones and provide stability to the knee: The anterior cruciate ligament prevents the femur from sliding backward on the tibia (or the tibia sliding forward on the femur).

What are the ligaments that support the knee joint?

The four main ligaments in the knee connect the femur (thighbone) to the tibia (shin bone), and include the following:

Anterior cruciate ligament (ACL).
Posterior cruciate ligament (PCL).
Medial collateral ligament (MCL).
Lateral collateral ligament (LCL).

How do you prevent an LCL injury?

Prevention of LCL Injury

Wear a knee brace during athletic activity like football or skiing.
Use correct techniques when doing sports and other physical activities.
Do stretches and conditioning exercises before practicing or participating in a game.

What does the LCL do in the knee?

The LCL is a band of tissue on the outside of your knee. It connects your thighbone to the bone of your lower leg and helps keep the knee from bending outward.

Which ligament resists varus forces acting at the knee?

It is most commonly injured in twisting movements. The ACL is also an accessory ligament in resisting rotary forces medially and laterally as well as valgus and varus forces. The PLB of the ACL is theorised to be most effective at providing rotary stability of the knee.

Which knee ligament is damaged from a varus force?

Lateral collateral ligament (LCL) injuries result from a varus force across the knee. A contact injury, such as a direct blow to the medial side of the knee, or a noncontact injury, such as a hyperextension stress, may result in a varus force across the knee injuring the LCL.