Structure
The fibular collateral ligament is a broad band located along the lateral aspect of the knee region. It originates from the lateral epicondyle of the femur and passes obliquely to join the tendon of biceps femoris muscle distally to form a conjoint tendon. The conjoined tendon inserts into the head of the fibula.
Unlike the tibial collateral ligament, the fibular collateral ligament is not fused to the lateral meniscus or the articular capsule of the knee. Hence, it is more flexible than the tibial collateral ligament and less susceptible to injury.
Related parts of the anatomy
Anatomical Relations
The tendon of popliteus muscle and lateral inferior genicular vessels and nerve travel deep to the fibular collateral ligament.
Function
The fibular collateral ligament maintains knee stability as it moves through its full range of motion.
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Joint Ligament
Entheseal structures are widely located throughout the body and are represented by the interface between bone and several tissues including tendon, joint capsules and ligaments.
