Inferior transverse ligament of the tibiofibular syndesmosis

The inferior transverse ligament of the tibiofibular syndesmosis is a crucial component of the ankle joint complex, specifically contributing to the stability of the tibiofibular syndesmosis. This ligament is a part of the distal tibiofibular joint, which is the articulation between the distal ends of the tibia and fibula.

Anatomy

The inferior transverse ligament is located at the distal end of the tibiofibular syndesmosis. It is a thick band of connective tissue that runs horizontally between the tibia and fibula, just above the talus bone of the foot. This ligament is considered a continuation of the posterior tibiofibular ligament, and it forms the posterior wall of the ankle mortise.

Function

The primary function of the inferior transverse ligament is to stabilize the distal tibiofibular joint. It helps maintain the proper alignment of the tibia and fibula, which is essential for the stability and function of the ankle joint. By securing the fibula against the tibia, it prevents excessive movement that could lead to ankle sprains or other injuries.

Clinical Significance

Injuries to the inferior transverse ligament can occur in conjunction with ankle fractures or severe ankle sprains. Damage to this ligament can lead to instability of the ankle joint, which may require surgical intervention to repair. Proper diagnosis and treatment are essential to restore function and prevent long-term complications.

Related Structures

The inferior transverse ligament is part of a group of ligaments that stabilize the tibiofibular syndesmosis. These include:

• Anterior tibiofibular ligament
• Posterior tibiofibular ligament
• Interosseous membrane of the leg

Also see

• Tibiofibular syndesmosis
• Ankle joint
• Ligaments of the ankle
• Ankle sprain

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