Posterior talofibular ligament
Posterior Talofibular Ligament[edit | edit source]
The Posterior Talofibular Ligament (PTFL) is one of the key ligaments in the human ankle. It is part of the lateral ligament complex, which also includes the anterior talofibular ligament and the calcaneofibular ligament. The PTFL is located at the back of the ankle and connects the talus bone to the fibula.
Anatomy[edit | edit source]
The PTFL originates from the malleolar fossa, located on the inner side of the lateral malleolus of the fibula, and inserts into the lateral tubercle of the talus. It is approximately 1 cm wide and 2 cm long. The ligament is covered by the flexor hallucis longus tendon and is separated from the calcaneofibular ligament by fatty tissue.
Function[edit | edit source]
The primary function of the PTFL is to prevent excessive plantarflexion and inversion of the foot, which are movements that can lead to ankle sprains. It also provides stability to the ankle joint during movement.
Clinical Significance[edit | edit source]
Injury to the PTFL is common in ankle sprains, especially those that occur during sports activities. A tear or rupture of the PTFL can lead to chronic ankle instability and pain. Diagnosis is typically made through physical examination and imaging studies such as MRI or ultrasound. Treatment may include physical therapy, bracing, or in severe cases, surgery.
See Also[edit | edit source]
References[edit | edit source]
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Contributors: Prab R. Tumpati, MD