Complex sentence: The lateral talocalcaneal ligament (external calcaneo-astragaloid ligament) is a short, strong, passing from the lateral surface of the talus, immediately beneath its fibular facet to the lateral surface of the calcaneus.
Split into simpler sentences: The lateral talocalcaneal ligament (external calcaneo-astragaloid ligament) is a ligament in the ankle. It is a short, strong, passing from the lateral surface of the talus, immediately beneath its fibular facet to the lateral surface of the calcaneus.