Ligaments of the foot and ankle Flashcards
Talocrural fibrous capsule
from the borders of the articular surfaces of tibia & malleoli to the margins of the trochlear surface of the talus
Deltoid ligament attachments
from the medial malleolus to the talus, navicular & sustentaculum tali of the calcaneus
PARTS:
-anterior tibiotalar
-tibionavicular
-tibiocalcaneal
-posterior tibiotalar
deltoid ligament function
stabilizes joint & resists forced eversion of the talus, calcaneus, and navicular
What are the primary lateral ligaments of the ankle
ATFL
CFL
PTFL
ATFL attachments
anterior lateral malleolus of the fibula to the neck of the talus
ATFL function
resist talocrural inversion and resist anterior translation of the talus
-when in the PF position
CFL attachments
tip of the lateral malleolus to the lateral surface of the calcaneus
CFL function
resist calcaneal/subtalar inversion
PTFL attachments
malleolar fossa of the fibula to the lateral tubercle of the talus
PTFL function
restrict talocrural inversion
Long plantar ligament attachments
from the plantar surface of the calcaneus & cuboid to the plantar surface of the bases of the metatarsals
Plantar calcaneocuboid (short plantar lig attachments
from calcaneus to the plantar surface of the cuboid
Plantar calcaneonavicular (spring ligament) attachments
from the anterior margin of the sustentaculum tali to the plantar surface of the navicular
Plantar calcaneonavicular (spring ligament) function
- supports the medial longitudinal arch of the foot