Transcript Ankle osteology

Leg and Ankle
Fibula distal end (post.)
• Lateral malleolus
• Fibular/proneal
groove (tendons)
• Malleolar fossa
(ligaments)
Tibia distal end (post.)
• Medial malleolus
• Fibular notch
(articulates with
fibula)
• Malleolar groove
(tendons)
Tibiofibular joints
Synovial joint
•Post. Inf. tibiofibular
ligament
Fibrous joint
•Ant. Inf. Tibiofibular
ligament
Articular surface: 3
Movements of the ankle
•
•
•
•
Plantar Flexion
Dorsi Flexion
Inversion
Eversion
Plantar Flexion/Dorsi Flexion
Inversion/Eversion
Tarsal bones
•Talus
•Calcaneus
•Navicular
•Cuboid
•Cuneiforms
Talus
2
1
2
1
Talus
3
2
3
The ankle, or talocrural joint
• Needs ligaments!
Lateral ligament s of talocrural joint
Anterior drawer test to evaluate the anterior talofibular
ligament.
Medial ligament s of talocrural joint
The ankle, or talocrural joint, is a
hinge joint
• Plantar Flexion
• Dorsi Flexion
Inversion/Eversion?
Intertarsal joint:
• Subtalar joint (ST J.)
• Talocalcaneonavicular joint (TCN J.)
• Calcaneocuboid (small rotation)
•
Naviculoconeiforms (almost no movement)
Calcaneous bone
Calcaneous bone
Subtalar joint
Lateral
Medial
sustentaculum tali (talar shelf) fracture
Subtalar joint
TCN joint
Talocalcaneonavicular joint
Calcaneonavicular L.
Other ligaments
• Calcaneofibular
• Deltoid
• Talocalcaneal
Calcaneofibular
Talar tilt test to evaluate the calcaneofibular ligament.
Deltoid
Deltoid
eversion injuries :
Pott's fracture
inversion injuries:
ankle sprain
Inteosseeous talocalcaneal ligament separates the ST J.
from TCN J.
Retinaculum