Leg and Ankle Fibula distal end post Lateral

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

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

TCN joint & calcaneonavicular ligament

Inteosseeous talocalcaneal ligament separates the ST J. from TCN J.

Other ligaments • • Calcaneofibular Tibionavicular Tibiocalcaneal Talocalcaneal

Calcaneofibular

Talar tilt test to evaluate the calcaneofibular ligament.

Deltoid

Deltoid

eversion injuries : Pott's fracture

inversion injuries: ankle sprain