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

Fibrous joint

•Post. Inf. tibiofibular ligament

•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

1

1

2

2

Talus

2

3

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