15. Joints of the foot - subtalar joint and talo-calcaneo-navicular joint. Joints of the foot with liM-ited movement. Interphalangeal joints.

Introduction

30 + 31

Intertarsal joints:

• Are the connections between the tarsal bones in the human foot.
• The intertarsal joints:

1. Subtalar joint (talocalcaneal )
2. Talocalcaneonavicular joint
3. Calcaneocuboid joint — together called Transverse tarsal joint
4. Cuneonavicular joint.
5. Cubideonavicular joint.
6. Intercuneiform joints.

Subtalar joint:

• Type: Plane synovial joint, allowing eversion & inversion.
• Articular Surfaces:
• Between concave inferior surface of talus and convex superior surface of calcaneus.
• Capsule
• Ligaments:
• Medial talocalcaneal ligament
• Lateral talocalcaneal ligament
• Posterior talocalcaneal ligament
• Interosseous talocalcaneal ligament
• Cervical ligaments

Transverse tarsal joint:

Is a compound joint formed by 2 separates joints

1. Talonavicular part of the talocalcaneonavicular joint.
2. Calcaneocuboid joint

• Type: saddle joint.
• Ligaments:
• Talonavicular joint:

1. Planter calcaneonavicular
2. Calcaneonavicular
3. talonavicular
4. medial collateral

• Calcaneocuboid joint:

1. planter calcaneocuboid.
2. long planter
3. Calcaneocuboid
4. Dorsal calcaneocuboid

• Blood supply
• Lateral tarsal artery nourishes the joint.

member, this intricate joint allows your foot

• Innervation:
• Talonavicular joint:
• Deep fibular nerve
• Medial plantar nerve
• Calcaneocuboid joint:
• Deep fibular nerve
• Sural nerve
• Lateral plantar nerve
• Movements:

Supination. - Pronation.

30 + 31 cont.