36. Joints of the Foot Flashcards
What structures support the transverse arch? (4)
Tendon of tibialis posterior
Tendon of fibularis longus
Adductor hallucis
Deep transverse metatarsal ligament
What bones contribute to the lateral longitudinal arch? (4)
Calcaneus
Cuboid
Metarsals 4 + 5
What bones contribute to the medial longitudinal arch? (9)
Calcaneus Talus Navicular 3 x Cuneiforms Metatarsals 1 - 3
What muscles provide dynamic support to the longitudinal arch?
Intrinsic foot muscles
Flexor hallucis longus
Flexor digitorum longus
Which ligaments provide passive support to the longitudinal arch?
Plantar calcaneonavicular (spring)
Short plantar (calcaneocuboid)
Long plantar
Plantar aponeurosis
Name the 8 joints of the foot
Subtalar Talonavicular Calcaneocuboid Cuneonavicular Tarsometatarsal Intermetatarsal Metatarsophalangeal Interphalangeal
What 2 joints function together to form the transverse (mid) tarsal joint?
Talonavicular
Calcaneocuboid
Structural classification of the subtalar joint?
Plane synovial
What ligaments surround the subtalar joint?
Medial
Lateral
Interosseous (strong)
Posterior talcocalcaneal ligaments
Function classification of the transverse (mid) tarsal joint?
Talocalcaneonavicular joint - talocalcaneal part = plane synovial, talonavicular = ball and socket
Calcaneocuboid joint = plane synovial
Which ligaments surround the midtarsal joint?
Bifurcate ligament Dorsal calcaneocuboid Long plantar Short plantar Spring
What does the bifurcate ligament attach?
Calcaneus –>
Navicular and cuboid
What does the dorsal calcaneocuboid ligament attach?
Calcaneus –>
Cuboid
What does the long plantar ligament attach?
Calcaneus –>
Cuboid and metatarsals
What does the short plantar ligament attach?
Calcaneus –>
Cuboid
What does the spring ligament attach?
Calcaneus –>
Navicular
Which joints of the foot permit inversion and eversion?
Subtalar
Talcocalcaneal part of talocalcaneonavicular
Augmented by midtarsal joint
What bones articulate at the tarsometarsal joint?
Anterior tarsal bones (cuboid and 3x cuneiforms)
Bases of the metatarsals
Functional classification of MTP joints?
Synovial condyloid
Movements possible at MTP joints?
Flexion extension
Adduction abduction
Functional classification of IP joints?
Synovial hinge
Movements possible at IP joints?
Flexion extension
