Structures Flashcards
Name bone ends articular surfaces.
Lateral malleolus
Distal surface of tibia
Medial malleolus
Trochlea surface
What is the ankles most stable position
Dorsiflexion
Mortise socket is made up of
Distal surface of tibia
Lateral and medial malleoli
Transverse ligament
Capsular attachment of the talocural joint
Articular margins of tibia, malleoli, talus.
How to injury lateral collateral ligaments of talocural joint
Landing in a plantarflexion inverted position.
Structures in forefoot
Metatarsals
Phalanges
Structures in mid foot
Navicular
Cuboid
3 x cuneiform
Structures of rear foot
Calcaneus
Talus
Subtalar joint consists of
Talus and calcaneus
Subtalar joint movements
Inversion & eversion
Medial deviation of calcaneus is…
Varus “bowing”
Lateral deviation of calcaneus…
Valgus “knock”
What joints comprise the Transverse Tarsal joint
Talocalcaneonavicular joint
Calcaneocuboid
Transverse tarsal joint structures has…
Calcaneus + talus
Navicular + cuboid + 3x cuneiforms
What type of joint is talocalcaneonavicular ..
Plane synovial joint
Talocalcaneonavicular joint ligaments…
Spring ligament.
Between sustentaculum tali and the tuberosity of navicular.
Spring ligament function
Supports head of talus
Transfer weight from talus
Maintain medial longitudinal arch of foot.
Spring ligament has a fibrous pad…
On the dorsal surface of the ligaments
What type of joint is the calcaneocuboid joint…
Plane synovial joint
Calcaneocuboid joint ligament…
Long and short plantar ligament
Long plantar ligament attachment
Calcaneus
Cuboid
4 lateral bases of metatarsals
Short plantar ligament attachement
Calcaneous to cuboid
Function of the long and short plantar ligaments
Resists depression of the lateral longitudinal arch.
Pronation of foot
Eversion, abduction, dorsiflexion.
Supination of foot
Inversion, adduction, plantarflexion
Joints between the mid foot and forefoot
Tarsometatarsal
Intermetatarsal
Metatarsophalngeal
Interphalangeal
What is the intermetatarsal joint?
Plane synovial joint.
Between the metatarsal bases
What is the tarsometatarsal joint…
Plane synovial joint.
Between the cuneiforms and the bases of metatarsals.
What is the metatarsophalangeal joint
Ellipsoid synovial joint.
Between the distal bases of the phalangeals and the head of the metatarsals.
What is interphalangeal joint
Between the phalangeal bones on one toe.
Metatarsophalangeal movements…
Flexion and extension
Abduction and adduction
Proximal and distal interphalangeal joint
Flexion and extension of the phalanges
4 factors that maintain arches of the foot.
Bones in wedged shape (keystone)
The use of muscles and ligaments. (Spring and plantar ligs)
Prevent sagging (FHL, Plantar aponeurosis)
Suspend arch
function of interosseous membrane…
Links tibia and fibula
Provides additional surface area for muscles attachment.
Attachment for interosseous membrane
From fibular notch of tibia to the medial surface of distal end of fibula.
What type of joint is the sitar inferior tibiofibular joint
Fibrous syndesmosis joint. Cartilaginous
Distal inferior tibiofibular joint ligaments
Interosseous ligament
Anterior inferior tibiofibular ligament
Posterior inferior tibiofibular ligament
Attachment of anterior inferior tibiofibular ligament.
Adjacent anterior margins of tibia and fibula.
Attachments of posterior inferior tibiofibular ligament
Posterior adjacent margins of tibia to fibula.
Movements of tibiofibular joints
Lateral rotation of fibula during dorsiflexion.
Excessive eversion of ankle injury
Talus and calcaneus applying excessive forces to lateral malleolus.
Damage to interosseous ligament and tibiofibular ligaments, and potential fracture of fibula.
