Ankle/Foot Flashcards
(33 cards)
What are the functions of the ankle?
Stability (BoS, Rigid lever for push-off)
Flexibility (adapt to terrain, shock absorption)
Is pronation or supination associated with flexibility?
Pronation
Is pronation or supination associated with stability?
Supination
Pes cavus is ____
rigid, high arch
Pes planus is ____
flexibility, flat arch
Arthrokinematics of talocrural joint
Convex (talus) moving on concave (tib/fib), roll and glide OPPOSITE
In DF, talus rolls anteriorly, so glide is?
posteriorly
In PF, talus rolls posteriorly, so glide is?
anteriorly
Subtalar Joint glide during foot eversion
lateral glide
Subtalar Joint glide during foot inversion
medial glide
Pronation, Open Chain of Ankle (Sitting)
Eversion
Dorsiflexion
Abduction
(All related to calcaneus)
Pronation, Closed Chain of Ankle (Standing)
Talar adduction
Talar plantarflexion
Calcaneal eversion
Supination, Open Chain
Inversion
Plantarflexion
Adduction
Supination, Closed Chain
talar abduction
talar dorsiflexion
calcaneal inversion
What tightens during the Windlass Mechanism
Great toe extension tightens plantar aponeurosis
What is the 1st point of Normalcy?
Tibia is vertical
What is the 2nd point of Normalcy?
Calcaneus in line w/ tibia
What is the 3rd point of Normalcy?
Metatarsals in plane is perpendicular to calcaneus
What is the 4th point of Normalcy?
Metatarsals are in the same plane
rearfoot varus (NWB)
Subtalar joint neutral
Calcaneal inverted
Forefoot inverted
rearfoot varus (WB)
Subtalar joint pronated
Calcaneus vertical
Forefoot flat
forefoot varus (NWB)
Subtalar joint neutral
Calcaneus vertical
Forefoot inverted
forefoot varus (WB)
Subtalar joint neutral pronated
Calcaneus everted
Forefoot flat
forefoot valgus (NWB)
Subtalar joint neutral
Calcaneus vertical
Forefoot everted