Foot and Ankle Flashcards
(32 cards)
what stabilizes the tibiotalar joint
deltoid ligament, anterior talofibular and posterior talofibular and calcaneofibular ligaments
where does the deltoid lig attach to
medial malleolus, navicular tuberosity, sustentaculum tali of calcaneus and the talus
where deos the ATF attach and what type of sprain can tear it
attaches to lateral malleolus and to neck and lateral articular facet of talus
tears in inversion sprains
where does the posterior talofibular lig attch
lateral malleolus and to the lateral tubercle of post process of talus
where does the calcaneofibular lig attach
lateral malleolus to tubercle of lateral surface of calcaneus
is the ankle more stable in plantar flexion or dorsiflexion
dorsi
what are the major motions of the subtalar joint
ABduction or valgus
and Adduction or varus
what are the joints of the hind foot
talonavicular, talocalcaneal( subtalar)
calcaneocuboid
what happens in the foot during inversion
calcaneus adduction, navicular rotation and glide on talusto raise medial arch
what happens in foot during eversion
calcaneal ABduction, navicular rotation and glide on talus to raise lateral arch
Describe pronation of foot
eversion, dorsiflexion and ABduction
DEscribe supination of foot
Inversion, plantar flexion and ADduction
what is the primary motion of the inter metatarsal joints
sliding
What bones make up the lateral arch
calcaneus, cuboid 4th and 5th MTs
what bones make up the medial arch
calcaneus, talus, navicular, the cuneiforms and 1-3 MTs
What causes a high medial arch
ADduction of foot and varus calcaneus
What causes a dropped medial arch
ABduction of foot and valgus calcaneus and dorsiflexion (extreme pronation)
how many transverse arches are there
3, anterior posterior and tarsal
what causes flat feet
loss of tarsal arch
When evaluating an orthopedic injury which joints do you evaluate
1-3 joints up and down from injury
medial deviation of 1st MTP with lateral deviationa of proximal phalanx of hallux is what
bunion
describe the gait in regards to foot motion
heel strike, foot rolls laterally,weight rolls back to ant transverse arch, great toe should push toe off then swing phase
what ligaments are involved in acute inversion ankle sprain
anterior talofibular, calcaneofibular, posterior talofibular
What is the grading for a sprain
grade 1 microtears
grade 2 partial tears with decreased ROM
grade 3 complete tear with marked loss function and complete instability