foot joints Flashcards
what type of joints are the prox and distal tibiofibular joints
prox- synovial
distal-syndesmosis
what two ligs help stabilize the distal tibiofib joint
Ant and post tibiofibular j
what three ligs make up the distal syndesmosis
interosseous tibiofibular
posterior tibiofibular
inferior transverse tibiofibular
attachments of post tibiofibular lig
malleolar fossa to postlat margin of tibia
attachments of transverse tibiofibular lig
btwn post margin of medial malleolus and malleolar fossa of lat malleolus
forms malleolar mortise
what surfaces make up the talocrural hinge j
formed by tibia, fibula and talus
superior articular facet, lateral malleolar face, medial articular facet
when is the talocrural joint most unstable
when it is plantar flexed because the post part of the talus is thinner
what 4 ligs make up the medial collateral deltoid lig of the ankle
- Ant tibiotalar
- tibionavivular
- tibiocalcaneal
- post tibiotalar
what structure makes the floor of the tarsal tunnel
deltoid lig
3 lat collateral ligs
post talofibular
calcaneofibular
ant talofibular
fibulas longus and braves crosses what log
calcaneofubibular
most frequently torn lig in lat ankle
ant talofibular
what happens during an eversion sprain
medial malleolus is torn off by tibiocalcaneal lig
what makes up the subtler j
inf surface of talus (post)
Sup surface of calcaneus (post)
what stabilizes the subtlar j
interosseous talocalcaneal j
what is the tarsal sinus and where is it located
btw calcaneal sulcus and talar sulcus lat side
interosseous talcalcaneal fills it
where does more inversion + eversion take place in the foot
talo-calcaneo-navicular plane synovial j
what makes up the transverse tarsal ball and socket joint and what stabalizes it
calcaneocuboid j
talonavicular j
bifurcate lig
where does the bifurcate lig attach
dorsal calcaneous and then bifurcate to cuboid and navicular
where does the lisfranc lig go and what joint does it stabilize
base of medial cuniform to base of 2nd metatarsal
stabilizes tarsometatarsal lisfrank j
what lig is found on either side of the metatarsophalangeal and interphalangeal j
medial and lat collateral ligaments
where do the medial and lat collateral ligs attach and in what movement do they get taught
dorsal surface of the proximal bone to the dorsal tubercle of the metatarsal bone
what are the 5 ligs on the plantar surface of the foot
- long plantar
- short plantar
- spring lig (calcaneonavicular)
- plantar lig plates
- deep transverse metatarsal lig
attachments of long and short plantar lig
long- base of calcaneous to groove of cuboid and bases of metatarsals
short- ant tubercle of base of calcaneous to inf surface of cuboid
attachments of spring lig and what happens when it tears
medial bird of satinaculum tali and med margin of calcaneal bone
squires flat foot
where are the plantar plate lig found
thickening along the plantar surface of the metatarsal, phalangeal and interphalengeal j
where is the deep transverse metatarsal log found
interconnecting the plantar plate ligs