Manual 20-33: Arthrology and Syndesmology of the Foot Flashcards
what is the functional subtalar joint composed of?
- subtalar joint and talocalcaneal portion of the talocalcaneonavicular joint (two joints b/w talus and calcaneus)
connects the first met and the medial cuneiform
first/ medial dorsal tarsometatarsal ligament 2nd-4th ligaments connect the second met to the medial, intermediate and lateral cuneiforms respectively
shape and location of anterior inferior tibiofibular ligament
- triangular - anterior border of fibular notch of tibia TO the anterior border of the shaft of the fibula and the lateral malleolus
what ligament lies within the tarsal canal?
interosseous talocalcaneal ligament - broad flat bad that courses obliquely from sulcus tali to calcaneal sulcus
jt where 4th met articulates with lateral cuneiform and cuboid; 5th met articulates with cuboid
lateral tarsometatarsal jt
posterior tibiotalar ligament attachment
- medial tubercle on the posterior surface of the talus, which assists in forming the groove for the tendon of flexor hallucis longus
weakest part of deltoid ligament
tibionavicular ligament
what are the two parts of the bifurcated ligament?
- calcaneonavicular ligament (passes anteromedially, to dorsal surface of navicular) - calcaneocuboid ligament (courses anterolaterally, to medial surface of cuboid)
ligaments of the medial, lateral and great tarsal joints
- dorsal tarsometatarsal (7) - plantar tarsometatarsal (3-5) - interosseous tarsometatarsal can be specifically named according to bones they attach to, but more general term of tarsometatarsal is more commonly used
the heads of all 5 mets are untied by …
deep transverse metatarsal ligament
two variations of the great tarsal joint
- articulation b/w 3rd and 4th met is not part of great tarsal in some feet - cuboid and navicular articulate w/i great tarsal in some feet (normal - fibrous joint not synovial b/w cuboid and navicular)
tibionavicular ligament attachment
- tuberosity of navicular - blends with spring ligament
what does the capsule look like on the plantar side of the MP joint?
- extends back procimally on the head of the met - plantar MP ligament blends with fibrous capsule
primary actions at MP joints
flexion and extension (some abduction and adduction also occurs)
is the interosseous tibiofibular ligament a part of the ankle joint?
- NO - it is the lowermost portion of the interosseous membrane b/w the tibia and the fibula
what are the four intertarsal joints?
- talocalcaneal - talocalcaneonavicular - calcaneocuboid - great tarsal
the convex head of talus articulares with …
concave proximal surface of navicular
four ligaments associated with talocalcaneonavicular jt
- interosseous talocalcaneal ligament - dorsal talonavicular ligament - calcaneonavicular part of bifurcated ligament - spring ligament
weakest lateral collateral ligament
calcaneofibular ligament
functional tarsometatarsal joint
lisfranc’s joint ( = medial and lateral tarsometatarsal and great tarsal)
For ligaments attached to tibia and a tarsal bone, ______ is named last
- tarsal bone ex: tibionavicular
what are the ligaments of an IP joint?
- articular capsule - medial collateral ligament - lateral collateral ligament - plantar interphalangeal ligament
plantar metatasophalangeal ligaments AKA
glenoid ligaments - attached loosely to met heads but firmly to proximal phalanges
deepest and strongest lateral collateral ligament
posterior talofibular lig
calcaneal attachment of long plantar ligament
medial and lateral processes and to depression between the processes, extending anteriorly
the tendons of what two muscles lie superficial to the deltoid ligament?
tibialis posterior and flexor digitorum longus
what does the talus articulate with in the talocalcaneonavicular joint?
- calcaneus via two facets - navicular - fibrocartialginous thickening in superior part of spring ligament (plantar calcaneonavicular)
For ligaments attached to fibula and tarsal bone, ______ is named first
- tarsal bone ex; calcaneofibular
attachments of fibulotalocalcaneal ligament
superior = posterior border of lateral malleolus where it blends the posterior tibiofibular ligament, closely related to fibrous sheath around the tendons of peroneus longus and brevis inferior = divides into two laminae superomedial/talar lamina - attaches to lateral tubercle of posterior process of talus inferolateral/calcaneal lamina - attaches to posterior third of dorsal surface of calcaneus * this ligament may also attach to the lateral surface of the calcaneus where it blends with calcaneofibular ligament
attachments of short plantar ligament
anterior tubercle of calcaneus proximally, cuboid distally just posterior to the peroneal ridge and to the coronoid process
all IP joints are what type of joint?
hinge joints
the plantar tarsometatrsal ligaments are weak and irregular. fibers course obliquely as well as longitudinally. These ligaments blend with:
long plantar ligament and the tendon of tibialis posterior
attachments of anterior talofibular ligament
- anterior margin of lateral malleolus and to neck of talus - blends with fibrous capsule - overhangs the tarsal sinus
deep portion of the posterior inferior tibiofibular ligament AKA
inferior transverse ligament - located inferiorly and deep - contains elastic fibers and fibrocartilage and helps form the tibial plafond
what tendons cover the calcaneofibular ligament?
- tendons of peroneus longus and brevis
what is the strongest part of the deltoid ligament?
tibiocalcaneal ligament
jt where the second metatarsal articulates with all three cuneiform bones and the third met articulates with lateral cuneiform
great tarsal jt
true or false: the great tarsal jt does not participate in either functional joint true or false: the talocalcaneonavicular jt participates in both functional intertarsal joints
true true
shape and location of posterior inferior tibiofibular ligament
- quadrilateral - from posterior border of the fibular notch of tibia to the upper part of the lateral malleolar facet - remember it has two portions
what type of joint is the ankle joint?
hinge or ginglymus type of synovial joint
the trochlea of the talus fits into a socket formed by …
- tibia - fibula - anterior inferior tibiofibular ligament - inferior transverse ligament
the tarsal sinus and tarsal canal lie ________ to talocalcaneal joint
anterior - tarsal sinus and tarsal canal separate the talocalcaneal joint from the talocalcaneonavicular joint
on the medial and lateral sides of a MP jt, the capsule is thickened as the ___________ ligaments
medial and lateral collateral ligaments
which parts of the deltoid lig help to support and strengthen the spring lig?
- tibionavicular and tibiocalcaneal portions
the anterior and posterior superior tibiofibular ligaments are associated with what joint?
proximal tibiofibular joint
the tibionavicular ligament lies ________ to the anterior tibiotalar ligament
superficial
what bones are set posteriorly in the tarsal-metatarsal junction?
intermediate cuneiform and 2nd met
which part of the bifurcated ligament is associated with talocalcaneonavicular jt?
calcaneonavicular part - the calcaneocuboid portion is part of calcaneocuboid articulation
the subtalar jt lies ______ and the talocalcaneonavicular jt lies _______ to the interosseous talocalcaneal ligament
posteriorly; anteriorly
spring ligament AKA
plantar calcaneonavicular ligament
_______ ligaments support the articulation between two metatarsals
- three - plantar intermetatarsal - dorsal intermetatarsal - interosseous intermetatarsal ligaments