Manual 20-33: Arthrology and Syndesmology of the Foot Flashcards
(129 cards)
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