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Flashcards in Ankle and Foot Deck (47)
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1
Q

Talocrural joint - articulations

A

tibiofibular
tibiotalar
fibulotalar

2
Q

Talocrural joint - trochlear surface is

A

concave (med/lat)

Wider ant/post (wedge shaped)

3
Q

Talocrural joint - talus is

A

concave sup/inf

convex ant/post

4
Q

Subtalar joint - articulations

A

two separate articulations - anterior and posterior talocalcaneal

5
Q

Subtalar joint - posterior talocalcaneal articulation

A

Post sup articulation is convex in ant/post and concave in med/lat
Articulations with inferior surface of talus

6
Q

Subtalar joint - anterior talocalcaneal articulation

A

Biconvex inferior surface of neck and head of talus resting on biconcave ant surface of calcaneus

7
Q

Talonavicular joint

A

Biconvex head of talus aritculates with biconcavity formed by navicular surfaces

8
Q

Calcaneocuboid joint

A

Ant calcaneus is concave med/lat and convex sup/inf

Post cuboid is concave sup/inf and convex med/lat

9
Q

Key to lateral arch

A

Cuboid

10
Q

Cuneonavicular joint

A

Biconvex ant of navicular has three facets to articulate with concave surface of three cuneiform bones

11
Q

Metatarsalphalangeal

A

Metatarsal heads are convex

Proximal phalanges concave

12
Q

DF

A

Tib ant
Ext hall long
Ext dig long
Peroneus T

13
Q

PF

A
Gastroc
Soleus
Tib post
Flex dig long
Flex hall L
Peroneus L and B
14
Q

Eversion

A

Peroneus longus and brevis

15
Q

Inversion

A

Tib post
Tib ant
Flex dig long
Flex hall long

16
Q

Pronation (DF/EV)

A

Ext dig long

Per T

17
Q

Supination (PF/IV)

A

Flex hall long

Tib post

18
Q

Capsule - Talocrual joint -

A

Fibrous capsule lined with synovial membrane strengthened by collateral, ant, and post ligaments
Thin ant and post and thickened laterally

19
Q

Capsule - Subtalar joint -

A

Post articulation has ind. capsule with synovial membrane

Ant articulation has capsule with synovial membrane that includes talonavicular joint

20
Q

Capsule - talonavicular joint

A

Fibrous capsule with synovial lining shared with ant subtalar joint

21
Q

Capsule - Calcaneocuboid

A

Ind. fibrous capsule with synovial membranve

22
Q

Capsule - Tarsometatarsal

A

First MT with medial cuneiform
2nd and 3rd with cuneiform capsule is continueous with intercuneiform and cuneonavicular joint cavity
3rd cuneiform with base of 4th MT capsule encloses 4th MT with cuboid and third cuneiform

23
Q

Capsule - Cuneonavicualr

A

COntinuous with those of intercuneiform and cuneocuboid joints

24
Q

Metatarsalphalangeal and IP joint - capsule

A

FIbrous capsule present for each articulation

25
Q

Ligaments - Talocrural

A

Medial collateral ligament (deep and sup fibers)

Lateral collateral ligament

26
Q

Ligaments - Talocrural - Medial collateral - deep fibers

A

Anterior talotibial ligament and posterior talotibial ligament

27
Q

Ligaments - Talocrural - Medial collateral - superficial fibers

A

deltoid ligament

28
Q

Ligaments - Talocrural - lateral collateral -

A

anterior talofibular ligament
calcaneofibular ligament
posterior talofibular ligament

29
Q

Ligaments - subtalar joint -

A

Interosseous talocalcaneal ligament (taut with ever)
Lateral talocalcaneal ligament
Posterior talocalcaneal ligament
Medial talocalcaneal ligemant

30
Q

LIgaments - Talonavicular

A

Plantar calcaneonavicular ligament (spring ligament)

Dorsal talonavicular ligament

31
Q

Ligaments - Calcaneocuboid joint

A
med band of bifurcate lig (lateral calcaneonavicular ligament)
med calcaneocuboid (lateral band of bifurcated ligament)
long plantar ligament (superficial plantar calcaneocuboid)
plantar calcaneocuboid (short plantar)
32
Q

Tarsometatarsal joints - medially ___ lgament

A

dorsal ligament runs from medial cuneiform to base of second mT

33
Q

Tarsometatarsal joints - laterally ___ ligament

A

dorsal ligaments with straight fibers from middle cuneiform to second MT, lateral cuneiform to third MT,
cruciate fibers are lateral cuneiform to second mT, and middle cuneiform to 3rd MT

34
Q

Cuneonavicular joint

A

Three dorsal cuneonavicular ligaments - one att to each cuneiform

35
Q

PLantar fascia

A

Broad, dense band of longitudinally arranged collagen fibers that can be divided into 3 components

36
Q

Plantar fascia tightens with

A

DF

Tightening causes supination of calcaneus, inversion of subtalar joint

37
Q

Bursa -

A

Post calcaneal

Retrocalcaneal

38
Q

Talocrural joint biomechanics - conjunt rotations

A

Talus rotates 30 from DF to PF

39
Q

Talocrural joint biomechanics - open chain - during PF

A

Talus describes ant glide on morise with slight IR and add

40
Q

Talocrual joint biomech - closed chain - during PF

A

tibia glides post on talus with slight ER

41
Q

Subtalar joing biomech - joint axes

A

Oblique axis extends from post plantar and lat to ant dorsal and med

42
Q

Subtalar joing biomech - joint axes - numbers

A

Joint oriented obliquely with avg of 42 from horizontal and 16 from midline of foot

43
Q

Subtalr joint - conjunction rotation

A

Calcaneus can move in many directiosn due to multiple articulations

44
Q

Subtalar joint - arthrokinematics - open chain during inversion

A

calcaneus moves into add, sup, and PF on fixed talus

45
Q

Subtalar joint - arthrokinematics - closed chain during inversion

A

supination of calcaneus with abd and DF of talus

46
Q

Talonavicular - ioen chain during inversion

A

navicular PF, add, and ER on talus

47
Q

Talonavicular - closed chain during inversion

A

Navicular PF, add, and IR