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Arthrology of the Foot > Ligaments & Joints > Flashcards

Ligaments & Joints Flashcards

1
Q

What is the talocrural joint aka?

A

ankle joint

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2
Q

what type of joint is the talocrural joint?

A

hinge (or ginglymus type of synovial joint)

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3
Q

the trochlea of the talus fits into a socket formed by what structures?

A
  1. tibia
  2. fibula
  3. anterior inferior tibiofibular ligament
  4. inferior transverse ligament
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4
Q

which joint is especially important for maintaining stability of the ankle joint?

A

distal (inferior) tibiofibular joint

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5
Q

which ligaments are associated with the distal tibiofibular joint?

A
  1. interosseous tibiofibular ligament
  2. anterior inferior tibiofibular ligament
  3. posterior inferior tibiofibular ligament
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6
Q

which ligament is NOT part of the ankle joint?

A

the interosseous tibiofibular ligament

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7
Q

Where can the interosseous tibiofibular ligament be found?

A

(is the lowermost portion of the interosseous mb btwn the tibia and fibula)

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8
Q

where is the anterior inferior tibiofibular ligament found? what shape is this ligament?

A

(triangular in shape) extends from the anterior border of the fibular notch of the tibia to the anterior border of the shaft of the fibula and the lateral malleolus

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9
Q

where is the posterior inferior tibiofibular ligament found? what shape is this ligament?

A

(quadrilateral in shape) extends from the posterior border of the fibular notch of the tibia to the upper part of the lateral malleolar facet
*this ligament has 2 portions, superficial and deep

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10
Q

what is the deep portion of the posterior inferieor tibiofibular ligament called?

A

inferior transverse ligament

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11
Q

what is the inferior transverse ligament?

A

(deep portion of the posterior inferieor tibiofibular ligament) that helps form the tibial plafond

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12
Q

Name which surfaces of the talus articulate at the ankle joint, and what they articulate with.

A

dorsal surface –> tibial plafond
medial surface –> lateral surface of medial malleolus (tibia) *recall that this is the comma-shaped facet
lateral surface –>medial surface of lateral malleolus (fibula) *recall that these have triangular facets

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13
Q

Describe the articular capsule of the ankle joint.

A

it is thin anteriorly and posteriorly;

but is thickened medially and laterally as the collateral ligaments

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14
Q

what is the medial ligament of the ankle?

A

deltoid ligament

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15
Q

deltoid ligament has 4 distinct bands, name them.

A
  1. anterior tibiotalar
  2. posterior tibiotalar
  3. tibionavicular
  4. tibiocalcaneal
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16
Q

of the 4 bands in the deltoid ligament, which lies deep?

A

anterior tibiotalar ligament lies deep. The other 3 ligaments are located superficially.

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17
Q

superiorly, what does the deltoid ligament attach to?

A

medial malleolus (specifically, it is attached to the anterior surface, apex, and posterior surface of the medial malleolus)

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18
Q

what does the anterior tibiotalar ligament attach to?

A

(part of deltoid lig) attaches to medial surface of the talus

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19
Q

where is the posterior tibiotalar ligament attached to?

A

(part of deltoid lig)

medial tubercle of the posterior surface of teh talus

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20
Q

where is the tibiocalcaneal ligament attached to?

A

(part of deltoid lig)

attaches to sustentaculum tali of calcaneus inferiorly

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21
Q

what is the strongest part of the deltoid ligament?

A

tibiocalcaneal ligament

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22
Q

where does the tibionavicular ligament attach to?

A

(part of deltoid lig)
navicular tuberosity
*blends in with spring ligament

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23
Q

what is the weakest part of the deltoid ligament?

A

tibionavicular ligament

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24
Q

the tibionavicular ligament lies superficial to what structure?

A

anterior tibionavicular ligament

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25
Q

the tendons of which 2 muscles lie superficial to the deltoid ligament?

A

tibialis posterior

flexor digitorum longus

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26
Q

what 3 ligaments make up the lateral collateral ligament of the ankle?

A
  1. calcaneofibular
  2. anterior talofibular
  3. posterior talofibular
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27
Q

what is the weakest part of the lateral collateral ligament of the ankle?

A

calcaneofibular ligament

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28
Q

where is the attachments for the calcaneofibular ligament?

A

apex of lateral malleolus –> to an unnamed tubercle on the lateral surface of calcaneus

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29
Q

the calcaneofibular ligament is covered by which tendons?

A

peroneus longus and peroneus brevis

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30
Q

what is the shortest of the lateral ligaments?

A

anterior talofibular ligament

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31
Q

what is the attachment for the anterior talofibular ligament?

A

(part of LCL of ankle)

anterior margin of lateral malleolus –> neck of talus

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32
Q

which ligament is most commonly injured in an inversion-type sprained ankle?

A

anterior talofibular ligament (of LCL)

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33
Q

which ligament overhangs the tarsal sinus?

A

anterior talofibular ligament (of LCL)

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34
Q

which is the deepest and strongest lateral collateral ligament of the ankle?

A

posterior talofibular ligament (of LCL)

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35
Q

describe the attachments for the posterior talofibular ligament.

A

(part of LCL of ankle) fibers course horizontally between lateral malleolar fossa and the lateral tubercle of the posterior surface of teh talus

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36
Q

which ligament is NOT classified as part of the LCL of teh ankle eventhough it is located at the posterolateral aspect of teh ankle joint?

A

fibulotalocalcaneal ligament

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37
Q

describe the superior border of the fibulotalocalcaneal ligament.

A

is attached along the posterior border of the lateral malleolus where it blends with the posterior tibiofibular ligament

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38
Q

inferiorly, the fibulotalocalcaneal ligament divides into two laminae: superomedial and inferolateral. describe the superomedial band of the fibulotalocalcaneal ligament.

A

attaches to lateral tubercle of the posterior process of teh talus

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39
Q

describe the inferolateral band of the fibulotalocalcaneal ligament.

A

attaches to posterior 1/3 of dorsal surface of calcaneus

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40
Q

Name the 4 intertarsal joints.

A
  1. talocalcaneal
  2. talocalcaneonavicular
  3. calcaneocuboid
  4. great tarsal
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41
Q

what is the talocalcaneal joint?

A

aka subtalar joint (btwn talus & calcaneus)

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42
Q

what is the talocalcaneal joint formed by?

A
  • concave posterior facet on the plantar surface of the talus
  • convex posterior facet on the dorsal surface of the calcaneus
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43
Q

what separates the talocalcaneal joint from the talocalcaneonavicular joint?

A

tarsal sinus and tarsal canal

44
Q

Name the ligaments that make up the articular capsule of the talocalcaneal joint.

A
  1. medial talocalcaneal
  2. posterior talocalcaneal
  3. lateral talocalcaneal
  4. interosseous talocalcaneal
  5. anterior talocalcaneal
45
Q

Where does the medial talocalcaneal attach?

A

(talocalcaneal joint)
attached to medial tubercle of talus and to the posterior aspect of teh sustentaculum tali and the medial surface of teh calcaneus posterior to the sustentaculum tali

46
Q

the medial talocalcaneal ligament blends with what ligament superficially and with what ligament that lies deep?

A

deltoid ligament- lies superficial

interosseous talocalcaneal ligament- lies deep

47
Q

where does the posterior talocalcaneal ligament attach?

A

(talocalcaneal joint) extends between the lateral tubercle of the posterior surface of the talus & the dorsal surface of calcaneus
*may also form a Y-shaped band if there is another attachment to medial tubercle on posterior surface of talus

48
Q

where does the lateral talocalcaneal ligament attach?

A

(talocalcaneal joint) extends btwn the lateral surface of the talus beneath its fibular facet to teh lateral surface of teh calcaneus

49
Q

recall which ligament lies in the tarsal canal.

A

interosseous talocalcaneal ligament

50
Q

where does the interosseous talocalcaneal ligament attach?

A

(talocalcaneal joint) runs obliquely from sulcus tali to sulcus calcanei

51
Q

where does the anterior talocalcaneal ligament (aka cervical ligament) attach?

A

(talocalcaneal joint) attaches to neck of talus

*is the most anterior part of the interosseous talocalcaneal ligament

52
Q

which ligament is aka cervical ligament?

A

anterior talocalcaneal ligament (part of talocalcaneal joint)

53
Q

true or false: calcaneus articulates with the navicular.

A

FALSE- it does not articulate with the navicular

54
Q

Where does the talocalcaneal portion of the talocalcaneonavicular joint lie? what articulates with what?

A

(anterior to tarsal canal)
in this portion of the joint, the anterior and middle calcaneal facets of the talus articulate with the anterior and middle talar facets of the calcaneus

55
Q

what articulates with what in the talonavicular portion of the joint?

A

convex head of the talus articulates with the concave proximal surface of the navicular

56
Q

since the articular capsule of the talocalcaneonavicular joint is weak, what other ligaments does this joint have for reinforcement?

A
  1. interosseus talocalcaneal ligament
  2. dorsal talonavicular ligament
  3. calcaneonavicular part of bifurcated ligament
  4. spring ligament
57
Q

recall what is the spring ligament

A

plantar calcaneonavicular ligament

58
Q

where does the dorsal talonavicular run?

A

located betwen the neck of the talus and the dorsal surface fo the navicular

59
Q

what are the 2 parts of the bifurcated ligament?

A
  1. calcaneonavicular

2. calcaneocuboid

60
Q

where does the spring ligament attach?

A

(plantar calcaneonavicular)- posteriorly is attached to anterior border of sustentaculum tali
anteriorly, the ligament is attached to the plantar surface of the navicular and to navicular tuberosity

61
Q

what is the function of spring ligament?

A

support head of the talus, thereby maintaining the medial longitudinal arch

62
Q

what type of joint is the calcaneocuboid joint?

A

saddle type of synovial joint

63
Q

what ligaments make up the calcaneocuboid joint?

A
  1. calcaneocuboid part of the bifurcated ligament
  2. long plantar ligament
  3. plantar calcaneocuboid ligament
64
Q

what is the attachment of the long plantar ligament?

A

superiorly: medial & lateral processes and the depression between these processes fo the calcaneus
anteriorly: ligament splits into deep and superficial fibers. Deep fibers attach to peroneal ridge of cuboid. Superficial fibers attach to bases of mets 2-4

65
Q

what is the short plantar ligament aka?

A

plantar calcaneocuboid

66
Q

what is the attachments of the short plantar ligament?

A 
anterior tubercle of the calcaneus proximally
cuboid distally (posterior to peroneal ridge & to coronoid process)
67
Q

recall what structures attach to the tarsal sinus.

A 
*mnemonic- ICE BILD 
Inferior extensor retinaculum
Cervical ligament
Extensor digitorum brevis
Bifurcate ligament
Inferior peroneal retinaculum
Lateral calcaneocuboid ligament
Dorsal calcaneocuboid ligament
68
Q

recall which ligaments attach to the posterior 1/3 of the dorsal surface of the calcaneus.

A

posterior talocalcaneal

fibulocalcaneal

69
Q

recall which structure attaches to the anterior tubercle of the calcaneus.

A

short plantar lgiament (calcaneocuboid)

70
Q

recall what structure attaches to the un-named third tubercle on the lateral surface of the calcaneus.

A

calcaneofibuar ligament

71
Q

recall which structures are attached to the sustentaculum tali.

A
  • tibiocalcaneal ligament (a part of deltoid)
  • medial talocalcaneal ligament
  • recurrent band of tibialis posterior
  • spring ligament
72
Q

what ligaments attach to the medial tubercle of the posterior process of the talus?

A

medial talocalcaneal ligament

and the posterior tibiotalar ligament ( part of deltoid ligament )

73
Q

what ligaments attach to the lateral tubercle of teh posterior process?

A
  1. posterior talofibular
  2. posterior talocalcaneal
  3. fibulotalocalcaneal
74
Q

what structures attach to the superior (dorsal) surface fo the cuboid?

A
  1. dorsal calcaneocuboid
  2. dorsal cuneocuboid
  3. dorsal cuboideonavicular
  4. two dorsal cuboideometatarsals (one to the 4th met, the other to the 5th met)
  5. lateral calcaneocuboid (variable)
75
Q

Which ligament helps to check over-inversion?

A 
cervical ligament (anterior talocalcaneal lig)
*is part of the subtalar joint articular capsule
76
Q

which ligament is a ligament of the subtalar joint and the talocalcaneonavicular joint?

A

interosseous talocalcaneal ligament

77
Q

Which boens are invovled in the great tarsal joint?

A

5 of the 7 tarsal bones (all except for the talus and calcaneus) and the 3 metatarsals (2,3,4)

78
Q

what articulation is not part of the great tarsal joint in some feet?

A

articulation btwn 3rd and 4th metatarsal

79
Q

the great tarsal joint consists of 3 classes of joints- what are they?

A
  1. intertarsal
  2. tarsometatarsal
  3. intermetatarsal
80
Q

for bones that articulate at proximal-distal surfaces, how many ligaments are there? which is strongest?

A

2 ligaments: dorsal and plantar

  • plantar ligament is stronger
  • dorsal ligament is weaker
81
Q

for bones that articulate at medial-lateral surfaces, how many ligaments are there? which is strongest?

A

3 ligaments: dorsal, plantar, and interosseous

*interosseous is the strongest and dorsal is teh weakest

82
Q

how many anatomical and how many functional intertarsal joints are there?

A

4 anatomical joints but only 2functional intertarsal joints

*the great tarsal joint does not participate in either functional joint

83
Q

what does the functional subtalar joint consist of?

A

anatomical subtalar joint (btwn posterior articular facets of talus and calcaneus)
and the talocalcaneal portion of talocalcaneonavicular joint (which adds anterior & middle facet)

84
Q

what does the transverse tarsal joint (aka midtarsal joint) consist of?

A
  1. calcaneocuboid joint

2. talonavicular portion of TCN joint

85
Q

Name the functional intertarsal joints.

A

functional subtalar

transverse tarsal joint

86
Q

Name the 4 intertarsal joints.

A

subtalar
talocalcaneonavicular
calcaneocuboid
great tarsal

87
Q

which joint participates in both functional joints?

A

talocalcaneonavicular joint

88
Q

which joint does NOT participate in either functional joint?

A

great tarsal joint

89
Q

which bones are anterior to teh transverse tarsal joint? posterior?

A

anterior- navicular & cuboid

posterior- talus and calcaneus

90
Q

what are teh 3 joint cavities for the tarsometatarsal articulations?

A
  1. medial tarsometatarsal joint
  2. great tarsal joint
  3. lateral tarsometatarsal joint
91
Q

what does the medial tarsometatarsal joint consist of?

A

1st metatarsal - medial cuneiform

92
Q

what does the great tarsal joint conssit of?

A

2nd metatarsal- intermediate cuneiform

3rd metatatarsal- lateral cuneiform

93
Q

what does teh lateral tarsometatarsal joint consist of?

A

4th metatarsal - lateral cuneiform and cuboid

5th metatarsal- cuboid

94
Q

Name the ligaments of the joint cavities for the tarsometatarsal articulations.

A
  1. dorsal tarsometatarsal
  2. plantar tarsometatarsal
  3. interosseous tarsometatarsal
95
Q

how many dorsal tarsometatarsal ligaments are there?

A

7

*these are STRONG, flat bands

96
Q

how many plantar tarsometatarsal lgiaments are there?

A

(3-5)

they are weak and irregular

97
Q

How many interosseous tarsometatarsal ligaments are there?

A

3

*two attach to 2nd met and two attach to lateral cuneiform

98
Q

what is lisfranc’s ligament?

A

(interosseous tarsometatarsal ligament)

from 2nd metatarsal to lateral surface of medial cuneiform

99
Q

what 3 lgiaments support the articulation between 2 metatarsals?

A
  1. plantar intermetatarsal
  2. dorsal intermetatarsal
  3. interosseous intermetatarsal
100
Q

what union is unique to the human foot?

A

union betwen the heads of the 1st and 2nd metatarslas

*note that the bases of the 1st and 2nd mets don’t attach

101
Q

what is the relationship betwen the deep transverse metatarsal ligament to the interossei and lumbricals?

A

lumbricals- pass plantarly

interossei- pass dorsally to the ligament

102
Q

each of the five MP joints contain which ligaments?

A
  1. articular capsule
  2. medial collateral ligament
  3. lateral collateral ligament
  4. glenoid ligament
103
Q

what is the glenoid ligament?

A

aka the plantar metatarsophalangeal ligaments that attach to plantar plates

104
Q

what % of feet is the 5th toe only have 2 IP joints?

A

60%

*in 40% of feet, the middle and distal phalanges are fused –> therefore only one IP joint

105
Q

what are the ligaments of the IP joint?

A

articular capsule
MCL
LCL
plantar interphalangeal ligament

Arthrology of the Foot (1 decks)

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