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Lower Extremity Anatomy > LEA Joints of the Foot and Ankle Part 1 > Flashcards

LEA Joints of the Foot and Ankle Part 1 Flashcards

(105 cards)

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1
Q

Distal (inferior) tibiofibular joint

A
  • Fibular notch and medial triangular area of fibula

- Syndesmosis, amphiarthrosis

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2
Q

Ligaments prevent

A

separation of tibia and fibula, and talar wedging

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3
Q

Distal anterior tibiofibular ligament (trapezoid shape)

A

Anterior border of fibular notch to anterior edge of triangular area (fibula)

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4
Q

Interosseous tibiofibular ligament is a continuation of

A

the Interosseus membrane

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5
Q

Interosseous tibiofibular ligament is a strong ligament found

A

centrally, within the articulation

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6
Q

Distal posterior tibiofibular ligament (triangular shape)

A

Posterior border of fibular notch to posterior edge of triangular area(fibula)

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7
Q

Inferior transverse tibiofibular ligament is the most inferior aspect of

A

distal posterior tibfib, located posterior to ankle joint

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8
Q

inferior transverse tibiofibular ligament attaches

A
  1. to posterior-inferior aspect of fibular notch (sometimes reaches medial malleolus)
  2. lateral malleolar fossa (superior edge) on the fibula
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9
Q

Articular cartilage on deep surface of inferior transverse tibiofibular ligament that articulates with

A
  • posterior lateral aspect of trochlea

- Deepens articular surface

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10
Q

distal tibiofibular joint blood supply:

A

perforating fibular,

anterior and posterior lateral malleolar arteries

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11
Q

posterior intermalleolar ligament is located

A
  • posterior to ankle joint

- between transverse tibiofibular and posterior talofibular ligaments

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12
Q

posterior intermalleolar ligament attaches

A
  • superior edge fibular malleolar fossa and:
  • Posterior tibia and medial malleolus (via septa of flexor retinaculum
  • Lateral and medial talar processes
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13
Q

the posterior intermalleolar ligament is tensed during

A

dorsiflexion

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14
Q

the posterior intermalleolar ligament can be cause of

A

posterior impingement

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15
Q

articulation between talus and the tibia and fibula

A

the talocrural/tibiotalar/ ankle joint

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16
Q

the talocrural joint is a __ joint

A

synovial hinge joint
diarthrosis
primarily dorsi and plantar flexion

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17
Q

the ankle joint is more mobile/less stable in

A

plantar flexion

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18
Q

trochlea is more narrow __

A

posteriorly

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19
Q

arterial supply of the ankle joint

A

the medial and lateral malleolar plexuses

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20
Q

ankle mortise

A

concavity formed by the tibia, fibula, and inferior transverse tibio-fibular ligament

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21
Q

talus articulates with

A

mortise

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22
Q

the ankle joint capsule attaches to

A

Borders of tibia and malleoli
articular margins of trochlea,
talar neck on the dorsum

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23
Q

the joint capsule is weak

A

anteriorly and posteriorly

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24
Q

joint capsule is reinforced by

A

collateral ligaments of the ankle medially and laterally

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25
the joint capsule anteriorly attaches to
the neck of the talus
26
__ lines fibrous capsule
synovium
27
medial collateral ligament of the ankle function (deltoid ligament)
1. stabalizes the ankle | 2. limits the ankle eversion and external rotation and lateral translation
28
the deltoid (MCL of the ankle) ligament is divided into
superficial and deep layers consisting of 3-6 ligaments (blends with the capsule, thick and strong)
29
the superficial MCL of the ankle
1. tibionavicular ligament 2. Tibiospring Ligament 3. Tibiocalcaneal Ligament 4. Superficial posterior tibiotalar ligament
30
Tibionavicular ligament
From the anterior border of anterior colliculus to the dorsal navicular tuberosity
31
Tibionavicular ligament crosses
ankle joint & talonavicular portion of mid tarsal joints
32
tibiospring
Anterior colliculus (proximal and posterior to tibionavicular) to the spring ligament (plantar calcaneonavicular ligament)
33
the tibiospring crosses
the ankle joint and subtalar joint
34
Tibiocalcaneal ligament
from the anterior colliculus and intercollicular groove to the medial and posterior aspect of sustentaculum tali
35
Tibiocalcaneal ligament is located deep to
FDL nd TP
36
the strongest superficial deltoid ligament is
tibiocalcaneal
37
tibiocalcaneal ligament crosses the
ankle joint and subtalar joint
38
superficial posterior tibiotalar ligament
From the posterior colliculus and intercollicular groove to the medial tubercle of posterior process of talus
39
superficial posterior tibiotalar ligament can blend with
deep posterior talotibial
40
superficial posterior tibiotalar ligament is taut when
dorsiflexion: limits dorsiflexion and posterior displacement of the talus
41
superficial posterior tibiotalar ligament crosses
the ankle joint
42
the deep layer of the MCL of ankle only crosses
the ankle joint
43
Deep anterior tibiotalar ligament *often just called anterior tibiotalar*
From the anterior inferior aspect of the anterior colliculus to the medial aspect of talar body
44
anterior tibiotalar is deep to
tibionavicular and tibiospring ligaments
45
anterior tibiotalar fibers can often blend with
tibionavicular ligament
46
Deep anterior tibiotalar ligament is taut when
in plantar flexion: limits plantarfelxion and anterior displacement of the talus
47
deep posterior tibiotalar ligament
From the posterior and anterior colliculi and intercollicular groove to the medial talar body
48
largest and thickest component of the deltoid ligament
Deep posterior tibiotalar ligament
49
Deep posterior tibiotalar ligament is deep to
tibiocalcaneal and superficial posterior tibiotalar ligaments
50
Deep posterior tibiotalar ligament is taut in
dorsiflexion, limits dorsiflexion and posterior displacement of the talus
51
Lateral collateral Ligaments of the Ankle
1. anterior talofibular ligament 2. calcaneofibular ligament 3. posterior talofibular ligament
52
Lateral collateral Ligaments of the Ankle all resist
inversion
53
most commonly injured LCL in plantar flexion inversion ankle sprain(and in general ankle sprains)
Anterior talofibular ligament
54
Anterior talofibular ligament
From the anterior inferior edge of lateral malleolus to lateral talar body (sometimes you will see neck)
55
Anterior talofibular ligament is taut in
plantarflexion, resist excessive plantarflexion and anterior talar displacement
56
Anterior talofibular ligament is a __ ligament that crosses ___
Capsular; ankle joint
57
Calcaneofibular ligament is a(n) __ ligament that crosses the
extracapsular: ankle joint and subtalar
58
Calcaneofibular ligament
From lateral malleolus apex (summit) to peroneal spine | lateral calcaneus superior to retrotrochlear eminence
59
Calcaneofibular ligament is torn when
in more severe sprains
60
Calcaneofibular ligament is taut in
dorsiflexion: resists excessive dorsiflexion
61
Posterior talofibular ligament
Runs horizontally from the lateral malleolar fossa to lateral tubercle of posterior process
62
Posterior talofibular ligament is a(n) ___ ligament that crosses the __
capsular; ankle joint
63
Posterior talofibular ligament is taut in
dorsiflexion: resists dorsiflexion
64
which ligament is not commonly torn in ankle sprains
Posterior talofibular ligament
65
subtalar joint is located between
facets of calcaneus and facets of talus
66
Talocalcaneal joint is a __ joint
planar, gliding, synovial joint
67
Talocalcaneal joint has more complex movement because of
concave and convex surfaces: allows translation and rotation
68
subtalar joint is divided into anterior and posterior articulations by
the sinus tarsi and tarsal canal and the interosseous talocalcaneal ligament
69
anterior subtalar joint
talocalcaneonavicular
70
posterior subtalar joint
posterior talocalcaneal
71
Some refer to the ___ as the anatomic subtalar joint
posterior
72
arterial supply subtalar joint
``` lateral tarsal, lateral malleolar, perforating fibular, artery to tarsal canal, artery to sinus tarsi ```
73
Ligaments supporting subtalar joint
1. Posterior talocalcaneal ligament 2. Lateral talocalcaneal ligament 3. Medial talocalcaneal ligament 4. Interosseous talocalcaneal ligament 5. Cervical ligament
74
the subtalar joint is also supported by
tibiocalcaneal and calcaneofibular ligaments
75
Posterior talocalcaneal ligament
From posterior process of talus to superior calcaneus
76
Lateral talocalcaneal ligament
From lateral process of talus to lateral surface of calcaneus
77
Medial talocalcaneal ligament
From medial tubercle of posterior process of talus to posterior edge of sustentaculum tali
78
Deeper plane than calcaneofibular ligament (medial to it)
Lateral talocalcaneal ligament
79
Interosseous talocalcaneal ligament
-Found within the sinus tarsi/tarsal canal (strong bond between talus and calcaneus)
80
Separates anatomic subtalar from talocalcaneonavicular joint
Interosseous talocalcaneal ligament
81
Interosseous talocalcaneal ligament attaches
- Attaches to sulcus tali and sulcus calcanei | - Fibers angled inferolaterally
82
Interosseous talocalcaneal ligament resists
eversion
83
Cervical ligament resists
supination and inversion
84
Cervical ligament attaches
from the superolateral calcaneus within the sinus tarsi to neck of talus
85
Talocalcaneonavicular Joint | Articulation between:
- Anterior and middle facets of talus and calcaneus - Head of talus and spring ligament - Head of talus and posterior facet of navicular (talonavicular)
86
Multiaxial ball and socket joint with talar head , synovial joint; diarthrosis Blood: medial tarsal, medial plantar
Talocalcaneonavicular Joint
87
Talocalcaneonavicular Joint capsule is
weak, reinforced by tibionavicular ligament (medial side) and calcaneonavicular ligament (lateral side)
88
Acetabulum pedis
deep socket that receives the talar head
89
Acetabulum pedis is formed by
- posterior navicular facet, - anterior and middle facets of calcaneus - plantar calcaneonavicular ligament (spring) - dorsal calcaneonavicular ligament (part of bifurcate)
90
funcional subtalar joint
Anatomic subtalar joint + talocalcaneonavicular joint
91
funcional subtalar joint is between
posterior, middle, anterior facets of talus and calcaneus
92
funcional subtalar joint forms
a triple joint complex with midtarsal joint
93
function subtalar joint is a __ joint
triplanar. pronation an supination
94
functional subtalar joint ligaments support
just combine the ligaments that support the anatomic and talocalcaneal part of TCN joint
95
Fibrocartilagenous facet on dorsal surface of ligament (superomedial part)–
supports head of talus and medial longitudinal arch
96
``` Spring ligament (plantar calcaneonavicular ligament) 3 components: ```
1. superomedial 2. inferoplantar longitudinal 3. medioplantar oblique
97
superomedial
sustentaculum tali and edge of middle calcaneal facet to mediosuperior navicular tuberosity
98
inferoplantar longitudinale
coronoid fossa to navicular beak
99
medioplantar oblique
notch between ant. and middle facets of calcaneus to inferomedial navicular
100
Fuses with deltoid ligament (tibionavicular and tibiospring)
spring ligament (plantar calcaneonavicular ligament)
101
spring ligament (plantar calcaneonavicular ligament) is deep to
tibialis posterior tendon
102
Bifurcate ligament
-y shaped ligament
103
Bifurcate ligament attaches proximally
anterior process of calcaneus
104
Bifurcate ligament attaches distally
to dorsolateral navicular, dorsal calcaneonavicular ligament, and dorsomedial cuboid, calcaneocuboid ligament
105
Dorsal talonavicular ligament attaches
from dorsal aspect of talar neck to dorsal aspect of navicular

Lower Extremity Anatomy (16 decks)

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