DPT 741: Proximal & Distal Tibiofibular Joints Study Guide

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23 Terms

1
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Bones that comprise the ankle (3)

Tibia

Fibula

Talus

<p>Tibia</p><p>Fibula</p><p>Talus</p>
2
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Joints of the ankle (3)

Talocrural joint (primary)

Proximal tibiofibular joint

Distal tibiofibular joint

<p>Talocrural joint (primary)</p><p>Proximal tibiofibular joint</p><p>Distal tibiofibular joint</p>
3
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What joint(s) enable weight transfer between the ankle and the foot?

Proximal and distal tibiofibular joints

<p>Proximal and distal tibiofibular joints</p>
4
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A majority of body weight is transferred through the (bone)

Tibia

<p>Tibia</p>
5
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What percentage of total body weight is transferred through the tibia?

90% total body weight

<p>90% total body weight</p>
6
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Joint classification of the proximal tibiofibular joint

Synovial joint (2 flat or slightly oval surfaces)

<p>Synovial joint (2 flat or slightly oval surfaces)</p>
7
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Movement allowed at proximal tibiofibular joint

Little gliding movement

<p>Little gliding movement</p>
8
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Stability for the proximal tibiofibular joint is provided by... (3 structures)

Ligaments

Joint capsule

Popliteus tendon

<p>Ligaments</p><p>Joint capsule</p><p>Popliteus tendon</p>
9
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Joint classification of the distal tibiofibular joint

Synarthrodial joint

<p>Synarthrodial joint</p>
10
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How much movement is allowed at the distal tibiofibular joint?

Minimal movement

<p>Minimal movement</p>
11
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Stability for the distal tibiofibular joint is provided by... (3 structures)

Interosseous ligament

Anterior tibiofibular ligament

Posterior tibiofibular ligament

<p>Interosseous ligament</p><p>Anterior tibiofibular ligament</p><p>Posterior tibiofibular ligament</p>
12
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In the talocrural joint, is the talus the convex or concave component?

Talus is CONVEX in the talocrural joint

<p>Talus is CONVEX in the talocrural joint</p>
13
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What is the concave component of the talocrural joint?

The tibia and fibula

<p>The tibia and fibula</p>
14
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What type of joint is the talocrural joint? (specific classification based on shape)

Mortise joint

<p>Mortise joint</p>
15
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Function of the deltoid ligament (I function, 3 joints)

Limits eversion at the:

Talocrural joint

Subtalar joint

Talonavicular joint

<p>Limits eversion at the:</p><p>Talocrural joint</p><p>Subtalar joint</p><p>Talonavicular joint</p>
16
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Components of the deltoid ligament (3)

Tibionavicular fibers

Tibiocalcaneal fibers

Tibiotalar fibers

<p>Tibionavicular fibers</p><p>Tibiocalcaneal fibers</p><p>Tibiotalar fibers</p>
17
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Why does the deltoid ligament have a lower injury rate than the lateral ankle ligaments? (2 reasons)

Higher strength of deltoid ligaments

Lateral malleolus blocks excessive eversion

<p>Higher strength of deltoid ligaments</p><p>Lateral malleolus blocks excessive eversion</p>
18
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What ligament stabilizes the talus within the mortise joint?

Posterior talofibular ligament

<p>Posterior talofibular ligament</p>
19
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What ligament limits inversion and dorsiflexion?

Calcaneofibular ligament

<p>Calcaneofibular ligament</p>
20
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What ligament limits inversion and plantarflexion?

Anterior talofibular ligament

<p>Anterior talofibular ligament</p>
21
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Most frequently injured ligament in ankle and foot complex

Anterior talofibular ligament

<p>Anterior talofibular ligament</p>
22
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Most common injury mechanism for anterior talofibular ligament sprain

Inversion + plantarflexion during weight bearing

<p>Inversion + plantarflexion during weight bearing</p>
23
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The relative inability of the _______ ________ to block the medial side of mortise joint contributes to anterior talofibular ligament sprains.

Medial malleolus

<p>Medial malleolus</p>