Ankle/Foot Flashcards

1
Q

How many bones and articulations are in the foot and ankle?

A

28 bones, 55 articulations

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2
Q

Where are the peak vertical forces?

A

120% BW during walking

275% BW during running

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3
Q

Which parts of the foot receive the majority of the load?

A

Rearfoot, metatarsal heads

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4
Q

What are the functions of the foot?

A

Acts as a support base that provides necessary stability for upright posture with minimal muscle effort
Provides a mechanism for rotation of tibia and fibula during stance
Provides flexibility to adapt to uneven terrain
Provides flexibility for absorption of shock
Acts as a lever during push-off

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5
Q

Tibiofibular joint type

A

Syndesmosis

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6
Q

Tibiofibular resting position

A

plantarflexion

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7
Q

Tibiofibular close packed

A

Maximum dorsiflexion

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8
Q

Tibiofibular capsular pattern

A

pain on stress

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9
Q

Tibiofibular supporting ligaments

A

Anterior tibiofibular
Posterior tibiofibular
Interosseous ligament

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10
Q

Talocrural joint type

A

uniaxial modified hinge joint

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11
Q

Talcocrural resting position

A

10 plantarflexion

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12
Q

Talocrural close packed

A

maximum dorsiflexion

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13
Q

Talocrural capsular pattern

A

PF, DF

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14
Q

Talocrural medially supporting ligaments

A
Deltoid Ligament
Tibionavicular
Tibiocalcaneal
Posterior Tibiotalar
Anterior Tibiotalar
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15
Q

Talocural laterally supporting ligament

A

Lateral Collateral
Anterior Talofibular
Posterior Talofibular
Calcaneofibular

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16
Q

Subtalar degrees of freedom

A

3

17
Q

Subtalar resting position

A

midway between extremes of ROM

18
Q

Subtalar close packed

A

supination

19
Q

Subtalar capsular pattern

A

varus, valgus at rearfoot

20
Q

Subtalar supporting ligaments

A

Lateral talocalcaneal
Medial talocalcaneal
Cervical ligament
Interosseous ligament