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Scorebuilders Musculoskeletal > Ankle-Foot Complex > Flashcards

Ankle-Foot Complex Flashcards

1
Q

What is the Distal Tibiofibular Joint

A

Formed by the fibrous union between the lateral aspect of the distal tibia and distal fibula

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2
Q

What is the Talocrural joint

A

Articulation between the distal tibia and fibula and the talus.

  • lots of stability in dorsiflexion much more mobile in plantar flexion
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3
Q

What is the joint classification of the talocrural joint?

A

Synovial hinge joint

  • one degree of freedom
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4
Q

What is the open packed position? Closed Packed position and capsular pattern of the Talocrural joint?

A

Open Packed Position: 10 degree plantar flexion, midway between max inversion and eversion
Closed Packed Position: Maximum Dorsiflexion
Capsular Pattern: Plantar Flexion

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5
Q

What is the subtalar joint and its articulations?

A

Anterior and Posterior articulations between the talus and the calcaneus.

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6
Q

Subtalar Joint:

Anterior and Middle Articulations

A

Formed by:
Two Convex Facets on the talus and two concave facets on the calcaneus.

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7
Q

Subtalar Joint:

Posterior Articulation

A

Formed by:

Concave facet on the inferior surface of the talus
Convex facet on the body of the calcaneus

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8
Q

What is the open packed position? Closed Packed position and capsular pattern of the Subtalar Joint?

A

Open Packed Position: Midway between the extremes of motion
Closed Packed Position: supination
Capsular Pattern: limitation of varus ROM

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9
Q

Midtarsal Joint:

Articulation

A

Between the:

Calcaneocuboid joint and the talocalcaneonavicular joint

Considered to have two axes: longitudinal and oblique

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10
Q

What is the open packed position? Closed Packed position and capsular pattern of the Midtarsal Joint?

A

Open Packed Position: midway between the extremes of ROM
Closed Packed Position: supination
Capsular Pattern: Dorsiflexion > plantar flexion > adduction > medial rotation

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11
Q

What joints make up the forefoot?

A

Tarsometatarsal Joints

Metatarsophalangeal Joints

Interphalangeal Joints

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12
Q

What muscles produce Plantar Flexion

A

Tibialis Posterior
Gastrocnemius
Soleus
Peroneus Longus and Brevis
Plantaris
Flexor Hallucis

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13
Q

What muscles produce Dorsiflexion?

A

Tibialis Anterior
Extensor Hallucis Longus
Extensor Digitorum Longus
Peroneus Tertius

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14
Q

What muscles produce Inversion?

A

Tibialis Posterior
Tibialis Anterior
Flexor Digitorum Longus

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15
Q

What Muscles produces Eversion?

A

Peroneus Longus/Brevis/Tertius

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16
Q

What is the anterior talofibular ligament?

A

Taut during plantar flexion

Resists Inversion of the talus and calcaneus

Resists anterior translation of the talus on the tibia

17
Q

What is the calcaneofibular ligament?

A

Resists inversion of the talus [with the midrange of talocrural joint motion]

18
Q

What is the deltoid ligament?

A

formed by the:

Anterior Tibiotalar ligament
Tibiocalcaneal Ligament
Posterior Tibiotalar Ligament
Tibionavicular Ligament

Provides medial ligamentous support by resisting eversion of the talus

19
Q

What is the interosseous membrane and its function?

A

Strong fibrous tissue that fixates the fibular to the tibia.

Provides additional support to the tibiofibular syndesmosis joint

20
Q

What is the plantar fascia and its function?

A

thick layer of fascial tissue on the plantar aspect of foot.

Originates on the calcaneal tuberosity and inserts on the plantar forefoot.

Plays a roles in supporting the weight of the body and also supports the arch of the foot for improved propulsion during gait/

21
Q

What is the retinacula of the foot and its function?

A

Major retinaculum is the: Extensor Retinaculum

Lays on the anterior aspect of the foot, containing the structures of the extensor muscles

prevent bowstringing with ankle dorsiflexion

  • also anterior and peroneal retinaculum
22
Q

What is the retrocalcaneal bursa?

A

lies just anterior to the Achilles tendon where it attaches into the superior calcaneus.

  • Acts as a cushion to the tendon and the bone
  • Can lead to irritation with trauma or overuse

Scorebuilders Musculoskeletal (11 decks)

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