MSK #9 A&P of Ankle/Foot Flashcards

1
Q

Joint of the ankle and foot

A
  • distal tibiofibular
  • talocrural
  • subtalar
  • midtarsal also called transverse tarsal
  • tarsometatarsal (forefoot)
  • metatarsophalangeal (forefoot)
  • interphalangeal (forefoot)
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2
Q

Articulations of talocrural joint

A
  • formed by distal tibia, distal fibula, and talus
  • synovial hinge joint
  • 1 degree of freedom
  • offers significant stability in dorsiflexion
  • become much more mobile in plantarflexion
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3
Q

Talocrural joint: osteokinematic motions

A

dorsiflexion and plantar flexion

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4
Q

Talocrural joint: Loose packed position

A

10 degress PF, midway between max inversion and eversion

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5
Q

Talocrural joint: Closed packed position

A

max dorsifexion

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6
Q

Talocrural joint: Capsular Pattern

A

PF, DF

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7
Q

Ankle ROM norms

A

DF 0-20
PF 0-50
Inversion 0-35
Eversion 0-15

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8
Q

Subtalar joint: articulations

A
  • formed by 3 articulations (anterior, posterior, and middle) between talus and calcaneus
  • 1 degree of freedom
  • anterior and middle are formed by 2 convex facets on talus/2 concave on calcaneus
  • posterior formed by concave facet on inferior surface of talus and convex on body of calcaneus
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9
Q

Subtalar joint: osteokinematic motions

A

inversion, eversion

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10
Q

Subtalar joint: loose packed position

A

midway between extremes of ROM

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11
Q

Subtalar joint: close packed position

A

supination

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12
Q

Subtalar joint: capsular pattern

A

limitation of varus ROM

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13
Q

Midtarsal joint: All the stuff

A
  • midtarsal (transverse tarsal) joint formed by talocalcaneonavicular joint and calcaneocuboid joint
  • joint has 2 axes: longitudinal and oblique
  • motions around both axes are triplanar
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14
Q

Midtarsal joint: osteokinematic motions

A

inversion, eversion

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15
Q

Midtarsal joint: loose packed position

A

midway between extremes of ROM

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16
Q

Midtarsal joint: close packed position

A

supination

17
Q

Midtarsal joint: capsular pattern

A

DF, PF, adduction, medial rotation

18
Q

Joint that make up the forefoot

A
  • tarsometatarsal
  • metatarsophalangeal
  • interphalangeal
19
Q

Muscles responsible for plantarflexion

A
  • tibialis posterior
  • gastroc
  • soleus
  • peroneus longus and brevis
  • plantaris
  • flexor hallucis
20
Q

Muscles responsible for dorsiflexion

A
  • tibialis anterior
  • extensor hallucis longs
  • extensor digitorum longs
  • peroneus tertius
21
Q

Muscles responsible for inversion

A
  • tibialis posterior
  • tibialis anterior
  • flexor digitorum longus
22
Q

Muscles responsible for eversion

A
  • peroneus longus
  • peroneus brevis
  • peroneus tertius
23
Q

Anterior Talofibular Ligament (ATFL)

A
  • taut during PF
  • resists inversion of talus and calcaneus
  • resist anterior translation of talus on tibia
24
Q

Calcaneofibular Ligament (CFL)

A
  • extracapsular ligament

- resists inversion of talus w/in midrange of talocrural motion

25
Q

Posterior Talofibular Ligament (PTFL)

A
  • resists posterior displacement of the talus on the tibia
26
Q

Deltoid Ligament

A
  • formed by the anterior tibiotalar ligament, tibiocalcaneal ligament, posterior tibiotalar ligament, and tibionavicular ligament
  • provides medial support by resisting eversion of the talus
27
Q

Interosseous Membrane

A
  • consists of a strong fibrous tissue
  • serves to fixate fibula to the tibia
  • distally, the structure blends into the anterior and posterior tibiofibular ligaments
  • provides additional support at the distal tibiofibular syndesmosis joint
28
Q

Distal Tibiofibular joint: resting, convex/concave, osteokinematic/arthrokinematic motions for MT

A

Resting: 0 degrees of PF

Convex/Concave:
Convex- fibula
Concave- tibia

Osteokinematic/Arthrokinematic: opposite direction

29
Q

Talocrural: resting, convex/concave, osteokinematic/arthrokinematic motions for MT

A

Resting: 10 degrees PF, midway between max eversion/inversion

Convex/Concave:
Convex- talus
Concave- tibia and fibula

Osteokinematic/Arthrokinematic: opposite direction

30
Q

Subtalar: resting, convex/concave, osteokinematic/arthrokinematic motions for MT

A

Resting: midway between extremes of ROM

Convex/Concave:
Convex- anterior and middle talus
Concave- anterior and middle calcaneus

Convex- posterior calcaneus
Concave- posterior talus

Osteokinematic/Arthrokinematic: opposite and same depending on intent for manual therapy

31
Q

Intermetatarsal joints: resting, convex/concave, osteokinematic/arthrokinematic motions for MT

A

Resting: midway between extremes of ROM

Convex/Concave:
Convex- more medial metatarsals
Concave- more lateral metatarsals

Osteokinematic/Arthrokinematic: same direction

32
Q

Metatarsophalangeal joints: resting, convex/concave, osteokinematic/arthrokinematic motions for MT

A

Resting: neutral

Convex/Concave:
Convex- metatarsals
Concave- phalanges

Osteokinematic/Arthrokinematic: same direction

33
Q

Interphalangeal joints: resting, convex/concave, osteokinematic/arthrokinematic motions for MT

A

Resting: slight flexion

Convex/Concave:
Convex- proximal phalanges
Concave- distal phalanges

Osteokinematic/Arthrokinematic: same direction