Ankle: Anatomy 1 Flashcards
Functionally, the foot can be broken down into 3 sections:
- hindfoot (rearfoot)
- midfoot (midtarsal joint)
- forefoot
Hindfoot is composed of
- talus
- calcaneus
Midfoot is composed of
- navicular
- cuboid
- cuneiforms
Forefoot is composed of
- metatarsals
- phalanges
Foot: medial column is composed of
- talus
- navicular
- 3 cuneiforms
- metatarsals 1-3 with phalanges
Foot: lateral column is composed of
- calcaneus
- cuboid
- metatarsals 4-5 with phalanges
What are the major joints of the foot?
- talocrural
- subtalar
- Chopart’s joint
- Lisfranc’s joint
What composes the talocrural joint?
- talus
- distal tib/fib
Chopart’s joint connects what to what
hindfoot to midfoot
Chopart’s (transverse tarsal) joint includes these two joints
- calcaneocuboid
- talonavicular
Lisfranc’s joint connects what to what?
midfoot to forefoot
Lisfranc’s joints include these joints
tarsomatatarsal joint
Tibiofibular joint: resting position
PF
Tibiofibular joint: close packed position
max DF
Tibiofibular joint: capsular pattern
pain when joint is stressed
Tibiofibular ROM: PF
50˚
Tibiofibular ROM: DF with knee extended
10˚
Tibiofibular ROM: DF with knee flexed
20˚
TCJ: resting position
10˚ between plantarflexion midway between inversion and eversion
TCJ: close packed position
max DF
TCJ: capsular pattern
PF > DF
STJ: resting position
midway between extremes of ROM
STJ: close packed position
supination
STJ: capsular pattern
limited ROM (varus, valgus)
What type of joint is the proximal tibiofibular joint?
synovial
Ankle DF causes what motions at the proximal tibiofibular joint?
superior glide and ER of the fibula
Distal tibiofibular joint: what kind of joint?
syndesmosis
Distal tibiofibular joint: DF causes spreading of the tibiofibular joint as well as what motion at the fibula?
superior glide
Distal tibiofibular joint: Minimal movement (#) DF causes spreading of the joint as well as superior glide of the fibula
1-2mm
Fibula carries about (%) of axial loading which is increased with (movement)
17%
DF
