Ankle Flashcards
Malleoli - medial vs. lateral
Lateral goes further distal/posterior than medial
Talocrural joint
mortise
tibia to talus
fibula to talus
Talocrural joint is most stable in
DF
slack with PF
Talocrural joint - coupling
DF, ABD, EV
PF, ADD, INV
Talocrural joint - open chain
Talus on tibia
Convex on concave = OPP
Subtalar joint ROM
20 DF 50 PF 20 INV 10 EV 10 ABD 20 ADD
Subtalar - pronation is what
Eversion, DF, ABD
Subtalar - supination is what
INV, PF, ADD
Subtalar - varus foot =
inversion
Subtalar - valgus foot =
eversion
Subtalar neutral
max conrguency/max contact area
2 to 1 ratio of supination to pronation
0-3 degrees inverted
Transverse tarsal (midtarsal) is made of what
talonavicular and calcaneocuboid
Transverse tarsal (midtarsal) close packed
Full supination
Transverse tarsal (midtarsal) open packed
Mid range
Transverse tarsal (midtarsal) - Talonavicular joint is what
Convex head of talus
Concave body of navicular
Subtalar joint coupling - when calcaneous is loose
forefoot and hindfoot move in same direction as tibia
If calcaneous is on floor - they move independently
1st TMT coupled motion
DF and inv
PF and ev
Metatarsophalangeal - forefoot varus is what
Hingfoot in neutral, forefoot lifted medially
Metatarsophalangeal - forefoot valgus is what
forefoot lifted on lateral side
Pes planus
flat foot, pronated, low arch
Pes cavus
high arch, most weight on forefoot or hindfoot
Pes rectus
normal arch
Pes valgus
ankle leaning medially
Pes varus
ankle leaning laterally
Ottowa ankle rules
Unable to WB 4 steps
Bony tenderness at post edge or up to 6cm above malleoli
Ottowa midfoot rules
Unable to WB 4 steps
Bony tenderness over navicular or base of 5th met
Inferior tib/fib
close packed
open packed
Close = DF and ER Open = PF
Talocrural
close packed
open packed
DF and ER
20 degrees PF
Talocrural capsular pattern
PF then DF
Subtalar
close packed
open packed
eversion
neutral
Subtalar - capsular pattern
inversion varus then valgus
Midtarsal/tarsal - metatarsal
close packed
open packed
sup
neutral
Midtarsal/tarsal - metatarsal capsular pattern
DF, pF, add, IR
Metatarsal phalangeal
close
open
Close - full ext
open - slight ext
Interphalangeal
close
open
close - full ext
open - slight flex
Rearfoot varus
forefoot pronates
may flex MCP or IP joints of 1st toe
Rearfoot valgus
Forefoot supinated
foot looks pes planus, tibia will IR
Forefoot varus
Forefoot pronates calcaneus may evert tibia will IR hipp IR incresaed flex at knee
