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Musculoskeletal Medicine: Disorders of the Ankle Foot & Toes
Clinical Medicine Module 5
108
Medical
Graduate
07/20/2009

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Cards

Term
Main 3 bones articulating in ankle; ankle mortus
Definition
tibia, fibula, talus
Term
What are the 4 components of clubfoot?
Definition
plantar flxn (equinus), heel addx (varus), high arch, forefort addx
Term
Prevalence of clubfoot: m v. f? genetics? race?
Definition
m>f 2:1; 3-4% risk in siblings; 25% risk w/parent and sibling; higher in hispanics and asians
Term
What should you check w/clubfoot? What should you rule out?
Definition
check correctability; r/o other neuromuscular involvements
Term
What is tx for clubfoot? Under what tx will clubfoot recur and how will shoe size vary?
Definition
casting x 2-4 mos; can recur up to age 7; shoe size 1-1.5 sizes smaller. surgery.
Term
What are 4 types of fallen arches?
Definition
apparent, flexible, rigid, acquired.
Term
How do you tx asymptomatic fallen arches? flexible arches? What purpose do arches serve? What stretching type helps fallen arches? What type of modification is helpful? How frequently is surgery used?
Definition
asymptomatic fallen arches are left alone. flexible need time. arches are not helpful. achilles' stretching. activity and wt modification;. surgery rare.
Term
What is pes planus?
Definition
fallne arches
Term
What is defined as an injury to the ligamentous or musculotendinous structures of ankle??
Definition
ankle sprains and strains
Term
What is the most common ankle due to structural anatomy of ankle?
Definition
inversion injury
Term
bohler's angle
Definition
Term
Which of the following is most and least common: cfl, atfl, ptfl?
Definition
atfl>cfl>ptfl
Term
What type of ankle sprain is usually most severe?
Definition
eversion injury usually more severe
Term
What type of ankle sprain is VERY SERIOUS?
Definition
high ankle sprain
Term
What are 4 aspects of pe for ankle sprains and strains?
Definition
pain and ttp over injury. graded injury. talar tilt test. anterior drawer.
Term
What is tx of ankle sprains and stains?
Definition
RRICE/NSAIDS/ splint. pt (arom/strength/proprioception). surgery rare.
Term
With what problems in addition to pain in malleolar zone (nav to 6 cm up) are x-rays REQUIRED for ankle pain?
Definition
pain in malleolar zone (nav to 6 cm up). AND Bone tenderness @ post edge/tip of malleolus (med or lateral) OR inability to bear weight regardless of limping (4 steps or less)
Term
With what problems in addition to pain in midfoot region (navicular to mid MT) are x-rays REQUIRED for ankle pain?
Definition
Pain in midfoot region (navicular to mid MT) and bone tenderness @base of 5th mt OR bone tenderness @ navicular OR inability to bear weight regardless of limping
Term
Ankle fractures involve what bones/jts?
Definition
maleoli or syndesmosis (typically involve physis in children)
Term
What is the "too many toes sign"?
Definition
pes planus. from behind, you see 3/4 toes.
Term
What are 2 clasifications of ankle fx?
Definition
lauge-hansen system (position and force) or weber/ao system (anatomic level of fib fx)
Term
Regarding pe for ankle fx, what must you always palpate? how do you eval syndesmosis. how hard is a stress test? what should you watch for?
Definition
always palpate up to knee. squeeze test (5 cm up) to eval syndesmosis. stress testing hard initially. watch for lacerations.
Term
3 ligs on lateral side of ankle
Definition
anterior, calcaneal, posterior talar fibular
Term
What views do you typically order for x-ray of ankle fx?
Definition
ap lat, mortise. lat and mortise probably sufficient
Term
you have ankle fx w/syndesmosis- for what else do you look?
Definition
eversion lig deltoid sprain leading to prox fibular fx (masonneuve)
Term
Which ankle view involves tib/fib overlap 10 mm; and talar tilt < 2mm?
Definition
ap
Term
Which ankle view involves the talus dome centered?
Definition
lat
Term
Which ankle view involves medial <4mm, lateral <5.5 mm, and tibiofib overlap 1 mm?
Definition
mortise
Term
On what does tx of ankle fx depend?
Definition
depends on type
Term
If pt hears a pop w/ankle fx, what do you think?
Definition
much more serious injury than it may appear
Term
How are most ankle fx tx?
Definition
most tx w/immob and NWB x 6-8 weeks. slow return to fwb
Term
In what position must ankle fx be immobilized? Do you splint or cast?
Definition
in neutral (90deg). splint until swelling decreases then cast.
Term
What was a study done where er pts w/ankle pain were observed and clinical indications for x-rays determined?
Definition
ottowa rules
Term
What imaging is useful for forefoot fx?
Definition
wb x-rays w/low beam intensity. bone scan for occult stress fx
Term
When do ankle fx require sx?
Definition
if mortise widened or coumpound fx
Term
What are 3 purposes of pt for ankle fx?
Definition
regain rom, proprioception, strengthening
Term
What variant of ankle fx involves high likelihood of post-traumatic arthritis?
Definition
plafond/pilon
Term
What variant of ankle fx involves unstable fx of prox fibula, disruption of deltiod lig and syndesmosis?
Definition
maisonneuve
Term
What is a high energy fx that is difficult to manage d/t wb and comminution?
Definition
calcaneus fx
Term
With what does calcanes fx have high association?
Definition
w/ spinal injury (10%) and bilat in 5-10%
Term
Pt pressents w/extreme pain/tenderness, gross heel widening, and soft tissue ecchymosis (esp. into arch). What do you suspect?
Definition
calcaneus fx
Term
what x-ray views are ordered for calcaneus fx? when might you order ct scan?
Definition
same x-rays as ankle + calcaneus axial view. ct scan for sx planning (spec 3-5 mm slices)
Term
What is tx for calcaneus fx?
Definition
elevation is critical for wound healing. nwb x 6+ wks. no real guidelines for conservative vs. operative tx
Term
What is a lisfranc fx?
Definition
forefoot fx that involves tarso/mt articulations
Term
What are 5-6% of primary care fxs?
Definition
forefoot fx
Term
originates and is contained below jt level lateral malleolar jt fx?
Definition
weber type a- easier to tx
Term
lgr medial gutter space. widening of syndesmosis. fibular fx originates at jt line.
Definition
weber type b
Term
fx of fibula originates above jt line.
Definition
weber type c
Term
What is the usual cause of a forefoot fx? What are other causes?
Definition
usually traumatic. can also be twisting, avulsion, stress related.
Term
What fx disrupts the major wbing complex of foot and can cause metatarsalgia and transfer lesions.
Definition
forefoot fxs
Term
what 4 things do you look for w/pe of forefoot fx?
Definition
painful swelling and tender over fx site. check nv status. forefoot abdx/rot. hlocs.
Term
actual tibial superficial surface of mortus is fx (type of ankle fx)
Definition
plamond/pilon fx. high likelihood of post-traumatic arthritis
Term
What is a blister fx?
Definition
lot of sig swelling acutely in sm confined area- no cast until resolved.
Term
widening of medial gutter space
Definition
deltoid lig injury
Term
On what does tx of forefoot fx depend? Which are very important? Which are less important? What is critical?
Definition
which ray. 1st and 5th very important? 2nd-4th less so. anatomical alignment critical!
Term
How is a non-displaced forefoot fx tx?
Definition
walking cast 2-4 wks
Term
Which forefoot fx typically go to sx?
Definition
1st and 5th
Term
What fx involves the proximal metaphyseal/diaphysieal jct that is often a stress fx that often needs sx?
Definition
jones and pseudo-jones
Term
What type of fx is typically an avulsion injury of the peroneus brevis at he very proximal tip? how do you tx?
Definition
pseudo-jones. splint/cast and f/u
Term
What is the cause of most toe fx?
Definition
most d/t use of improper footwear
Term
Which toes are most vulnerable to toe fx?
Definition
1st and 5th
Term
What are the moi of toe fxs?
Definition
stubbed toe, direct fall/trauma
Term
What do you look for on a a pe of toe fx?
Definition
pain swelling, bruising, and deformity. ttp over fx site
Term
What is dx for toe rfx
Definition
x-rays often dx
Term
What is tx for distal toe fx?
Definition
splint/buddy tape. stiff soled shoes.
Term
What tx is involved w/interphalangeal fxs?
Definition
splint in lesser toes. stiff soled shoes
Term
How is tx forproximal phalanx and ip jt fx tx?
Definition
fix w/k-wires or lag screw
Term
What are complications of toe fx?
Definition
non-union (rare); post-traumatic OA (debilitating in great toe)
Term
How are sesamoid "fx's" often dx? what type of sesamoid fx is most common? What is another type? what do you look for to tell if it is a fx?
Definition
often misdx. bipartite in 10-30%. bilat in 85%. rounded edges. no callus in 3 wks.
Term
Are medial or lateral sesamoid fxs most commmon?
Definition
med>lat d/t wb forces
Term
What are sesamoid fx d/t?
Definition
repetitive hyper-ext
Term
Where does achilles tendon injury usually occur?
Definition
2-6 cm proximal to insertion
Term
What age and gender is usually associated w/achilles tendon injury?
Definition
30-50yoa; m=f
Term
What is felt as a sudden "snap " or "pop" or "gunshot" and is often audible by others?
Definition
achilles' tendon injury
Term
What is looked for w/pe of achilles tendon injury? How frequently is it missed? What type of test must you do?
Definition
palpable defect. often missed (up to 25%). thompson test w/in 48hrs
Term
What imaging is used for achiles' tendon injury?
Definition
x-ray to check bones. ct to eval bony avulsion. mri superior for tendon.
Term
What is superior to dx achilles' tendon injury?
Definition
mri
Term
How is achilles' tendon injury tx? for what is sx repair reserved? Why is sx repair better?
Definition
progressive casting & wb. sx repair. usually reserved for complete ruptures. less cast time better strength, decreased recurrence. pt. no jumping x 9-12 mos.
Term
What involves heel pain assoc. w/microtrauma of calcaneal insertion?
Definition
plantar fasciitis
Term
In what age group is plantar fasciitis most common? gender?
Definition
3rd-5th decades. f>m
Term
PE reveals tender over heel and plantar facia, usually worse w/toe dorsiflxn.
Definition
plantar fasciitis
Term
What imaging is indicated for plantar fasciitis?
Definition
rarely indicated
Term
Tx for plantar fasciitis
Definition
pt for stretching & u/s. nsaids. night splints. orthotics/heel pads. cortisone injections. stiff soled shoes.
Term
What involves growing of nail into surrounding tissue? What is often the cause?
Definition
ingrown toenail. often d/t shoes, sports. poor trimming habits
Term
the more distal the toe fx,
Definition
the more you can tx it nonoperatively
Term
Which ingrown toenail stage involves red skin?
Definition
stage 1
Term
Which ingrown toenail stage involves infection/pus?
Definition
stage 2
Term
Which ingrown toenail stage involves granulation?
Definition
stage 3
Term
What does conservative tx of ingrown toenails involve?
Definition
elevation of nail plate. freq warm soaks. loose fitting shoes. selective nail trimming.
Term
What is definitive tx of ingrown toenails?
Definition
partial/total nail excision.
Term
What are 2 complications of ingrwon toenails?
Definition
infection and recurrence
Term
How do you anesthetize toe for teonail removal?
Definition
ring block/4 digital nn. 1 mL around ea
Term
How do you prep and drape toe for toenail removal?
Definition
tourniquet
Term
How do you cut toenails for toenail removal?
Definition
lengthwise. PRTL; 4-5 mm from edge. WHOLE: halfway
Term
How do you release toenail from nail bed?
Definition
elevator or scissors. gentle pulling to decrease trauma.
Term
After you anesthetize toe, prep and drape, cut toenail lenthwise, and release nail from bed, what do you do?
Definition
blate/neutralize/dress
Term
compress calf causing plantar flexion
Definition
thompson test w/in 48 hrs to test for achilles tendon injury
Term
What is the purpose of proper soewear?
Definition
protect, cushion, and fashion
Term
How do feet change w/age?
Definition
inc. in size w/age- same shoe size!
Term
What is teh nml wear pattern for proper shoewear?
Definition
outer sole, medial at toe, lateral at heel
Term
When should proper fit be determined? How should the foot be positioned? How much further beyond toe should shoe extend? How tight should shoes fit? How should shoe feel? How should laces be positioned?
Definition
end of day. weight bearing. upper w/o wrinkle. no bulge over welt. 3/8 to 1/2 beyond toe. snug but not crowded. comfortable from get go. laces should parallel.
Term
What is teh goal of crutch training?
Definition
reduce wb stresses: cane
Term
How should the gait change w/ cane? At which side should cane be used? Where should the top of the cane be positioned?
Definition
nml gait. contralateral side. top @ grtr troch. light portable and fashionable.
Term
How should crutches fit? What is teh stance for crutches?
Definition
more support. requires more balance coordination and upper body strength. 1-2" below axilla. grip @ grtr troch. stance: tripod.
Term
What walking support mechanism provides greater support balance and bulk w/ lots of options incl seats, wheels, handgrips, and bags?
Definition
wakers.
Term
How should steps begin w/crutch training? How should pt lean on crutches? How does teh gait change once pt is comfortable?
Definition
begin w/smaller steps and "swing to" the device. do not lean on crutches- brachial plexus injury. "swing through" gait once comfortable.
Term
How do pts on crutches take stairs? Are crutches associated w/good or bad?
Definition
up w/the good; down w/ the bad. the crutches are associated w/the bad. sit and scoot. pt referral for crutch training, gait training, balance and proprioception, and fall prevention (in home).
Term
Why might you refer for pt w/crutch training?
Definition
crutch training, gait training, balance and proprioception, and fall prevention (in home).
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