More On Foot Amputations Flashcards
Lisfranc joints
Disarticulated at tarsal/metatarsal joint
Chopart amputations
Disarticulation at
- talonavicular
- calcaneocuboid
This amputation maintains heel pad
Syme’s
Who is most likely to get a partial foot amputation?
usu result from vascular problems with elderly people
Shoes used to protect remaining tissue (partial foot amputation)
BEST
- neuropathic walker boot
- AFO
ADEQUATE
- shoe insert with extra depth
- post-op shoe
What happen if the forefoot rocker is lost?
- decreased velocity
- increased energy cost
- increased vertical forces
What type of contracture do partial foot amputees often get? What does this result in?
- PF
- Results in plantar pressure and pain (esp at 1st and 5th met heads, navicular, malleoli, and tibial crest)
What often accompanies a toe filler with partial amputations?
Extended heel shank
Aside from custom orthotics and toe fillers, what else may be used to help restore anterior support and controlled fulcrum for forward motion?
- UCBL orthotics (controls foot motion better than shoe alone)
- cosmetic slippers
Risks associated with digit/partial ray amputation
- excessive pronation
- increased pressure on remaining rays
Risks associated with ray/multiple ray amputation
- multiple central ray amputations don’t function well due to increased pressure on borders
- get generally increased pressure to remaining surface area
Risks associated with transmetatarsal amputation
- increased pressure
- not particularly successful
- should be limited to intact vasculature
Risks associated with Lisfranc and Chopart amputations
- increased pressure
- equinus and varus deformities
- skin breakdown
Why does the pt get an equinus and varus deformity?
- pull of PF
- loss of DF and peroneal muscles
Prevalence of Chopart and Lisfranc amputations
Not typically done