Lower limb: Calcaneal & Talar fracture Flashcards
by what mechanism do calcaneal fractures occur
due to fall from height onto the heel(eg fall from ladder0
what different calcaneal fractures can occur
extra-articular or involving the subtalar joint
what other injuries may be associated with a calcaneal fracture
substantial soft tissue swelling and compartment syndrome of foot
what is prognosis of calcaneal fractures dependant
on extent of involvement of subtalar joint and the degree of communication
describe what tends to happen to the heal in calcaneal fractures
tends to drift into valgus position with widened heel causing impingement of lateral ankle tendons
what treatment is advocated by many surgeons in younger patients with calcaneal fracture
ORIF, but no evidence it imporves pain or function long term
in what patients would subtalar arthrodesis be a option for treatment
for those with chronic pain due to subtalar damage or OA
describe the mechanism by which talar neck fractures usually occur
forced dorsiflexion from rapid deceleration(eg aircraft or car crash)
what different types of talar neck fractures can occur
undisplaced or displaced with subluxation of subtalar joint
what injuries can high energy talar neck fractures result in
dislocation of body of talus from the ankle joint or the head of the talus from the talonavicular joint
where does the body of the talus get its blood supply
distally with anastomoses around and traversing the talar neck
with what injury of the talus is there high risk of AVN, and of what part of the foot
with displacement of fracture or subluxation/dislocation of talus, risk of AVM of talar body
how are displaced talar fractures treated
by closed or open reduction and screw fixation
