Radiology Flashcards
appearance of comminution fracture
bone splinters/fragments
appearance of angulation bone fracture
distal portion of the bone points in a different direction
appearance of impaction fracture
ends of bones are jammed together
appearance of avulsion fracture
fragment of bone tears away from main bone mass
what is the posterior fat pad sign?
normally there is fat anterior to distal humerus
if an effusion occurs it displaces the fat pad posterior to the distal humerus
are children’s bones soft?
yes
what happens to children’s bones
tend to bend or bow incomplete fractures (greenstick)
what is the physis
growth plate
it is a lucency between the epiphysis and metaphysis
weakest part of the bone
classification of physis injuries
Salter-Harris Classification
when should you expect a bone abnormality?
when injury is out of proportion with mechanism
risks in lower limb injury immobility
dehydration starvation DVT PE pneumonia
most likely direction of hip dislocation
posterior
two types of proximal femur fractures
- intra-capsular
2. extra-capsular
risks in intra-capsular proximal femur fracture
interferes with blood supply to femoral head (AVN risk)
management of intra-capsular proximal femur fracture
hemi-arthroplasty
THR
