Treatment of Pelvic and Acetabular Fractures Flashcards
when should you do a CT scan for a pelvic fracture?
suspected acetabular fracture
suspected sacral fracture
what makes up the weight-bearing axis?
sacro-iliac joint
ilial body
acetabulum
when should you be concerned for pelvic canal diameter?
if narrowed more than 50%
when is conservative management good for pelvic fractures?
do not involve weight bearing axis
>10 days old with minimal displacement and no pelvic canal narrowing
when is it easiest for surgery to be performed for pelvic fractures?
<4-5 days after injury
what does a sacroiliac fracture luxation look like on radiographs?
a step between the ilium and the caudal aspect of the affected sacral wing
are sacroiliac luxations usually bilateral or unilateral?
unilateral
what is the preferred treatment for a sacroiliac luxation?
lag screw placement
where is the caudal segment of an iliac fracture usually displaced?
medial and cranial
what are the principles of treatment of acetabular fractures?
anatomical reduction
rigid fixation
early mobilization
what can be done for comminuted/irreparable acetabular fractures?
femoral head and neck osteotomy
conservative management
total hip replacement
what are decision-making criteria for pelvic fractures?
integrity of weight-bearing axis
pelvic canal diameter
fracture duration
how long is cage rest for pelvic fractures with conservative management?
4-6 weeks
what nerve can become entrapped in callus after a pelvic fracture?
sciatic nerve
if there is a sacro-iliac luxation, is there a sacral fracture?
no necessarily
how are lag screws placed for sacro-iliac luxation?
one long one into sacral body
one short one into dorso-cranial sacral wing for positioning
what should you avoid damaging when reducing an iliac fracture?
lumbosacral/sciatic nerve trunk
just medial and dorsal to iliac body
