Flashcards in MSK radiology metabolic and endocrine Deck (21):
where is bone mineral density measured?
hip and spine
-1 to -2.5
> - 2.5
how much bone density has to be reduced to see in xray?
xray findings in osteoporosis?
thin / absent trabeculae with thick remaining trabaculae
thinned / irregular scalloped cortex
intracortical tunnelling and porosity
spine in osteoporosis?
vertical striaed appearance due to loss of horizontal trabeculae
what deformities are seen in osteoporosis in spine?
Sacrum in osteoporosis?
insufficiency fracture parallel to SI joint
insufficiency fracture in ?scintigraphy .. what sign
MRI and scintigraphy in osteoporosis?
sensitive in detecting femoral neck insufficiency fracture
what are the common sites of insufficiency fracture?
which vertebral levels are more prone for stress fracture
above T7 it is rare
osteoporosis type I?
occurs in post menopausal women
15-20 years after menopause
disproportionate loss of trabecular bone
osteoprosis type II?
senile osteoporosis more than 75 years due to hyperparathyroidism
there is proportionate loss of trabecular and cortical bone
overactivity of sympathetic nervous system causing pain, swelling and hyperemia with excessive bone resorption
common cause of sudek atrophy
idiopathic juvenile osteoporosis - age
occurs in prepubertal children
how long does it present
Vertebral bodies and long bones
commonly distal tibial metaphysis