week 5 - lumbar and thoracic Flashcards
common views of lumbar
AP lumbopelvic
lateral lumbosacral
lumbar oblique
AP lumbosacral spot
Lateral lumbosacral
which SI joint line is most medial and why
posterior as the anterior joint line has an increased angle of around 30
which lumbar view allows us to see through the facet joints
lumbar oblique
what does “spot” mean in the views
focussed
what are the 2 methods of scoliosis evaluation
Cobbs
risser - ferguston
what is the average for the lumbar lordosis measurement
50-60
what does an increase in lumbar lordosis do
moves nucleus pulposus anteriorly
where does the lumbar gravity line pass through and intersect at
centre of L3 body and intersects at sacral base
which classification of spondylolisthesis uses grade 1-5
meyerdings
what is spondyloptosis
when the vertebral body has completely slipped beyond sacral promontory
what is the most common spondylolisthesis
L5 on s1 due to pressure and gravity
using ullmans line, where should L5 lay
posteriorly to or just contact the line
if L5 crosses ullmans line, what could it suggest
anterolithesis
what is spinal sternosis
decrease in size of vertebral canal
what are the 4 measurements involved in canal to body ratio
interpediculate dimension
sagittal canal dimension
transverse body dimension
sagittal dimension
how are the 4 measurements combined to create a ratio
interpediculate x sagittal canal / transverse body x sagittal
what does a higher canal to body ratio show
smaller spinal canal and possible spinal sternosis
describe the spinous processes of thoracic vertebrae
downward pointing
what are the common views for thoracic
AP thoracic
lateral thoracic
lateral cervicothoracic junction (swimmers projection)
what does agenesis mean
never created
what does osteolytic tumours do
break down bone
what does osteoblastic tumours do
build bone
what are block vertebra
fusion of two or more vertebra secondary to embryonic failure of somite segmentation
what are butterly vertebra
page 296
what does an oblique view show
pars inter articularis - check to see if its broken
