Lecture Midterm Flashcards
(68 cards)
_____ is the fusion of the atlas with the occipital bone
Occipitalization
Occipitalization is sometimes called “_____” block
most cephalic
Occipitalization in young children is usually ____
asymptomatic
Occipitalization in older children/young adults there are symptoms (3)
Headaches, visual and upper extremity issues
Next clinical protocol to confirm occipitalization is a ____ study
flexion/ext
______ is the flattening of the sphenoid bone and/or occipital bone
PLATYBASIA
Platybasia is determined by: ______ AngleNormal Range: ___________ than this represents platybasia
Martin’s Basilar 123˚-152˚Greater
______ is the most universally accepted (Mds, courts, deposition) to determine platybasiaThe Dens:Normal: not greater than ____ mm for malesnot greater than ____ mm for females
McGregor’s Line8mm10mm
Other tests to determine platybasia_____ LineN: Dens not greater than ____ mm _____ the line_____ LineN: should see some occipital bone lower than the _____
Chamberlain’s3, aboveMacRae’sforamen magnum
______ is sometimes considered this AKA “Basilar Impression” or “Basilar Invagination”
PLATYBASIA
______ is a small opening due to the failure of fusion of the lamina and has _____ clinical significance
Spina Bifida Occulta, no
_____ large defect with no protection of the spinal cord
Spina Bifida Vera
Spina Bifida Vera may allow protrusion of the _____ and/or ______
meninges, spinal cord
Spina Bifida Vera is thought to be caused by deficiency of _____ in the ____ trimester
folic acid, 1st
POSTERIOR SPONDYLOSCHISIS is a posterior cleft of the ______ of ______
posterior arch, C-1
POSTERIOR SPONDYLOSCHISIS is sometimes referred to as “_____of the posterior arch”
non union
POSTERIOR SPONDYLOSCHISIS is observed by not seeing the _____ line
spinal laminar junction
______ is described as two or more segments joined together
Blocked vertebrae
2 Types of Blocked vertebrae:_____ block: concavity on the ant surface_____ block: many presentations-intentional
CongenitalAcquired
With _____, the nucleus pulposus herniates through the vertebral endplate
SCHMORL’S NODE
Some think that the _____ is the cause of SCHMORL’S NODE, Y&R list it as a ______
trauma, birth defect
SCHMORL’S NODE features (3)
decreased disc spacemost commonly found on the ant/sup surfaceIncreased A-P body width
With Schmorl’s node you can get a _____ through the endplate and the entire _____ is depressed
pencil eraser, endplate
A _____ is a separate piece of bone that articulates with the transverse process of cervical vertebra
cervical rib