cervical spine- normal Flashcards Preview

DI 1101 > cervical spine- normal > Flashcards

Flashcards in cervical spine- normal Deck (25)
Loading flashcards...
1
Q

what is the min and sup views for cervical

A

min- AP (or APOM) and lat

sup- oblique, swimmers, flex/ext

2
Q

search pattern of APOM

A

A- paradontoid space, lat masses, c0-c1
B- all
C- joint c0 and c1
S- check dark areas

3
Q

Ap lower cervical; levels and what should you see

A

c3-7

unicate process on edges of articulating surfaces of vertbodies

4
Q

what is the sine wave on on what view will you see it

A

lat thoracic

pattern along lat margins of articullar pillars (along facet j), should have no pointy bits protruding lat

5
Q

what is harris’ ring

A

C2 TVP (looks like a cortical circle)

6
Q

What is the antlanto dental interspace and what is the max for child and adult

A

b/w odontoid and ant tubercle

adult max= 3mm
child max= 5mm

7
Q

what should be the search pattern for the cervical spine

A

A- georges line, spinolaminar line(bw spine and lamina)
B- count all bones
C- ADI, disk spaces

8
Q

What does obliques in the cervical spine visualize well

A

IVF + pedicals

9
Q

How do u know what side ivfs ur looking at

A

ASS- Ant= same side ivfs

POO- post= opposisite side ivfs

10
Q

how can u tell right or left sided structures in an oblique

A

the marker will tell you what side structures you are looking at

11
Q

What do flex and extension studies of the cervical spine assess

A

assesses each vert motion segment seperatly in flex and ext

-assesses both rot +translation @ each vert seg

12
Q

what are causes of instability in the c spine

A
developmental
degenerative
trauma
tumor
infection
post op
13
Q

strongest predictors of cervical instability

A
  • muscle dysfunction
  • motor control abnormalities
  • strength loses
14
Q

how to measure instability in the cervical spine

A

measure dif between normal and flex or ext
both translation (using georges line)
or angulation

every segment

15
Q

(instability) amount of translation in lumbar spine and angulation in l1-4, l4/5, l5/s1 to constitute instability

A

translation= >4.5 mm
angulation l1-4= 15
l4/5= 20
l5/s1=25

16
Q

amount of translation and angulation in cervical spine to constitute instability

A

> 3.5mm translation

>11-12 angulation

17
Q

what is chamberlins line and what is an abnormal measurement for it

A

-post margin of hard palate to post aspect of foramen magnum

abnormal- if dens projects > 7mm above (basillar impression)

18
Q

what is mcgregors line and what is an abnormal measurement in it for males and females

A

-post margin of hard palate to inf surface of occiput

abnormal; if dens projects >8mm in males or 10mm in females

19
Q

normal lordosis angle in the cervical spine

A

35-45 degrees

20
Q

what is pillar hyperplasia

A

when there is a lack of lordosis

-lines on facet planes are parallel instead of converging together

21
Q

cervical gravitational line (what does it pass thru + what is it assessing for)

A

vertical from apex of dens and should pass thru c7 body

-assesses for ant head carriage

22
Q

retropharyngeal interspace- level it is measured at and what is the max

A

C2->post pharynx

max=7mm

23
Q

retrotracheal interpace- what level is it measured at and what is the max

A

c6->post pharynx

max=20-22mm

24
Q

how to measure the saggital dimesion of the spinal cord in the cervical spine and what is considered stenosis

A

midpoint of VB->spinolaminar line

from c4-7= <12mm = stenosis

25
Q

where is a calcified stylohyoid lig found

A

travel from the styloid process to the hyoid bone

-will see density overlapping the angles of the mandibke