average angle for foraminal views c spine

[willabeast]

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what is a good average starting angle for fluoro positioning for a c spine foraminal view? i want to check for distance form foramen on my c spine facet rhizotomies. thank you.😕

 

[facets]

45 degrees contralateral oblique

 

[willabeast]

45 degrees contralateral oblique

45 degrees seems a little steep to me. but if everyone uses it then i will.
i was thinking 5 -10 degrees less?
all i am doing with this is making sure my facet rhizotomy needles are not too close to the foramen.

 

[101N]

45 degrees seems a little steep to me. but if everyone uses it then i will.
i was thinking 5 -10 degrees less?
all i am doing with this is making sure my facet rhizotomy needles are not too close to the foramen.

Start to look at the facets in oblique view. When you can see sharp cortical boarders, stop. 45 degrees will get you close but you can do better if you
use the facet cortices.

Look at figure 8.6 in the link below:

http://www.abhamed.net/uploads/DOCS/Books/Radiology/MER2/htm/MER2/HTML/181.htm

 

[bedrock]

45 degrees seems a little steep to me. but if everyone uses it then i will.
i was thinking 5 -10 degrees less?
all i am doing with this is making sure my facet rhizotomy needles are not too close to the foramen.

I go 30 degrees contralateral oblique and then fine-tune to get sharp foraminal borders