Lets say you're holding c-spine on a person, and suddenly they refuse any treatment after that, and asks you to let go. Are there any "tests" you can do in order to "clear" c-spine ('clear' would not be the best word, but I can't find another word for it.)
Another example is that you're holding c-spine as a precaution (kind of like the beginning of your national trauma assessment) and patient doesn't feel any pain and/or condition improves. Can you just let go or are there some specific tests you can do?
Clear is the correct terminology. Although we've overloaded the meaning.
And certainly you can do it. You do it every day. How do you know your medical patient isn't lying to you and didn't fling themselves down the stairs? You don't. They could die of a horrific spinal trauma because you were too lazy to board and collar them.
Yes I know only their belly hurt, but nobody cares about your belly if you have a spinal injury!
I know what you're thinking, "But Christopher, that sounds ridiculous."
Yes, but that is our mode of spinal care.
So let's get back to the more important issues:
(1) Can you "clear" a C-spine in the field?
(2) What does "clear" actually mean?
(3) What tools are available to help me "clear" a C-spine in the field?
(4) So I've cleared the C-spine...what now?!
1. Can you "clear" a C-spine in the field?
Yes, most modern EMS systems have been doing this for at least the last 5 years.
2. What does "clear" actually mean?
To you? It means not using Spinal Motion Restriction procedures.
To the hospital? It means not imaging the spine.
To the radiologist? It means no significant findings during imaging studies.
It means very different things to different people. Keep in mind
none of these are the same thing!
3. What tools are available to help me "clear" a C-spine in the field?
NEXUS and the Canadian C-Spine Rule are the two most commonly talked about. However, these two rules are not intended to inform YOUR decision about whether to apply SMR procedures, instead they were validated to inform THE HOSPITAL'S decision about whether or not to send the patient for imaging.
This is a huge distinction. But does it matter?
Yes and no. You need to take away from this that the NEXUS and CCR were not designed to inform your opinion about the appropriateness of SMR. It will result in a large about of overtriage from a field perspective because they deal with
radiologically significant findings. Note that I did not say
clinically significant.
The ideal EMS tool would inform your opinion about the appropriateness of SMR such that 0
clinically significant spinal injuries were missed. Many retrospective and prospective studies exist which have validated the appropriateness of NEXUS and CCR for prehospital use, however, you should understand the difference.
Also note that these studies say nothing of what is appropriate SMR!
4. So I've cleared the C-spine...what now?!
Don't be weirded out when you hear that somebody who had a "cleared" C-spine had a "significant spinal injury". Everything is working as expected.
Because clinically significant is not the same as radiologically significant.