fat sat not good- see subq fat
non displaced fx have less edema
Avnnesh
I think absence of bone marrow edema is not reliable in this case – this is acute avulsion fracture, without impression, also STIR is not very sensitive in older patients with osteopenia (link attached).
Quite common to have little oedema for Cx fractures. Cheers Bob
The lack of BME in cervical spine fracture is not rare and it is one of the reason not to perform MRI to detect these fractures.
One of the possible reason is time delay as you mentioned. Limited experience but 24-36 hours might be needed for BME to increase (but I never saw that in a C spine fracture).
I think that this observation is almost always at C2 and in elderly patients. These patients may sustain fracture even without any trauma (some people say that the weight of the head is sufficient) and therefore theree is limited vessel disruption (??).
like you mentioned this bone seems to be very dry.
I would never exclude the lack of a cervical spine fracture based on a normal MRI. I have had too many surprises….
regards, Bruno
72F, fall, 10 hours ago.
By tomography, there was still no bone resorption at the fracture site, compatible with an acute fracture in the axis (C2).
Fracture is well visible, but no bone edema on MRI.
Absence of edema on MR images generally indicates an old fracture.
We typically do not perform MRI in cases of acute trauma.
How long does it take for edema to appear?
Reduced vascularization in the axis?
Comments are welcome
