Rheumatoid Arthritis Support Group
Rheumatoid arthritis is a chronic, inflammatory, multisystem, autoimmune disorder. It is a disabling and painful condition which can lead to substantial loss of mobility due to pain and joint destruction. The disease is also systemic in that it often also affects many extra-articular tissues throughout the body including the skin, blood vessels, heart, lungs, and...

https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4759726/
Modic types refer to vertebral endplate changes,
Type 1 consists of fibro vascular tissue,
type 2 is yellow fat, and
type 3 is sclerotic bone.
In Modic type 1 there is vascular development in the vertebral body, with findings of inflammation and edema, but no trabecular damage or marrow changes.
In Modic type 2 there are changes in bone marrow, with fatty replacement of formerly red, cellular marrow normally seen there.
Sounds to me like what it's saying is that your vascular tissue in a certain area has been replaced with fatty tissue?????? Again, I am not an expert.
Doesn't sound to me like this is at all related to RA, but is likely NOT autoimmune and probably classified in the degenerative skeletal conditions.
The following link is pretty descriptive:
https://www.epainassist.com/back-pain/lower-back-pain/modic-changes
patri
I have a number of autoimmune and non-autoimmune conditions related to the back. One that is very troublesome is AS [ankylosing spondylitis] which is suspected when people test positive for HLA-B27 [80% of all AS patients test positive to this haplotype]..
Back issues are the worst!
Please keep us posted and help us understand what you will learn about it.
Take care everybody