The readings from your MRI are showing what I believe is an arthritic process. The doctor who sent you for the MRI should be able to review these findings with you. These findings can and do exist independant of RSD. Sudeck's atophy is the term used for bone changes noted with RSD (which is now known as Complex Regional Pain Syndrome) is classically referred to as "spotty osteoporosis."
Talk to your doctor.