Thanks for posting this query in HCM
I have noted your complaints
Please note that, if the bove described data are MRI
findings you donot have to worry.
Based upon this findings it is difficult to tell you that you need spinal fusion
The most important thing is to note the clinical symptoms and then the clinical/neurological examination findings. I am very sorry but you have not provided us the exact clinical symptoms. If you have pain and symptoms are suggestive of nerve root compression
which has not improved with conservative treatment, then only you should go for operative procedures . This may/may not involve spinal fusion. So you shoud not worry at all.
Please get evaluated initially by a neurophysician who will assess you and will let you know if surgery is mandatory in your case. If surgery is required you may proceed to see a neurosurgeon.
Hope this helps