Hi, I had ACDF C4-C7 and within a year post-op I started experiencing adjacent segmented disease (ASD). After 10 years of repeated temporary therapies - Chiro, PT, Acupunture, Injections, etc., had posterior C2-T2 cervical fusion. I am now 6 weeks post-op and still experiencing radicular pain in upper extremities (I dealt with this pain for nearly 2 years and was told it may be permanent). I am praying all will resolve at 12 weeks post-op! You may want to discuss ASD with your surgeon.