IMAGING AND BACK PAIN A 2014 study (Brinjikji et al) looked at MRI studies of asymptomatic individuals. That is, people without back pain. What they found was this: Prevalence of Disk Degeneration: *37% in 20 year olds *80% in 50 year olds *96% in 80 year olds Prevalence of Disc Bulges: *30% in 20 year […]