Cervical spine degeneration in fighter pilots and controls: A 5-yr follow-up study

At 5 yr after MRI of the cervical spine, for evaluation concerning degenera tive lesions, follow-up MRI was performed on asymptomatic experienced milit ary high performance aircraft pilots (mean age 47 yr; mean accumulated flyi ng time 3,100 h) and on age-matched controls without military flying experi ence. Young military high performance aircraft pilots (mean age 28 yr, mean accumulated flying time 915 h) were also re-examined. Compared with baseli ne MRI 5 yr earlier, there was significant increase in disk protrusions in all groups, in osteophytes in controls, and in foraminal stenoses in experi enced pilots, and a significant reduction in disk signal intensity in young pilots. The difference between experienced pilots and controls was markedl y reduced compared with that at baseline MRI. Thus, military high performan ce aircraft pilots seem to be at increased risk of premature development of degenerative lesions of the same type as are seen in an aging population. With increasing age the difference between pilots and controls diminishes.