Cervical spondylosis and headaches.

The incidence of headaches in well documented cases of cervical spondylosis with neurological disability was reviewed. This was compared to that in a series of cases with a clinical diagnosis of tension headache in order to determine if there were any identifiable differences between the two types of headache. Fifty-nine cases of cervical spondylosis were reviewed. Five of these patients had headaches. Fifty patients with tension headaches were also reviewed. No differences were seen when location or other qualitative features of the headaches were compared between the two groups of patients. We conclude that the incidence of headache is low in cervical spondylosis and that the pattern of headache has no features that distinguish it from that of tension headache, suggesting that the pathogenesis is similar. We therefore suggest that the basis of headache in patients with cervical spondylosis is secondary muscle contraction.