Comparison of the mobility and the presence of pathological signs as osteophytosis, discopathia and olisthesis between two populations, one with traumatic history (traffic accident AIS=1) and one without traumatic antecedents. A radiological method is used, The influence of age is significant. The influence of sex upon mobility is clear. The used criteria made no significant difference between traumatic (AIS=1) and non traumatic population.