[Spondylolysis and spondylolisthesis in the young]

Authors think the early recognition of the spondylolysis and spondylolisthesis in young age important, as for the further life of the patients (sport, military service) adequate councels have to be given. In mild or more serious lumbago in adolescents, appearing mainly on load, other developmental anomalies, easy to be recognized, call attention to the presence of spondylolysis and spondylolisthesis. Considering the factors of risk the development of the disease and its tendency may be followed on Roentgenogram of exact projections.