Craniocervical malformations.

This short survey summarises the important craniocervical dysplasias, the malformations accompanying primary neuroectodermal and secondary lesions of the neural structures and their coverings, and complex malformations. The interpretation, classification and the identification of the static and/or dynamic biomechanical pathogenesis is a prerequisite for the correct diagnosis and for assessing the indications for and the choice of any operation to be adopted.