[Nomenclature of angles in the lumbo-sacral region (author's transl)]

Lack of an universally accepted nomenclature of lumbo-sacral angles often leads to misunderstanding. As a basis for a future agreed nomenclature the descriptions of these angles are put in order, wherever possible without introducing new names. Only in one instance - for the differentiation between an anterior and posterior lumbo-sacral angle - was a new name essential. The series of angles also contains a point - the promontory - and a distance - the height of the promontory - which is the second new name.