Our decision to dedicate several years to the writing of this Atlas was based on the professional acknowledgement of negative surgical results due to incorrect or incomplete approaches to the bones or joints requiring treatment. We are convinced that in order to obtain the best possible anatomic and functional results in surgery of the locomotor apparatus, it is necessary to obey several rules of behaviour con stituting the basis for correct surgical execution: a) to respect the anatomy of the muscular and neural formations; b) to safeguard the vascularization of these anatomical elements and...