Accessory navicular bone- A radiological finding and discussion of its clinical presentation.

Abstract

The accessory navicular is located on the posteromedial aspect of the foot, in close proximity with the navicular bone. This radiographic variant has been described in the anatomic and orthopaedic literatures with a variation of names such as ostibiale externum, osnaviculare secundarium, osnaviculare accessorium, osscaphoidea accessoria and pre-hallux. We report here two cases to better the understanding of this condition