Os subtibiale mistaken for a recent fracture

Abstract

There are a large number of accessory bones in the foot and ankle. They may be mistaken for fractures if their characteristic location, and usually smooth outline, is not recognised.1 The os subtibiale is an uncommon accessory bone that occurs immediately distal to the medial malleolus. I report an unusually large example of this bone that was mistaken for a fracture. © 1986, British Medical Journal Publishing Group. All rights reserved.