Management of dorsal lip avulsion fracture of Navicular bone

Navicular injuries are not so uncommon nowadays with the advent of increased sports and physical training. There are three main types of fracture to navicular bone namely cortical avulsions, fractures of the tuberosity and fractures of the body. Stress fractures are occasionally seen in athletes. Most common ones are the cortical avulsion fractures which are the result of a twisting injury rupturing the strong talonavicular capsule and the most anterior fibres of the deltoid ligament with a bone fragment being avulsed. Conservativetreatment consists of a short leg walking cast for 6 weeks. If the fragment includes more than 20% of the articular surface, or if there is significant instability seen on a stress-x-ray, it should be stabilized with screws. In this case report we illustrate the management of one such cortical avulsion of the navicular managed with percutaneous screw fixation with excellent outcome according to Karlsson and Peterson scoring system for ankle function.