Evaluation of simple excision in the treatment of symptomatic accessory navicular associated with flat feet.

The results of 17 patients who had been treated by simple excision, for symptomatic accessory navicular were reviewed 2 to 5 years postoperatively. Although all patients had good or excellent results by subjective criteria, careful examination revealed difficulty in performing the "single-heel rise test" in 8 patients who also had preexisting flat feet. These results suggest the necessity for an objective evaluation system, as well as a different treatment approach, for the association of accessory navicular and flat foot.