This article is about a condition that evolves as an extra bone in the foot. Up to 2.5% of individuals are born with an extra bone right over the navicular bone in the foot in the middle of the arch.

Most that have it never have pain. If they get pain, we call it: “Accessory navicular bone syndrome.” Accessary navicular bone syndrome affects overpronators because of irritation in this area.

Accessory navicular bone disorders represent a significant yet frequently under‐diagnosed anomaly in the paediatric foot. The accessory navicular is an extra ossicle located adjacent to the ...

Mueller-Weiss syndrome is a rare disorder that affects the navicular bone in the foot. It’s mostly found in people ages 40-60, and it’s much more common in women. It’s a progressive disease ...

A triple-phase bone scan is another highly sensitive test used to diagnose this condition. Accessory navicular syndrome can be treated using surgical and nonsurgical methods. Treatment options ...