Sesamoiditis

Inflammation or irritation of the tendon and surrounding structures around a small bone (the sesamoid) below the metatarsal head where it adjoins the big toe (first metatarsal head).

The cause of sesamoiditis is usually repeated injury. Sesamoiditis is particularly common among dancers, joggers, and those who wear high heels. The area may be swollen and is painful when walking and when pressure is applied to it. The doctor makes the diagnosis by examining the foot and confirms the diagnosis by x-rays to exclude a fracture of the sesamoid bone.

Treatment consists of placing a special pad ("dancer's pad") inside the shoe to reduce pressure on the area. A nonsteroidal anti-inflammatory drug (NSAID) taken by mouth and injections of corticosteroids and local anesthetic into the affected area can be helpful.