What is Sesamoiditis?

Sesamoid are two very small bones that are found in the tendon, in the underside of the forefoot near the big toe. Sesamoids provide a smooth surface over which the tendons slide, thus increasing the ability of the tendons to transmit muscle forces. When they are injured they become inflamed, and that is sesamoiditis.

Causes

Sesamoid injuries can involve the bones, tendons, and/or surrounding tissue in the joint. They are often associated with overuse injuries or activities requiring increased pressure on the ball of the foot, such as running, basketball, football, golf, tennis, and ballet. In addition, people with high arches are at risk for developing sesamoid problems. Frequent wearing of high heeled shoes can also be a contributing factor.

Symptoms

• Pain under the big toe or on the ball of the foot
• Swelling and bruising
• Difficulty and pain in bending and straightening the toe
• Difficulty weight bearing or walking

Diagnosis

After a thorough history and examination of the foot your doctor may order x-rays as a part of workup.