Anatomy:Sesamoid bones are located in several places in the foot, embedded in tendons and ligaments. The sesamoid bones protect the tendons and ligaments against over load. There are almost always two sesamoid bones embedded in the flexing tendon of the big toe (musculus flexor hallucis brevis) under the metatarsophalangeal joint of the big toe.
THE FOOT FROM BELOW
Cause: Fracture of the seamoid bones can either occur acutely after sudden forceful strain/load, or in the form of a stress fracture subsequent to repeated, monotonous activity (running).
Symptoms: Pain just below the metatarsophalangeal joint of the big toe which is aggravated when the big toe is flexed backwards.
Examination: Clinical examination is usually necessary in order to make the diagnosis. The fracture can often be seen on x-rays, MRI examination (article), or ultrasound scanning.
Treatment: Treatment of a fracture of the sesamoid bone comprises relief, possibly in the form of shoes with a fixed sole.
Rehabilitation: Load or strain within the pain threshold is allowed. Shoes with stiff soles are recommended. The guidelines under rehabilitation, generalshould be followed.
Complications: It is unfortunately often seen that a fracture of the sesamoid bone does not heal, and frequently results in prolonged discomfort. If there is not steady improvement in the condition, consideration must though be given as to whether the diagnosis is correct or whether complications have arisen: