An unusual case of a fibular sesamoid phalangeal ligament tear due to chronic trauma.

Injuries involving the first metatarsophalangeal joint and its associated structures are common, especially in athletes. However, injuries to the hallucal sesamoid complex comprised only 3% of all podiatric sports medicine injuries reported by Agosta.

This case study reports a female ballet dancer with an isolated fibular sesamoid retraction injury that presented with a history of chronic micro trauma secondary to overuse. When consulting epidemiological studies of forefoot injuries involving the hallucal sesamoid complex, we were unable to find a single instance of an isolated retraction of the fibular sesamoid due to chronic use, demonstrating the unusual nature of this case.