Pelletier J P, Kanat I O
Department of Podiatric Surgery, Kern Hospital, Warren, Michigan.
J Foot Surg. 1990 May-Jun;29(3):268-71.
Previously reported avulsion fractures of the calcaneus have been confined to the attachment of the tendo achillis, bifurcate ligament, extensor digitorum brevis muscle, or the plantar fascia. A case report of a previously undescribed avulsion fracture of the calcaneus due to the abductor hallucis muscle is presented. The mechanism of injury, forced dorsiflexion of the forefoot, is described. A diagnostic and treatment regimen is provided. With appropriate identification of the injury, this unusual calcaneal fracture can be adequately managed.