Accessory Anterolateral Talar Facet Syndrome After Treatment of Neglected Fracture of the Lateral Process of the Talus: A Case Report.

Fracture of the lateral process of the talus has often been missed or confused with lateral ankle sprain, and this can lead to long-term untreated cases of nonunion, malunion, and subtalar joint osteoarthritis. In a review of the published data, accessory anterolateral talar facet syndrome was not found after treatment of nonunion of the lateral process of the talus fracture. This report presents the case of a 40-year-old male snowboard instructor who suffered from a neglected fracture of the lateral process of the talus and was treated with open reduction using an iliac autogenous bone graft. Subsequently, partial resection of the anterior aspect of the process was required to treat the impingement syndrome that developed secondary to the united but enlarged lateral process. The patient resumed his activities a year after the second operation. We describe the consequences of misdiagnosis of the lateral process of the talus and its management.

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