A case of accessory talus is described in which a large ossicle on the medial aspect of the talus had formed an articulation with the distal tibial epiphysis and had produced a fixed equinus deformity of the ankle. We propose that this ossicle, in association with a previously excised accessory toe at the level of the base of the first metatarsal, represents a partial duplication of the medial column of the foot.
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