PMC4897033_01
62-year-old woman with variant of nutcracker fracture of the foot. Oblique, posteroanterior, and lateral views of the right foot (A, B, and C respectively) show the avulsion fracture of the navicular (wide arrows) and the compression fracture of the anterolateral aspect of the calcaneus (thin arrows).
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Radiographs of her right foot and ankle showed acute fractures of the navicular and calcaneus (Fig. 1).
62-year-old woman with variant of nutcracker fracture of the foot. Axial CT of the right foot (A, B) with sagittal (C) and 3-D (D) reformations. Navicular avulsion fracture (wide arrows) and depressed intra-articular fracture of the calcaneus at the calcaneocuboid joint (narrow arrows) are noted.
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Because the fracture pattern on radiographs suggested a high-energy injury to the midfoot and forefoot, a lower extremity CT was performed to detect any occult injuries and to further characterize the known fractures (Fig. 2).
62-year-old woman with variant of nutcracker fracture of the foot. Posteroanterior view of the right foot at 3 months following the injury. The compression deformity of the calcaneus persists (wide arrow), and the navicular fracture is fragmented and further distracted, consistent with non-union (narrow arrow).
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Follow-up radiographs obtained three months after the injury showed non-union of the navicular fracture with fragmentation, and persistent shortening of the lateral column (Fig. 3).