Abstract
Duplication of the calcaneus is a rarely observed radiographic finding that probably results from delayed coalescence of two primary calcaneal centers of ossification. We performed a review of 2,500 computerized cases of skeletal dysplasias and syndromes with bone involvement in the International Skeletal Dysplasia Registry, searching for those cases in which a duplicate calcaneus had been recorded. We found that it was a non-random feature of three skeletal dysplasias and groups comprising thanatophoric dysplasia and the chondrodysplasia punctata and short rib (polydactyly) groups. We conclude that duplication of the calcaneus should be considered a consistent feature of these entities and may reflect a more generalized developmental defect.
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Received: 7 June 2000 Accepted: 3 August 2000
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Cormier-Daire, V., Savarirayan, R., Unger, S. et al. “Duplicate calcaneus”: a rare developmental defect observed in several skeletal dysplasias. Pediatric Radiology 31, 38–42 (2001). https://doi.org/10.1007/s002470000354
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DOI: https://doi.org/10.1007/s002470000354