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Os Intermetatarseum and Polymetatarsia Without Polydactyly: A Case Report

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Nontraumatic bony abnormalities of the foot occur at different rates, according to the literature. However, it is uncommon to see rare variations presenting together in one patient. This article discusses two less common anomalies: fused os intermetatarseum and polymetatarsia without polydactyly. Etiology, symptomology, diagnosis, and treatment are reviewed, in addition to the relationship of the two conditions to each other. We then discuss a case where both anomalies are present at the same time in a 17-year-old patient.

Rothman Orthopedic Institute, Limerick, PA.

Corresponding author: Michelle Kavin, PA, Rothman Orthopedic Institute, Urgent Care Clinic, 400 Enterprise Dr, Limerick, PA 19468. (E-mail: michelle.kavin@rothmanortho.com)