Presentation
Congenital bilateral duplication of the great toe.
Patient Data
Bilateral preaxial polysyndactyly (duplication and webbing of the hallux).
Both feet present well-developed 1st digits articulating with a single metatarsal (type A polydactyly).
The digits are connected only by soft tissue, there is no bony connection (simple syndactyly).
Bilateral preaxial polysyndactyly.
Case Discussion
Polysyndactyly refers to the combination of polydactyly (digit duplication) and syndactyly (webbing of the digits).
Polydactyly is the most common congenital toe deformity, with postaxial duplication (5th toe) being more frequent than preaxial duplication (great toe).
About half of the cases of polydactyly are bilateral, but not necessarily symmetrical.
Both polydactyly and syndactyly are related to a strong familial trend, with positive family history being common. In the present case, there was known family history of syndactyly, but not of polydactyly.
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