Post axial polydactyly

Case contributed by Mohammadtaghi Niknejad


Hand deformity.

Patient Data

Age: 13 months
Gender: Female

There is an additional digit at the MTP joint towards the little toe.

Case Discussion

Radiographic feature of a post-axial polydactyly type A according to Temtamy and McKusick classification.

Post-axial polydactyly refers to polydactyly where the additional digit is lateral to the 5th (little) toe.
Post-axial polydactyly is more common than preaxial polydactyly.
Post-axial polydactyly can be associated with trisomy 13Bardet-Biedl syndromeMeckel Gruber syndromeMcKusick-Kaufman syndrome and some other abnormalities.

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