Angular hypertrophied epiphysis of the thumb distal phalanx in radial polydactyly

Abstract

In a series of 271 consecutive duplicated thumbs, an angular, hypertrophied epiphysis was detected in 13 thumbs. We propose a revised version of the radial polydactyly classification that includes this pattern as a separate type from triphalangeal thumb.

Keywords

Abnormal hypertrophied epiphysis angular type radial polydactyly

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