There is good evidence from the medical literature that type I syndactyly, the most common form of the nonsyndromic syndactylies, is clinically heterogeneous. We therefore propose to group the ...

Syndactyly, the congenital fusion of digits, is among the most common hand anomalies and presents in simple or complex forms, with complete or incomplete involvement of soft tissues and bones.

Seeing your baby’s fingers or toes joined together or with an extra digit can feel unsettling at first. Syndactyly and polydactyly are conditions some babies are born with, and while they sound ...