Congenital Hand Deformities

Congenital hand deformities are deformities of the hand or any part of hand that are present at birth. These deformities can be particularly disabling and should be treated as early as possibly as the hands play an important role in enabling children to interact.

Common congenital hand deformities include:

Constriction Ring Syndrome

An abnormality that occurs as a result of the development of a constricting band of tissue around a finger or arm which interrupts the flow of blood to the digit and prevents the normal growth of the tissues. This condition is often present along with other congenital abnormalities such as clubfoot, cleft lip, cleft palate, and other craniofacial anomalies.

Duplication (Polydactyly)

Polydactyly is an abnormality that results in the development of an extra digit, most often a small finger near the pinky finger.

Overgrowth (Macrodactyly)

Macrodactyly is a rare condition which causes excessive growth of a digit (most often the index finger) resulting an abnormally large digit.

Radial & Ulnar Club Hand Deformity

A tissue deformity that affects hands and results in an underdeveloped ulnar bone, underdeveloped muscles, and a short or completely absent thumb.


A most common deformity in which two or more fingers are fused together. Simple syndactyly involves fusion of only the soft tissues of the fingers while complex syndactyly involves fusion of the soft tissues and bones of the fingers.

Undergrowth (Brachydactyly)

A condition that results in a hand’s fingers and/or thumbs being completely absent or appearing to be rather small due to missing muscles and underdeveloped or missing bones.