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Hand malformations

Hand malformations

Polydactyly (extra fingers)

An extra finger is usually a small piece of soft tissue that can be removed. Sometimes the finger will contain bones but not joints. Rarely is the extra finger a complete, fully functioning digit.

Polydactyly

Syndactyly (webbed fingers)

Syndactyly is a condition where a child’s fingers or toes do not fully separate during development. The spaces between the connected fingers and toes may be webbed or they may be fully attached and sharing tendons, nerves, blood vessels and bone.

Syndactyly

Abnormal thumbs or trigger thumb 

Trigger thumb occurs when there is a bump on the tendon that moves the joint near the tip of the thumb, causing the thumb to jump or “trigger” when it is used. In some cases the thumb may be locked in a bent position. Trigger thumb is caused by a tendon that is too thick and therefore unable to move normally, causing the thumb to lock.

Trigger thumb

Surgical intervention is usually recommended to correct these malformations.