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Doctors do not know why finger/thumb hypoplasia or aplasia occurs, but they do know that it is often associated with specific syndromes and other hand differences.
Finger/thumb hypoplasia or aplasia is diagnosed by examination, usually just after birth. Often, x-rays will be ordered to look at the bones of the thumbs/fingers. The baby’s doctor may order other tests to check for associated syndromes.
Treatment of finger/thumb hypoplasia or aplasia varies and may include surgery.
It is important to take into account the child’s overall health, medical history and whether surgery will improve how the hand works.
Infants and children born with these hand differences learn to use their hands to pinch and grasp using the structures of the hand they do have. Some activities are still harder for these children to perform.
If surgery is recommended:
Below is a series of illustrations showing pollicization.
Our Hand and Upper Extremity Program team at Children’s Colorado provides a comprehensive, multidisciplinary approach to the care of your child. This means you have access to leading specialists from multiple departments who work together to treat your child.
Your child’s care team includes pediatric experts from orthopedic surgery, physical medicine, rehabilitation, occupational therapy and nursing.