Treatments for Polydactyly of Fingers in Children

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Contact the Hand and Orthopedic Upper Extremity Program

  • 1-617-355-6021
  • International: +01-617-355-5209
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At Boston Children's Hospital, skilled experts in our Orthopedic Center's Hand and Orthopedic Upper Extremity Program and our Plastic Surgery Department's Hand and Microsurgery Reconstructive Program provide comprehensive care—including evaluation, diagnosis, consultation, surgery, non-surgical therapies and follow-up care.


Our hand and upper extremity experts and plastics experts usually treat children with polydactyly by surgically removing the extra finger—typically, when the child is between 1 and 2 years old—young enough that he won't miss developmental milestones such as grasping (prehension), but late enough that he can tolerate anesthesia and surgery well.

•   Removing an extra little finger (ulnar polydactyly) can be fairly simple if the extra finger is attached by a narrow
    “stalk” or “nub” of soft tissue. The extra finger can be removed with a minor procedure or even by tying off (ligating)
    the nub in the nursery.

•   Removing an extra thumb (radial polydactyly, thumb duplication) can be complex. The thumb is of primary
    importance in hand function, and radial polydactyly can negatively impact thumb position (angle), shape and
    function. Removing the extra thumb is sometimes not enough—the procedure can also require remodeling of the
    remaining thumb, with care and attention to soft tissues, tendons, joints and ligaments. And even after treatment,
    the reconstructed thumb may be smaller than normal.
    Read more about treatment and care for thumb duplication.

•   Removing an extra central finger (central polydactyly) is typically complex, involving significant reconstruction of
    the hand, and also taking care with soft tissues, tendons, joints and ligaments. Sometimes more than one surgery
    is needed. 

Complications after surgery

Complications after surgery are common but often minor. Most remaining cosmetic or functional deformities can be addressed in later corrective surgery. 

Caring for your child after surgery

If the surgery to remove the extra digit is fairly complex, it can also involve your child's bone, ligament and tendon. If that's the case, your child may need to wear a cast for a few weeks. Your doctor may recommend occupational or physical therapy to help reduce scarring, stiffness and swelling and improve function.

Long-term outlook

Most of our young patients recover full hand function and an improved appearance of their hand. If needed, your child's team will work with you and your child to learn home exercises that are important to his recovery. He may need to wear a cast or splint in some circumstances. It is possible that in a severe case, your child may need additional reconstructive surgery(ies) to recover full function and improve the hand's appearance.

Your child may need to be followed for a number of months or years to:

•   ensure that the healing has gone well
•   check that function has returned to your child's hand
•   determine whether additional surgery is needed to improve the function or appearance of the hand as your
    child grows

Coping and support

At Boston Children's Hospital, we understand that a hospital visit can be difficult, and sometimes overwhelming. So, we offer many amenities to make your child's—and your own—hospital experience as pleasant as possible. Visit The Center for Families for all you need to know about:

•   getting to Boston Children's
•   accommodations
•   navigating the hospital experience
•   resources that are available for your family

In particular, we understand that you may have a lot of questions when your child is diagnosed with polydactyly. Will this affect my child long term? Will he be able to play sports and do regular activities? Children's can connect you with extensive resources to help you and your family through this stressful time, including:

•   Patient education: From doctor's appointments to physical therapy and recovery, our nurses and physical
    therapists will be on hand to walk you through your child's treatment and help answer any questions you may
    have—Why will my child need surgery? Are there non-surgical options? How long will his recovery take? How
    should we manage home exercises and physical therapy?
We'll help you coordinate and continue the care and
    support your child received while at Children's.
•   Parent-to-parent: Want to talk with someone whose child has been treated for polydactyly? We can often put you in
    touch with other families who've been through the same process that you and your child are facing, and who will
    share their experiences.
•   Faith-based support: If you're in need of spiritual support, we'll connect you with the Children's chaplaincy. Our
    program includes nearly a dozen clergy— representing Protestant, Jewish, Muslim, Roman Catholic and other faith
    traditions—who will listen to you, pray with you and help you observe your own faith practices during your hospital
•   Social work: Our social workers and mental health clinicians have helped many families in your situation. We can
    offer counseling and assistance with issues such as coping with your child's diagnosis, stresses relating to coping
    with illness and dealing with financial difficulties.

We are grateful to have been ranked #1 on U.S. News & World Report's list of the best children's hospitals in the nation for the third year in a row, an honor we could not have achieved without the patients and families who inspire us to do our very best for them. Thanks to you, Boston Children's is a place where we can write the greatest children's stories ever told.”
- Sandra L. Fenwick, President and CEO

Boston Children's Hospital 300 Longwood Avenue, Boston, MA 02115 617-355-6000 | 800-355-7944