Thumb Duplicationenparentshttps://kidshealth.org/EN/images/headers/Design_928_Thumb_Duplication_enHD_1.jpgBabies with thumb duplication (or thumb polydactyly) are born with an extra thumb on one or both hands. Most will have surgery to fix the problem.Thumb Duplication, split thumb, webbed fingers, joined thumbs, syndactyly, webbed, joined fingers, webbed fingers, webbed toes, joined toes, digits, conjoined, polydactyly, thumb polydactyly, extra thumb, two thumbs, Symbrachydactyly, Thumb Duplication, Thumb Hypoplasia, Radial Club Hand, ortho, orthopedist, orthopedic, orthopaedic, ortho surgery, extremities, upper extremities, hand surgery, foot surgery, Ulnar Club Hand, clubfoot, club foot, too many fingers, not enough fingers, conjoined fingers, conjoined toes, hand disorders, orthopedic surgeons, conjoined digits06/06/201810/31/201809/02/2019Jennifer M. Ty, MD06/01/2018f0a9cba2-ac76-470e-9d43-4345a6d57493https://kidshealth.org/ws/RadyChildrens/en/parents/thumb-duplication.html/<h3>What Is Thumb Duplication?</h3> <p>Babies with thumb duplication (or thumb <a href="https://kidshealth.org/ws/RadyChildrens/en/parents/polydactyly.html/">polydactyly</a>) are born with an extra thumb on one or both hands. The two thumbs on one hand can be joined or webbed together.</p> <p>A thumb duplication is more of a split thumb rather than an &quot;extra thumb.&quot; When it affects one hand, both thumbs on that hand are usually smaller and less developed than the thumb on the hand that is not affected.</p> <h3>What Causes Thumb Duplication?</h3> <p>Thumb duplication happens before a baby is born. When a baby's hands are first forming, they are shaped like mittens. Then the fingers split. An extra split can result in thumb duplication. The reason this happens is not known. It is not caused by anything a mother did or did not do while pregnant.</p> <h3>Who Gets Thumb Duplication?</h3> <p>Any baby can be born with thumb duplication. It sometimes runs in families. Most babies who have thumb duplication do not have other health problems. But sometimes, thumb duplication happens as part of a <a href="https://kidshealth.org/ws/RadyChildrens/en/parents/about-genetics.html/">genetic</a> syndrome .</p> <h3>How Is Thumb Duplication Diagnosed?</h3> <p>A prenatal <a href="https://kidshealth.org/ws/RadyChildrens/en/parents/prenatal-ultrasound.html/">ultrasound</a> might show a thumb duplication. Otherwise, doctors diagnose it when a baby is born.</p> <p><a href="https://kidshealth.org/ws/RadyChildrens/en/parents/xray-hand.html/">X-rays</a> of the bones in the thumbs and hands will help the surgeon decide on the best kind of treatment.</p> <h3>How Is Thumb Duplication Treated?</h3> <p>Most babies with thumb duplication get surgery. The surgery removes the extra thumb and, if needed, rebuilds the remaining thumb. The hand is usually put in a <a href="https://kidshealth.org/ws/RadyChildrens/en/parents/casts.html/">cast</a> for a few weeks after surgery.</p> <p><a href="https://kidshealth.org/ws/RadyChildrens/en/parents/occupational-therapy.html/">Occupational therapy (OT)</a> and home exercises can help if a child needs help to learn to use the thumb.</p> <h3>Looking Ahead</h3> <p>After recovered from surgery, your child can do all of the usual things that kids do. Offer your support as your child learns how to use his or her hands well.</p>Duplicación del pulgarLos bebés con duplicación del pulgar (o polidactilia del pulgar) nacen con un pulgar de más en una o ambas manos. Los dos pulgares de una mano pueden estar fusionados entre sí o unidos por una membrana.https://kidshealth.org/ws/RadyChildrens/es/parents/thumb-duplication-esp.html/40ce1d7d-4dc2-4df0-9544-94e4ea4d832f
Bones, Muscles, and JointsWithout bones, muscles, and joints, we couldn't stand, walk, run, or even sit. The musculoskeletal system supports our bodies, protects our organs from injury, and enables movement.https://kidshealth.org/ws/RadyChildrens/en/parents/bones-muscles-joints.html/53199934-b6d8-4854-8362-8b1dfc45c3f6
Occupational TherapyOccupational therapy can help improve kids' cognitive, physical, and motor skills and build their self-esteem and sense of accomplishment.https://kidshealth.org/ws/RadyChildrens/en/parents/occupational-therapy.html/e6873992-af60-4bab-82d9-3bd1fe9ad5a3
PolydactylyPolydactyly is when a baby is born with an extra finger on the hand or an extra toe on the foot. It can be on one or both hands or feet.https://kidshealth.org/ws/RadyChildrens/en/parents/polydactyly.html/684055dc-071c-4973-8ce6-9281a43185ae
Radial DysplasiaBabies with radial dysplasia (also called radial club hand) are born with a short or missing radial bone. This makes the wrist turn in.https://kidshealth.org/ws/RadyChildrens/en/parents/radial-dysplasia.html/6fa65f17-f1df-47fb-8f7b-35cb8efeccb5
SymbrachydactylyBabies with symbrachydactyly are born with short often webbed fingers. Some might be missing fingers.https://kidshealth.org/ws/RadyChildrens/en/parents/symbrachydactyly.html/afe1b0ce-964d-477a-a395-e1f81141358c
SyndactylySyndactyly is when a baby is born with two or more fingers or toes joined or "webbed" together. https://kidshealth.org/ws/RadyChildrens/en/parents/syndactyly.html/5edd8317-51f6-443c-b25c-5ec74bd7218b
Thumb HypoplasiaBabies with thumb hypoplasia are born with a thumb that is smaller than normal, or with the thumb missing completely.https://kidshealth.org/ws/RadyChildrens/en/parents/thumb-hypoplasia.html/c8fbf7e7-948b-4209-b1ed-e038838968e2
Ulnar DysplasiaBabies with ulnar dysplasia (also called ulnar club hand) are born with a short or missing ulnar bone. This makes the wrist turn out.https://kidshealth.org/ws/RadyChildrens/en/parents/ulnar-dysplasia.html/99df5db6-d7ab-419d-bae9-56fd26c29bcd
X-Ray Exam: FingerDoctors may order a finger X-ray to find the cause of symptoms such as pain, tenderness, or swelling, or to detect broken bones or dislocated joints.https://kidshealth.org/ws/RadyChildrens/en/parents/xray-finger.html/3a43d22f-4cd4-4a9e-b5b8-ca7c9eba5fd6
X-Ray Exam: HandA hand X-ray can help find the cause of pain, tenderness, swelling, and deformity. It also can detect broken bones or dislocated joints.https://kidshealth.org/ws/RadyChildrens/en/parents/xray-hand.html/64b6be7e-e187-4bd6-a004-a72afbdf6296
kh:age-allAgesOrAgeAgnostickh:age-toddlerOneToThreekh:clinicalDesignation-generalSurgerykh:genre-articlekh:primaryClinicalDesignation-orthopedicsNonSportsMedBones & Muscleshttps://kidshealth.org/ws/RadyChildrens/en/parents/medical/bones/309954d5-03dd-446c-9d39-3e66eeb99f97