Polydactyly sentence example

polydactyly
  • Polydactyly and syndactyly are congenital malformations of the fingers and/or toes.
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  • Polydactyly is the presence of extra fingers or toes, and syndactyly is the fusing together or webbing of two or more fingers or toes.
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  • Polydactyly and syndactyly can vary in the degree of severity.
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  • Polydactyly may range from small skin tags on the side of the hands to fully formed extra fingers with bone, blood vessels, and muscle tissue.
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  • Polydactyly is classified as postaxial if the extra digit is located beside the little finger or preaxial if the extra digit is located near the thumb.
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  • Syndactyly and polydactyly may occur simultaneously when extra digits are fused in a condition known as polysyndactyly.
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  • Polydactyly and syndactyly are usually isolated conditions, meaning the child will have no other birth defects; however, both are also found in many complex and sometimes lethal groups of anomalies or syndromes.
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  • Postaxial polydactyly, or an extra pinky finger, is the second most common malformation of the hand, occurring in approximately one in 3,000 births.
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  • Polydactyly of the toes, especially of the little toe, is also a common malformation, occurring in approximately two in 1,000 births.
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  • Thirty percent of all children with polydactyly have family members with some type of polydactyly, and it is more common in African Americans.
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  • Polydactyly and syndactyly are conditions that occur in the developing fetus.
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  • Both polydactyly and syndactyly can be caused by the presence of an autosomal dominant trait.
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  • Because the gene is dominant, when one parent has the gene, each of his or her children has a 50 percent chance of having polydactyly or syndactyly.
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  • The primary symptom of polydactyly is the presence of extra digits on the hands or feet.
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  • Polydactyly rarely causes any difficulties for the child.
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  • Some children with polydactyly will need radiographs or x rays to determine if there is bone present in the extra digit.
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  • When polydactyly is more severe and involves digits with bone, a pediatric orthopedic surgeon will perform the repair.
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  • In children with syndactyly, the surgeon must determine if the fusion involves muscle tissue and blood vessels, and in children with severe polydactyly of the fingers, a surgeon specializing in hands may evaluate the child as well.
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  • For children with minor cases of polydactyly, the extra finger or toe may be tied at its base to restrict blood flow into it.
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  • For children with isolated polydactyly and syndactyly, the prognosis is excellent.
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  • There is no known prevention for polydactyly and syndactyly.
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  • Children with more severe polydactyly and syndactyly will have surgery to correct the malformation.
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  • Polydactyly and syndactyly correction surgery is usually performed when the child is between the ages of one and two years.
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