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Related Experiment Videos

Postaxial type-B polydactyly. Prevalence and treatment

B T Watson1, W L Hennrikus

  • 1Department of Orthopaedic Surgery and Clinical Investigation, Naval Hospital, San Diego, California 92134-5000, USA.

The Journal of Bone and Joint Surgery. American Volume
|January 1, 1997
PubMed
Summary

Postaxial type-B polydactyly affects 1 in 531 newborns, with higher prevalence in Black infants. Simple suture ligation in newborns effectively treated most cases with satisfactory cosmetic outcomes.

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Area of Science:

  • Pediatric Surgery
  • Clinical Genetics
  • Public Health Screening

Background:

  • Postaxial type-B polydactyly is a common congenital anomaly of the hand.
  • Understanding its prevalence and treatment outcomes is crucial for clinical management.

Purpose of the Study:

  • To determine the prevalence of postaxial type-B polydactyly in newborns.
  • To evaluate the efficacy and cosmetic results of newborn nursery treatment via suture ligation.

Main Methods:

  • Prospective screening of 11,161 newborns.
  • Treatment of polydactyly using suture ligation at the pedicle base.
  • Follow-up examination of treated infants.

Main Results:

  • Prevalence identified as 1 in 531 live births, with higher rates in Black infants (1 in 143).

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  • 86% of cases had a family history.
  • Suture ligation was effective, with 43% showing minor residual bumps at follow-up, and high parental satisfaction.

    • Conclusions:

    • Postaxial type-B polydactyly is relatively common, particularly in certain racial groups.
    • Newborn suture ligation is a safe and effective treatment with good cosmetic results.
    • Family history is a significant factor in the occurrence of this anomaly.