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A morpho-etiological description of congenital limb anomalies

S M Tayel1, M M Fawzia, Niran A Al-Naqeeb

  • 1Genetics Unit, Anatomy Department, Alexandria Faculty of Medicine, Alexandria, Egypt. tayelshaw@yahoo.com

Annals of Saudi Medicine
|August 27, 2005
PubMed

Insights

Congenital limb anomalies are common birth defects. This study identifies causes, including genetic and environmental factors, aiding in prevention through genetic counseling and prenatal diagnosis.

Area of Science:

  • Medical Genetics
  • Developmental Biology
  • Pediatric Orthopedics

Background:

  • Congenital limb anomalies are frequent birth defects, second only to congenital heart disease.
  • Over 50 classifications exist, highlighting the complexity of limb malformations.
  • A morpho-etiological approach is presented to classify common limb anomalies.

Purpose of the Study:

  • To summarize common congenital limb anomalies.
  • To classify these anomalies based on morphology and etiology.
  • To establish a framework for understanding limb malformation causes.

Main Methods:

  • Retrospective study of 70 newborns with limb anomalies.
  • Ascertainment through clinical examination, chromosomal analysis, and skeletal surveys.
  • Inclusion of various etiological investigations.

Main Results:

  • Fetal causes accounted for 55.8%, including chromosomal aberrations (12.9%) and single gene disorders (42.9%).
  • Environmental factors (15.7%) included amniotic band disruption and vascular disruptions.
  • Sporadic syndromes of unknown etiology comprised 28.5% of cases.

Conclusions:

  • The morpho-etiological work-up is effective for identifying causes of limb anomalies.
  • Understanding etiology is crucial for anomaly prevention.
  • Genetic counseling, recurrence risk estimation, and prenatal diagnosis are key preventive strategies.
Abstract

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