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Breech deformation complex in neonates.

Y Y Hsieh1, F J Tsai, C C Lin

  • 1Department of Obstetrics and Gynecology, of Pediatrics and Medical Genetics, China Medical College Hospital, No. 2 Yuh-Der Road, Taichung, Taiwan.

The Journal of Reproductive Medicine
|December 29, 2000
PubMed
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Breech presentation in newborns significantly increases the risk of developing breech deformation complex, including specific facial anomalies, torticollis, and congenital hip dislocation. These conditions are not linked to the delivery method itself.

Area of Science:

  • Neonatal Health
  • Pediatric Orthopedics
  • Clinical Genetics

Background:

  • Minor anomalies are common in newborns.
  • Breech presentation is a known risk factor for certain neonatal conditions.

Purpose of the Study:

  • To investigate the association between minor anomalies and breech presentation.
  • To determine the prevalence of breech deformation complex, torticollis, and congenital hip dislocation (CDH) in breech-presenting newborns.

Main Methods:

  • A cohort of 3,345 newborns with singleton, term delivery was analyzed.
  • Infants were categorized into vertex presentation (n=3,107) and breech presentation (n=224) groups.
  • A comprehensive checklist of 67 major and minor anomalies was used for examination.

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Main Results:

  • 81.3% of breech-presenting infants had minor anomalies compared to 42.3% of vertex-presenting infants (P < .005).
  • Specific anomalies like frontal bossing (51%), prominent occiput (42%), and low-set ears (20.5%) were significantly higher in the breech group.
  • Breech presentation was strongly associated with torticollis (1.78% vs. 0.3%) and congenital hip dislocation (0.9% vs. 0.06%) (P < .005).

Conclusions:

  • Breech-presenting newborns exhibit a substantially higher incidence of breech deformation complex, torticollis, and CDH.
  • The study identified key features of breech deformation complex: frontal bossing, prominent occiput, upward slant, and low-set ears.
  • The observed prevalence of these conditions was independent of the delivery method.