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Postnatal Changes in Humerus Cortical Bone Thickness Reflect the Development of Metabolic Bone Disease in Preterm

Shuko Tokuriki1, Aiko Igarashi1, Takashi Okuno1

  • 1Department of Pediatrics, Faculty of Medical Sciences, University of Fukui, 23-3 Shimoaizuki, Matsuoka, Eiheiji-cho, Yoshida-gun, Fukui 9101193, Japan.

Disease Markers
|May 20, 2016
PubMed

Insights

Cortical bone thickness in preterm infants

Area of Science:

  • Neonatology
  • Pediatric Radiology
  • Metabolic Bone Disease

Background:

  • Preterm infants are at high risk for metabolic bone disease.
  • Assessing bone health in extremely premature infants presents challenges.

Purpose of the Study:

  • To evaluate humeral cortical bone thickness (CBT) as a marker for metabolic bone disease in preterm infants.
  • To identify risk factors associated with the development of osteomalacia in this population.

Main Methods:

  • Measurements of humeral CBT were taken from radiographs of 27 infants born before 32 weeks gestational age.
  • Data were collected at birth and at multiple time points up to 44 weeks postmenstrual age (PMA).
  • Statistical analysis, including logistic regression, was used to determine risk factors for bone thinning.

Main Results:

  • Humeral CBT at 36-44 weeks PMA correlated positively with gestational age and birth weight.
  • Longer duration of mechanical ventilation was associated with decreased CBT.
  • A decrease in CBT was observed in some very early preterm infants despite increasing PMA.

Conclusions:

  • Humeral CBT can serve as a radiologic indicator of metabolic bone disease in preterm infants at 36-44 weeks PMA.
  • Gestational age and mechanical ventilation duration are significant risk factors for cortical bone thinning.
  • Extremely preterm infants' bones remain fragile, necessitating careful management to prevent fractures.

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