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Developmental sacral morphology: MR study from infancy to skeletal maturity.

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This study documents sacral growth in children and adolescents, showing dimensional measurements increase with age. These findings aid surgeons in treating pediatric spinal and pelvic deformities.

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Area of Science:

  • Pediatric orthopedics
  • Developmental anatomy
  • Radiology

Background:

  • Understanding pediatric spinal and pelvic anatomy is crucial for surgical interventions.
  • Normative data on sacral morphology during growth is limited.
  • Accurate anatomical references are needed for pediatric spinal and pelvic deformity correction.

Purpose of the Study:

  • To document the growth and spatial relationship of the sacrum.
  • To establish reference distributions of sacral MRI measurements by age and gender.
  • To provide data for surgical planning in pediatric spinal and pelvic conditions.

Main Methods:

  • Retrospective analysis of 420 asymptomatic subjects aged 0-19 years.
  • Utilized MRI scans to measure eight dimensions and eight angles of the sacrum.
  • Assessed measurement reliability on a subset of 49 subjects.

Main Results:

  • Sacral dimensional measurements increase with age, with a growth spurt in early childhood.
  • S1 canal width reaches adult size by age 5.
  • Angular measurements showed less dependence on age and gender.

Conclusions:

  • Sacral morphology data provides valuable information for surgeons treating pediatric spinal and pelvic deformities.
  • Normative growth data can help adapt adult surgical techniques for pediatric patients.
  • This study offers essential reference data for pediatric orthopedic surgery.