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Correlation between pubic bone mineral density and age from a computed tomography sample.

Olivier Dubourg1, Marie Faruch-Bilfeld2, Norbert Telmon3

  • 1Laboratoire d'Anthropologie Moléculaire et d'Imagerie de Synthèse, Université Toulouse III, AMIS FRE 2960 CNRS, 37 Allées Jules Guesde, 31000 Toulouse, France; UNAM, Service de Médecine Légale, Centre Hospitalier Universitaire, 4 Rue Larrey, 49933 Angers Cedex 9, France.

Forensic Science International
|March 31, 2019
PubMed
Summary
This summary is machine-generated.

Bone mineral density (BMD) in the pubic bone decreases with age, offering a potential improvement for the Suchey-Brooks (SB) system in forensic anthropology, especially for individuals over 40. This study explored BMD

Keywords:
AgingBone mineral densityForensic anthropologyPubic boneSuchey–Brooks method

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Area of Science:

  • Forensic Anthropology
  • Osteology
  • Medical Imaging

Background:

  • Age estimation is crucial for biological profiling in forensic anthropology.
  • The Suchey-Brooks (SB) system, based on pubic symphysis morphology, is widely used but less accurate for older individuals.
  • Investigating alternative methods to improve age estimation accuracy in older populations is needed.

Purpose of the Study:

  • To evaluate the relationship between pubic bone mineral density (BMD) and age in individuals over 40 years old.
  • To assess the potential of BMD as a supplementary method to enhance the accuracy of the Suchey-Brooks system for older adults.

Main Methods:

  • Retrospective analysis of multi-slice computed tomography (MSCT) scans of pubic bones from 88 males and 113 females over 40.
  • Quantification of bone mineral density (BMD) and correlation with chronological age.
  • Assessment of intra- and inter-observer reliability for phase allocation.

Main Results:

  • A significant negative correlation was found between BMD and age in both males (R = -0.62) and females (R = -0.55).
  • Intra- and inter-observer reliability for phase allocation was moderate for males and strong for females.
  • A significant BMD difference was observed between stages 6-1 and 6-2 in males.

Conclusions:

  • Pubic bone mineral density (BMD) shows a clear age-related decline, particularly in individuals over 40.
  • BMD measurements present a promising complementary tool to improve the reliability of the Suchey-Brooks system for age estimation in older forensic cases.
  • Further research into other anatomical regions, like the Ward's triangle, could also yield valuable insights into age-related bone density changes.