Age and ossification of the hyoid bone: forensic implications

Area of Science:

• Forensic anthropology
• Anatomical variations
• Human skeletal biology

Background:

• The hyoid bone, a unique U-shaped bone in the neck, plays a crucial role in speech and swallowing.
• Age-related changes and sex differences in skeletal morphology are important in forensic and anthropological studies.
• Bony fusion of the hyoid bone's greater cornua to the central body is a documented developmental process.

Purpose of the Study:

• To investigate the prevalence and patterns of bony fusion of the hyoid bone's greater cornua in a medical examiner population.
• To determine the influence of age and sex on the frequency of hyoid bone fusion.
• To identify any sex-specific patterns in hyoid bone nonfusion.

Main Methods:

• Visual examination of hyoid bones from a medical examiner population.
• Radiographic analysis to assess the presence or absence of bony fusion.
• Statistical analysis to correlate fusion frequency with age and sex.

Main Results:

• Bony fusion of the greater cornua to the central hyoid body increases with advancing age.
• Hyoid bone fusion occurs more frequently in males compared to females.
• Females demonstrate a notably higher incidence of unilateral nonfusion (fusion on only one side).

Conclusions:

• Hyoid bone fusion is a common age-dependent phenomenon with significant sex-based dimorphism.
• The observed patterns of fusion and nonfusion provide valuable data for forensic and anthropological analyses.
• Unilateral nonfusion in females represents a distinct characteristic that warrants further investigation.