Size and shape of human cranial sutures--a new scoring method

Area of Science:

• Anthropology
• Anatomy
• Forensic Science

Background:

• Sutural patterns in the human cranial vault are complex and vary.
• Objective methods for differentiating these patterns are needed for anthropological and forensic studies.

Purpose of the Study:

• To introduce a novel method for differentiating human cranial vault sutural patterns.
• To analytically compare the coronal and lambdoid sutures using established criteria.

Main Methods:

• Developed a differentiation method based on three criteria: maximal shape extension, basic configuration, and secondary protrusion.
• Applied the method to analyze the coronal and lambdoid sutures in 70 recent Italian skulls (35 males, 35 females).

Main Results:

• The method successfully detected analytical differences in size and shape between coronal and lambdoid sutures.
• Coronal sutures typically exhibit less shape extension, simpler configurations, and lack secondary protrusion compared to lambdoid sutures.
• Observed heterogeneity within sutures, inter-criteria relationships, and predominant symmetry, with slight sexual variations.

Conclusions:

• The proposed method provides an objective approach to characterizing human cranial vault suture morphology.
• Distinct analytical differences exist between coronal and lambdoid sutures, with minimal sexual dimorphism.
• This method can aid in anthropological and forensic analyses of cranial remains.