Anatomic Variation in Morphometry of Human Coracoid Process among Asian Population

Area of Science:

• Orthopedics and Anatomy
• Anthropology and Forensic Science

Background:

• Bone morphometry varies significantly across ethnic groups.
• Previous studies on coracoid process morphometry have largely excluded diverse Asian populations.
• Understanding ethnic variations is crucial for anatomical and clinical applications.

Purpose of the Study:

• To investigate ethnic differences in the morphometry of the coracoid process among Asian populations.
• To compare coracoid process measurements between Indian, Chinese, Myanmarese, and Malay individuals.
• To analyze sex-based morphometric variations within these ethnic groups.

Main Methods:

• Morphometric analysis of the coracoid process using digital calipers and specialized software.
• Examination of 118 specimens, including cadaveric shoulders and shoulder CT scans.
• Inclusion of diverse Asian ethnic groups: Indian, Chinese, Myanmarese, and Malay.

Main Results:

• Significant differences (P < 0.05) in coracoid process morphometry were found between ethnic groups.
• Indian cadaveric shoulders showed a more developed coracoid process, except for tip width.
• CT scan data revealed larger coracoid processes in Chinese compared to Malay subjects, with sex-specific variations.

Conclusions:

• Coracoid process morphometry exhibits significant ethnic and sex-based variations in Asian populations.
• These findings are vital for anatomical understanding, forensic identification, and optimizing orthopedic and shoulder surgeries.
• Further research is warranted to explore the clinical implications of these morphometric differences.