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Abstract

Introduction: The characteristic slightly S-shaped clavicle provides communication between the chest and the upper limb, so it plays an important role in the whole function of the shoulder girdle. For clavicle, various parameters including length, midshaft circumference, sternal end, acromial end, and rhomboid fossa have been used to identify sex in anthropology and forensic sciences. The rhomboid fossa of clavicle, an area of the inferior surface of the sternal end of clavicle, could be present as an impression, tuberosity, depression, or fossa. Materials and Methods: In the present study, a total of 40 dry human clavicle bones of unknown sex and without any gross abnormality will be collected from the Department of Anatomy, Saveetha Dental College, Chennai, for evaluation. With the help of Vernier caliper, the measurements such as the length, breadth, and diameter of rhomboid fossa were measured. The results obtained were analyzed, tabulated, and represented graphically. Results: The average length of the rhomboid fossa of clavicle in male and female was 22.90 ± 1.37 and 20.08 ± 1.54, respectively. The average breadth of the rhomboid fossa of clavicle in male and female was 11.24 ± 0.92 and 10.03 ± 0.768, respectively. The average diameter of the rhomboid fossa of clavicle in male and female was 17.07 ± 0.79 and 15.05 ± 0.48, respectively. Conclusion: Rhomboid fossae were more common in males (36% left and 31% right) than in females (3% left and 8% right). Rhomboid fossa on the right clavicle is indicative of a male clavicle with 81.7%; a fossa on the left clavicular bone is indicative of a male with 92.2% probability.

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	JPR Solutions

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