Abstract
Background: Humerus is one of the long bones generally favoured in osteometric studies as it appears to yield highest level of classification accuracy in sex determination. Aim: To study the midshaft diameter of humerus and its accuracy factor in sex determination. Methods: A total of 100 (Male - 72, Female - 28) dry human humeri were collected from the Department of Anatomy as well as from the under graduate students of Santhiram Medical College, Nandyal. The maximum midshaft diameter of humerus was measured from absolute greatest diameter without regard to the vertical or transverse plane. The minimum midshaft diameter of humerus was measured from absolute least diameter in the middle without regard to any plane or maximum diameter Results: The mean maximum mid shaft diameter of humerus in male bones was 1.953±0.027 and in female bones was 1.75±0.030. The mean minimum midshaft diameter of humerus in male was 1.657±0.0211 and in female was 1.485±0.026 in the present study Conclusion: The mid shaft diameter can be considered as one of the sex determinations factors due to its higher accuracy in males than females with other predictive variables of humerus.
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