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Study of Sexual Diamorphism in Sacrum Based On Corporobasal Index and Alar Index

Pushpalata V. Kulkarni, Associate Professor, Chhatrapati Shahu Maharaj Shikshan Sanstha (CSMSS) Dental College, Kanchanwadi, Aurangabad, Maharashtra, India. , Pushpalata V. Kulkarni1 , Gautam A. Shroff2 , Suvarna Gulanikar3

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Indian Journal of Anatomy 7(2):p 175-178, Mar-Apr 2018. | DOI: http://dx.doi.org/10.21088/ija.2320.0022.7218.11

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Abstract

Skeleton is an excellent material in living and non-living population for forensic investigation. Sacrum is an ideal bone for determination of sex because it not only reflects general difference between two sexes but shows special adaptation in females for child bearing. It is believed that reliability in identifying female bone is more using alar index and transverse diameter of S1. In our study 100 sacra of both sexes were compared for of Body of First Sacral Vertebra (S1), alar index and corporobasal index. The results show Index of Body of First Sacral Vertebra (S1) in male is 62.53 and in females it is 54.74 Corporobasal Index in male is 57.89 and in females it is 52.80. One way ANOVA shows 0.001 significance suggesting statistically highly significant difference in male and female for both Corporobasal index and Index of Body of First Sacral Vertebra (S1). Alar Index in male is 66.68 and in females it is 71.21. One way ANOVA shows f value as 2.715 which is non-significant. The results show that Index of Body of First Sacral Vertebra (S1) and Corporobasal Index are more reliable perameters than Alar index for determination of sex of Sacrum.

 

 

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DOI: http://dx.doi.org/10.21088/ija.2320.0022.7218.11

Keywords

Sacrum; Sexual Dimorphism; Parameters; Index of Body of First Sacral Vertebra (S1); Corporobasal Index. 

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