93. The Study Quantitative Analysis of the Female Pelvis
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Background: Estimation of sex represents one of the most important aspects of analysis in forensic anthropology. Selection of appropriate methods depends of course on what skeletal elements are present and what general age is represented. The pelvis is possibly the most accurate bone in the human body for age and sex determination, with the accuracy being 95% when completed. Aim: This study aimed to determine the forensic sex using pelvic X-rays on a sample of Libyan Population in Tripoli. Subjects and methods: The study includes 156 persons (15-25 years) in two groups; Group I which includes 78 Males. Group II which includes 78 females). All subjects will be subjected to poster anterior pelvis X-rays to determine sex estimation by: the height of ilium, interacetabular distance, acetabular diameter, pelvic breadth and pelvic inlet breadth. Results: In comparison between male and female in different measured parameters, there was a statistical significance increase in the height of ilium and acetabular diameter in male and in inter-acetabular distance and breadth of pelvic inlet among females; but no statistical significance difference found between male and female in greatest breadth of pelvis. Conclusion: The pelvis bone is good for sex determinations with the maximum percentage of 86% sex estimation accuracy. It is reliable tool in estimation of forensic sex estimation.
Forensic anthropology
Female pelvis
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In order to study the suitability of the skull for sex determination, a sample of 202 adult human skeletons with pelves was analysed according to the recommendations of the Workshop of European Anthropologists (1980). The remains originated from citizens of the medieval city of Dordrecht in The Netherlands (AD 1275–1572). Sex was determined by means of non-metrical morphological sex-descriminant features of the skull (cranium plus mandible) and of the separate cranium and separate mandible, and compared against determination made using the pelvis. The reliability of the pelvic sex determination was verified by evaluating the position of the lowest intermediate frequency of the bimodal distribution of the degrees of sexualization of the pelvis. Contingency diagrams and tables were drawn with respect to the sex diagnosis and the degree of sexualization of (i) the skull (cranium plus mandible) and related pelvis, (ii) the cranium and related pelvis, and (iii) the mandible and related pelvis. It was concluded that sex diagnosis using the skull, cranium and mandible corresponded to that using the pelvis in 96.2 per cent (N=106), 95.7 per cent (N=140) and 69.5 per cent (N=118) of the cases, respectively. Notably, in the case of female pelves (N=64), 51.6 per cent of the related mandibles were diagnosed as 'male'. Therefore a caveat must be entered in the use of the mandible for the determination of sex, because in the Low Countries it was found to lack reliability. © 1997 by John Wiley & Sons, Ltd.
Mandible (arthropod mouthpart)
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Slit
Arteriotomy
Hyperelastic material
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The objective of this study was to re-evaluate the Caldwell-Moloy (1933) classification of female pelvic shape, which has been traditionally, and still is currently, taught to students of midwifery and medicine. Using modern pelvimetric methodologies and geometric morphometric (GM) analysis techniques, we aim to elucidate whether these classic female pelvic types are an accurate reflection of the real morphometric variation present in the female human pelvis. GM analysis was carried out on sets of pelvic landmarks from scans of women living in a contemporary Western Australian population. Sixty-four anonymous female multi-detector computer tomography (MDCT) scans were used for most of the study and 51 male scans were also examined for comparison. Principle component analysis (PCA) found that there was no obvious clustering into the four distinct types of pelvis (gynaecoid, anthropoid, android and platypelloid) in the Caldwell-Moloy classification, but rather an amorphous, cloudy continuum of shape variation. Until more data is collected to confirm or deny the statistical significance of this shape variation, it is recommended that teachers and authors of midwifery, obstetrics and gynaecological texts be more cautious about continuing to promote the Caldwell-Moloy classification, as our results show no support for the long taught ‘four types’ of pelvis.
Female pelvis
Variation (astronomy)
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