The accuracy of the anthropometric measurements of knee bones in determination of age and sex in an Egyptian population sample.

The Egyptian Journal of Forensic Sciences and Applied Toxicology Pub Date : 2023-12-01 DOI:10.21608/ejfsat.2023.218749.1294

N. Elrewieny, Heba Mohamed Aboubakr, Heba Mostafa Ahmed, Shimaa Ahmed Alsaeed

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Abstract

Identification of age and sex are considered the cornerstone in biological profile determination in forensic anthropology. AIM OF THE STUDY: To establish a comparative evaluation of the accuracy of some knee bone measurements in sex and age discrimination. METHODS: The anthropometric measurements of knee bones were obtained from Magnetic resonance imaging (MRI) scans of patients in Kasr Elainy school of medicine. Discriminant function analysis is used for sex discrimination by using three measurements of the patella and three measurements of both distal femur & proximal tibia. RESULTS: Both distal femur & proximal tibia measurements were more accurate for sex differentiation. A six novel cutoff values were obtained by Roc curve for sex identification. Patella anteroposterior length showed a significant negative correlation with age by conducting a novel regression equation for age estimation. CONCLUSION: Measuring the patella and both distal femur & proximal tibia dimensions by the MRI scan can be efficient for sex discrimination with more accuracy in both distal femur & proximal tibia dimensions.

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埃及人口样本中膝关节骨骼人体测量在确定年龄和性别方面的准确性。

年龄和性别的鉴定被认为是法医人类学生物侧像鉴定的基石。研究的目的:在性别和年龄歧视的情况下，建立一些膝关节骨测量准确性的比较评估。方法:从Kasr Elainy医学院的患者的磁共振成像(MRI)扫描中获得膝关节的人体测量值。判别函数分析通过使用髌骨的三个测量值和股骨远端和胫骨近端三个测量值用于性别歧视。结果:股骨远端和胫骨近端测量对性别区分更准确。Roc曲线为性别鉴定提供了6个新的截断值。通过建立一种新的年龄估计回归方程，髌骨前后长度与年龄呈显著负相关。结论:通过MRI扫描测量髌骨和股骨远端及胫骨近端尺寸可以有效地进行性别区分，股骨远端及胫骨近端尺寸更准确。

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The Egyptian Journal of Forensic Sciences and Applied Toxicology

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