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Morphometric measurements on the sternum. LM -Length of the manubrium: distance between the jugular notch in the manubrium of the sternum to the manubrium sternal junction; EBL -Sternum body length: distance between the sternal manubrium junction to the xiphosternal junction.
Source publication
Introduction: the sternum bone is useful in morphological sex discrimination, especially when other bones with greaterdiscrimination capacity are not available, such as the pelvis and some long bones. Results found in different populationinvestigations, as well as the need to have reference values for the sternal index, have led to a significant in...
Context in source publication
Context 1
... study was approved by the Ethics and Research Committee of the Federal University of Sergipe, protocol number: CAAE: 53613116.1.0000.5546. After individualization of the sternum, the following measurements were taken: lengths of the sternum manubrium (from the jugular or suprasternal notch to the sternal manubrium junction) and the sternum body (from the sternal manubrium junction to the xiphosternal junction) (Figure 1). Measurements were performed using a 0.01mm precision digital caliper. ...
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Citations
El reconocimiento y la determinación del sexo a partir de fragmentos y restos de esqueletos humanos ha sido, hasta ahora, una tarea compleja para expertos forenses y antropólogos. Para los primeros, se vuelve crucial en casos de desastres masivos, catástrofes, como actos terroristas y guerras. El estudio con huesos de pelvis, cráneo, fémur y otros huesos largos ha contribuido significativamente a analizar la determinación del sexo en estas situaciones. El estudio del dimorfismo del esternón puede convertirse en un elemento más que puede colaborar con este tipo de conocimiento. El presente estudio buscó investigar, en fetos humanos, el dimorfismo sexual del esternón, a partir de sus mediciones perimetrales, que fueron tratadas por métodos estadísticos. Para ello, tres observadores diferentes utilizaron un paquimetro digital con una precisión de 0,01mm y se calculó la media de las mediciones obtenidas. Las diferencias en el promedio se evaluaron mediante la prueba t y la prueba de Mann-Whitney, así como el análisis discriminante. Los hallazgos de las mediciones del esternón en fetos humanos no nos parecieron un indicador confiable de la determinación del sexo. Esperamos que otros estudios con un mayor número de muestras y el uso de otras técnicas posibles también colaboren con el sujeto.
Das Erkennen und Bestimmen des Geschlechts aus Fragmenten und Überresten menschlicher Skelette war bisher eine komplexe Aufgabe für Forensiker und Anthropologen. Für erstere wird es bei Massenkatastrophen, Katastrophen wie Terroranschlägen und Kriegen von entscheidender Bedeutung. Die Studie mit Knochen des Beckens, des Schädels, des Oberschenkelknochens und anderer langer Knochen hat wesentlich dazu beigetragen, die Bestimmung des Geschlechts in diesen Situationen zu analysieren. Das Studium des Brustbeindimorphismus kann ein weiteres Element sein, das mit dieser Art von Wissen zusammenarbeiten kann. Ziel der vorliegenden Studie war es, bei menschlichen Föten den Geschlechtsdimorphismus des Brustbeins auf der Grundlage seiner Umfangsmessungen zu untersuchen, die mit statistischen Methoden behandelt wurden. Zu diesem Zweck verwendeten drei verschiedene Beobachter ein digitales Pachymeter mit einer Genauigkeit von 0,01 mm und berechneten den Durchschnitt der erhaltenen Messungen. Unterschiede im Durchschnitt wurden mit dem t-Test und dem Mann-Whitney-Test sowie der Diskriminanzanalyse bewertet. Befunde aus Messungen des Brustbeins bei menschlichen Föten schienen uns kein verlässlicher Indikator für die Geschlechtsbestimmung zu sein. Wir hoffen, dass weitere Studien mit einer größeren Anzahl von Proben und der Verwendung anderer möglicher Techniken ebenfalls mit dem Thema zusammenarbeiten werden.
The recognition and determination of sex from fragments and remnants of human skeletons has been, until now, a complex task for forensic experts and anthropologists. For the former, it becomes crucial in cases of mass disasters, catastrophes, such as terrorist acts and wars. The study with bones of the pelvis, skull, femur and other long bones has significantly contributed to analyze the determination of sex in these situations. The study of sternum dimorphism can become one more element that may collaborate with this type of knowledge. The present study sought to investigate, in human fetuses, the sexual dimorphism of the sternum, based on its perimeter measurements, which were treated using statistical methods. For this purpose, three different observers used a digital pachymeter with a precision of 0.01mm and the average of the measurements obtained was calculated. Differences in average were evaluated using the t-test and Mann-Whitney test, as well as discriminant analysis. Findings from measurements of the sternum in human fetuses did not seem to us to be a reliable indicator of sex determination. We hope that further studies with a larger number of samples and the use of other possible techniques will also collaborate with the subject.
