First Rib Metamorphosis: Its Possible Utility for Human Age-At-Death Estimation

Department of Anatomy, Case Western Reserve University School of Medicine, Cleveland, Ohio 44106, USA.
American Journal of Physical Anthropology (Impact Factor: 2.38). 11/1999; 110(3):303-23. DOI: 10.1002/(SICI)1096-8644(199911)110:3<303::AID-AJPA4>3.0.CO;2-O
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Human first ribs demonstrate predictable, sequential changes in shape, size, and texture with increasing age, and thus, can be used as an indicator of age at death. Metamorphosis of the first rib's head, tubercle, and costal face was documented in a cross-sectional sample of preadult and adult first ribs of known age at death from the Hamann-Todd skeletal collection (Cleveland Museum of Natural History, Cleveland, Ohio). Blind tests of the usefulness of the first rib as an age indicator were conducted, including tabulation of intraobserver and interobserver inaccuracies and biases. First rib age estimates show inaccuracies and biases by decade comparable to those generated by other aging techniques. Indeed, the first rib method is useful as an isolated age indicator. When used in conjunction with other age indicators, the first rib improves the quality of summary age assessments.

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Available from: Israel Hershkovitz, Mar 01, 2015
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    • "Bluckberry and Chamberlain, 2002; Igarashi et al., 2005; Lovejoy et al., 1985; Meindl and Lovejoy, 1989), skull sutures (i.e. Meindl and Lovejoy, 1985), the first rib (Kunos et al., 1999) and the costo-sternal epiphysis of the fourth rib ( ˙ Isçan, 1989; ˙ Isçan et al., 1987; Loth and ˙ Isçan, 1989). The performance of ageing methods that consider changes in dental and periodontal tissues, such as the transparency of the root apex, degree of periodontal retraction and pulp chamber dimensions of uniradicular teeth (Drusini et al., 1991; Ermenc, 1997; Foti et al., 2001; Kvaal and Solheim, 1994; Lamendin et al., 1992; Megyesi et al., 2006; Prince and Ubelaker, 2002; Solheim, 1989; Xiaohu et al., 1991), will also be assessed. "
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    ABSTRACT: Osteological reference collections play a key role in bioanthropological research; they allow the development and testing of methods for sexing and ageing individuals using various bone and dental attributes. This paper presents the first stage results of the ongoing Chacarita Research Project, which aims to generate and study a reference collection of adult skeletons representative of the contemporary population of Buenos Aires city. The Chacarita Collection consists of unclaimed human remains of individuals of known nationality, sex, age, cause and date of death from the Chacarita Public Cemetery. Unlike other similar endeavours, this sample has been completely exhumed using archaeological techniques. So far, a total of 146 adult skeletons have been recovered (60 females - 41.1% and 86 males - 58.90%), the majority of which have ages-at-death in the range of 71-90 years. They were born primarily in Argentina (n=133; 91.1%), although other nationalities are also represented. Dates of death range between 1987 and 2000. In the short term, the osteological study of this collection will allow assessment of the performance of classical methods of sex determination and age-at-death estimation in a local setting. A special priority will be given to the study of osteological changes in individuals over 50 years. As the sample is being retrieved by exhumation, the impact of taphonomic agents on the most diagnostic bone structures is also being assessed. In the long term, this osteological collection will be available to generate new population-specific techniques and to develop comparative biological studies.
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    • "000 ; Schaeffer et al . , 2009 ; Black y Ferguson , 2011 ) en un buen estado de preservación , resulta im - prescindible validar los procedimientos aplica - dos en una etapa metodológica previa . Dichas técnicas alternativas evalúan principalmente variables relacionadas con el dimorfismo en el tamaño de los elementos para la determinación sexual ( Kunos et al . , 1999 ; Ríos Frutos , 2005 ; Schmitt et al . , 2006 ; Acharya y Mainali , 2008 ; Barrier y L ` Abbé , 2008 ; Zadzinska et al . , 2008 ; Kranioti et al . , 2009 ; Mountrakis et al . , 2010 , entre muchos otros ) y con la linearidad en las tasas de crecimiento , desarrollo y degeneración tisular para la estimación de la edad de muer - te ( Kvaa"

    Full-text · Article · Jan 2012
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    • "Ribs have long been a source of scientific, gastronomic and even theological interest (Anon, 1959; Crocker, 1972; Schmidt & Freyschmidt, 1993; Kunos et al., 1999). Their global anatomic appearance in humans is well characterized (Kunos et al., 1999; Resnick, 2002). "
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